Watlow DC10-12P0-0010, DC10-24S5-0000, DC80-60K2-0000, DC90-24K2-0000, DC3T-60F0-0000 User manual

DIN-A-MITE

®

Style C

Solid-State Power Controller

User’s Manual

DIN-A-MITE Solid-State Power Controller

0600-0025-0009 Rev Q Made in the U.S.A.

January 2016

Please consult this user’s manual when you
place your new DIN-A-MITE into service. It
contains all the necessary information to mount
and wire the product into the application. This
manual also contains all user-pertinent
specifications and semiconductor fusing
recommendations. Refer to national and local
electrical code safety guidelines whenever you
install electrical equipment.

The Watlow DIN-A-MITE power controller
includes single-phase, 3-phase, 2-leg, and 3­phase, 3-leg, 120 to 600VÅ (ac) operation.
Current switching capabilities range from 30 to

80A, depending on the model ordered. See the
output rating curves.

Zero-cross variable time base or V‡ (ac/dc) input
contactor versions are available. Shorted SCR
(silicon controlled rectifier) and open-heater
protection is available on some zero-cross
models. Phase angle and phase angle with
current limit is also available on single-phase
models. The model number indicates the power
controller’s configuration.

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2

WATLOW DIN-A-MITE Style C User's Manual

General Specifications

Operator Interface

• Command signal input and indication light

• Alarm output and indication light

• Current limit indication LED

Amperage Rating

See the output rating curve chart on page 5 for all

the natural convection, fan-cooled, and through­wall mount models.

Ratings are into a resistive heater load

• Maximum surge current for 16.6 milliseconds, 1,350 A
peak

• Maximum I2t for fusing is 9100 A2s

• Latching current: 500mA minimum

• Holding current: 200mA minimum

• Fan current: 0.14 A for 24VÎ (dc); 0.12 A for 120VÅ
(ac); 0.06A for 240VÅ (ac)

• Off-state leakage 1mA at 25°C (77°F) maximum

• Power dissipation is 1.2 watts per amp switched

per controlled leg.

• 200KA SCCR type 1 and 2 approved with the

recommended fusing (see page 4)

Line Voltage

• 24 to 48VÅ (ac) units: 20VÅ minimum to 53VÅ
maximum

• 120 to 240VÅ (ac) units: 48VÅ minimum to 265VÅ
maximum

• 277 to 600VÅ (ac) units: 85VÅ minimum to 660VÅ
maximum

Alarms (zero cross models only)

Shorted SCR Alarm Option

• Alarm state when the input command signal is off and
a 10 A or more load current is detected by the current
transformer (two turns required for 5 A or three turns
for 2.5 A).

Open Heater Alarm Option

• Alarm state when the input command signal is on and
the load current detected by the current transformer is
less than the alarm set point. Available with Input
Control Signal option S only.

Alarm Output

• Energizes on alarm, non-latching

• Triac 24 to 240VÅ (ac), external supply with a current
rating of 300 mA @ 25°C (77°F), 200mA @ 50°C
(122°F), 100mA @ 80°C (176°F) and a holding current
of 200 µA with a latching current of 5mA typical.

Agency Approvals

•ROHS

• CE with proper filter:

2004/108/EC Electromagnetic Compatibility Directive
EN 61326: Industrial Immunity Class A emissions
Not suitable for Class B environments.
2006/95/EC Low Voltage Directive
EN 50178 Safety Requirements
Installation category III, Pollution degree 2
Phase angle and phase angle with current limit Input

Control Signal Types (P and L) are not CE approved.

•UL

®

50 Type 4X Enclosure and UL ANSI/ISA 12.12.01

Temperature Code T4A

The through-wall heatsink package is suitable for use in

Class I, Division 2 Groups A, B, C and D Hazardous
Locations or unclassified or non-hazardous locations.

çWARNING – EXPLOSION HAZARD

SUBSTITUTION OF ANY COMPONENTS MAY IMPAIR
SUITABILITY FOR CLASS I, DIVISION 2.

çWARNING – EXPLOSION HAZARD

DO NOT DISCONNECT WHILE THE CIRCUIT IS
LIVE OR UNLESS THE AREA IS KNOW TO BE FREE
OF IGNITIBLE CONCENTRATIONS.

•UL

®

508 listed and C-UL®, File E73741

• Shock and vibration tested to IEC 60068-2-32

• Vibration tested to IEC 60068-2-6

Input Terminals

• Compression: Will accept 0.2 to 1.5 mm

2

(24 to 16

AWG) wire

• Torque to 0.5 Nm (4.4 in-lb) with a 3.5 mm (1/8 in)
blade screwdriver

• Wire strip length 5.5 mm (0.22 in)

• Line and load wire insulation rating must be 75C or

higher, copper conductor only

Line, Load and Ground Terminals

• Compression: Will accept 2.5 to 25 mm

2

(14 to 3 AWG)

wire

• Torque to 2.7 Nm (24 in-lb) with a 6.4 mm (1/4 in)
blade screwdriver, or a Type 1A #2 Pozi driver.

• Retorque after 48 hours to minimize wire cold flow.

• Retorque line and load terminals every 3 to 6 months.

• Wire strip length 11 mm (7/16 in)

Operating Environment

• See the output rating curve chart on page 5.

• 0 to 90% RH (relative humidity), non-condensing

• Storage temperature: -40 to +85°C (-40 to 185°F)

• Insulation only tested to 3,000 meters

DIN Rail Mount

• DIN EN 50022, 35 by 7.5 mm

• Minimum clipping distance: 34.8 mm (1.37 in)

• Maximum clipping distance: 35.3 mm (1.39 in)

Back Panel Mount

• Four mounting holes M4 (No. 8) fastener

Through-Wall Mount

• See page 8 for through-wall cutout

NOTE: Mount cooling fins vertically. Cooling fan power
terminals: quick connect, 1/8" push on, 16-14 AWG wire.
Amp part no. 640929-1 or equivalent

Weight

• 1.0 to 1.9 kg (2.2 to 4.2 lb) depending upon model

Specifications are subject to change without notice.

Note: The DIN-A-MITE C was changed in April of

2007 to add the shut down circuitry (fan failure) to
all units shipped. The shut down temperature is
approximately 117C.

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WATLOW DIN-A-MITE Style C User's Manual

3

Additional Specifications: Phase Angle; Phase Angle Current Limit; & Single Cycle VTB

Operation

• Burst firing (zero-cross) control, single-cycle variable
time base, Type S single-phase and 3-phase. Unit is
not on for more than one full cycle under 50% power
and not off for more than one full cycle above 50%
power.

• Phase angle control, single-phase only

Input Command Signal

• 0 to 20mA, 4 to 20mA, 12 to 20mA, Î (dc), 0 to 5VÎ, 1
to 5VÎ, and 0 to 10VÎ

• Input impedance 250Ω for 4 to 20mA, 5kΩ for linear
voltage input

Output Voltage

• 100 to 120VÅ (ac), 200 to 208VÅ, 230 to 240VÅ,
277VÅ, 400VÅ, 480VÅ, 600VÅ, -15%/+10%, 50 or
60 Hz independent +/-5% (Input Control Signal Type
L, P and S)

Phase Angle Accuracy

• Output on time is directly proportional to the command
signal. Output on time is accurate to within 5% of the
command signal input at 25 degrees C ambient. See
chart below for command signal input to output power
transfer function. Temperature stability at ambient
temperature is less than 0.25%/degrees C.

Single Cycle VTB Accuracy

• Output power is directly proportional to the command
signal. Output power is accurate to within 5% of the
command signal input at 25 degrees C ambient.
Temperature stability is less than 0.25%/degrees C
ambient temperature change.

Soft Start
(Phase Angle Input Control Signal Type P and L)

Typically:

• 5 seconds soft start on power up

• Soft start on thermostat overtemperature

• Soft start on 1/2 cycle drop out detection

• 1 second soft switching on set point change

Options

• Manual Control Kit (1kΩ, 1 turn potentiometer with dial
scale labeled 0 to 100%) 08-5362

• Alarm option is not available on phase angle type P or
type L.

Resolution

• Better than 0.1% of input span with respect to output
change.

Control Mode, Zero-Cross

• Input Control Signal Type C: VÎ (dc) input contactor.

To increase service life, the cycle time should be less
than 3 seconds.

• Input Control Signal Type K: VÅ (ac) input contactor.

To increase service life, the cycle time should be less
than 3 seconds.

• Input Control Signal Type F: 4 to 20mAÎ (dc)

proportional variable time base control.

Input Command Signal

• AC contactor

24VÅ ±10%, 120VÅ +10%/-25%, 240VÅ (ac)
+10%/-25% @ 25mA maximum per controlled leg

• Do not use the DIN-A-MITE Vac-input models with a
temperature controller that includes an RC snubber
circuit across its output. Remove the RC snubber
circuit before placing the DIN-A-MITE into service.

• DC Contactor

4.5 to 32VÎ (dc): maximum current @ 4.5VÎ
(dc) is 6mA per leg. Add 2mA per LED used to the
total current.

• Loop powered linear current

4 to 20mAÎ (dc): loop-powered. Input Type
F0 option only. (Requires current source with 8.0VÎ
(dc) available. No more than two inputs connected in
series.)

Linearity (Input Control Signal Type F)

• Full on point 19.5 to 19.9mAÎ (dc), maximum voltage

of 6.2V peak.

• ±5% input to output power accuracy, 0% to 100% of
span (4.3 to 19.7mA or 12.3 to 19.7mA).

• Temperature stability is less than 0.15%/°C change.

Additional Specifications for Contactors and Proportional Controls

Phase Angle Command Signal Input to Output Power

Note: The DIN-A-MITE C was changed in April of

2007 to add the shut down circuitry (fan failure) to
all units shipped. The shut down temperature is
approximately 117C.

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100.0

90.0

80.0

70.0

60.0

50.0

40.0

Output (%P)

30.0

20.0

10.0

0.0
0 102030405060708090100

Command Signal Input (%P)

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DIN-A-MITE C Ordering Information

To order, complete the code number on the right with the information below:

Style C solid-state power controller

Phase

1 = single-phase, 1 controlled leg
2 = 3-phase, 2 controlled legs
3 = 3-phase, 3 controlled legs (use with four-wire wye)
8 = 2 independent zones (input control C, K)
9 = 3 independent zones (input control C, K)

Cooling and Current Rating Per Leg

0 = Natural convection standard DIN rail or panel heatsink
1 = Fan-cooled 120VÅ (ac) standard DIN rail or panel heatsink
2 = Fan-cooled 240VÅ (ac) standard DIN rail or panel heatsink
3 = Fan-cooled 24VÎ (dc) fan standard DIN rail or panel heatsink
T =Natural convection through-wall or cabinet heatsink (UL 50)

Line and Load Voltage

02 = 24 to 48VÅ (ac) (Input Control Signal C, F, or K only)
12 = 100 to 120VÅ (ac) (Input Control Signal L, P or S only)
20 = 200 to 208VÅ (ac) (Input Control Signal L, P or S only)
24 = 120 to 240VÅ (ac) (Input Control Signal C, F or K only);

230 to 240VÅ (ac) (Input Control Signal L, P or S only)
27 = 277VÅ (ac) (Input Control Signal L, P or S only)
40 = 400VÅ (ac) (Input Control Signal L, P or S only)
48 = 480VÅ (ac) (Input Control Signal L, P or S only)
60 = 277 to 600VÅ (ac) (Input Control Signal C, F or K only);

600VÅ (ac) (Input Control Signal L, P or S only)

Input Control Signal

C0 =4.5 to 32VÎ (dc) contactor
K1 = 22 to 26VÅ contactor
K2 = 100 to 120VÅ contactor
K3 = 200 to 240VÅ contactor
F0 = Proportional 4 to 20 mA (loop powered)
L(0 to 5) = Phase angle with current limiting (DC1 only, Alarm 0 only,

includes one current transformer - Single phase only)
P(0 to 5) = Phase angle (DC1 only, Alarm 0 only - Single phase only)
S(0 to 5) = Single-cycle variable time base
(Select one of the following input options for L, P, S, (0 to 5))

0 = 4 to 20mA
1 = 12 to 20mA (for Input Control Signal option S only)
2 = 0 to 20mA
3 = 0 to 5VÎ (dc) proportional
4 = 1 to 5VÎ (dc) proportional
5 = 0 to 10VÎ (dc) proportional

Alarm

0 = No alarm
S = Shorted-SCR alarm (not available on Phase options 8 & 9 or Control options L & P)
H =Open-heater and shorted-SCR alarm (for Input Control Signal option S only)

User Manual Language

0 = English
1 = German
2 = Spanish
3 = French

Custom Part Numbers

00 = Standard part
1X = 1-second soft start (control option P, L)
XX = Any letter or number, custom options, labeling, etc.

4

WATLOW DIN-A-MITE Style C User's Manual

__ __ __ __ - __ __ __ __ - __ __ __ __

D C

Current Rating Table

Model Current
(first 4 digits at 50°C
of part number) (122°F)

DC10 55 A
DC1T 62 A
DC11, DC12, DC13 75 A
DC20, DC80 40 A
DC2T, DC8T 46 A
DC21, DC22, DC23 65 A
DC81, DC82, DC83
DC30, DC90 30 A
DC3T, DC9T 35 A
DC31, DC32, DC33 55 A
DC91, DC92, DC93

Note:

• Recommended fusing
options to meet 200KA
SCCR, type 1 and 2
approved. All other
fuse and SCR com­binations are de­faulted to 5KA SCCR
per UL508A and NEC
guidelines.

Not CE compliant
for conducted or
radiated emissions

Semiconductor Fuses for Applications Through 600VÅ (ac):

Semiconductor Watlow Fuse Bussman Fuse Watlow Holder Ferraz Holder

Fuse Rating P/N P/N P/N P/N

30A 17-8030 FWP30A14F 17-5114 USM141i
40A 17-8040 FWP40A14F 17-5114 USM141i
50A 17-8050 FWP50A14F 17-5114 USM141i
63A 17-8063 FWP63A22F 17-5122 US221i
80A 17-8080 FWP80A22F 17-5122 US221i
100A 17-8100 FWP100A22F 17-5122 US221i

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WATLOW DIN-A-MITE Style C User's Manual

5

Output Rating Curves

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

25

30

35

40

45

50

55

60

65

70

75

80

90

85

Current (Amps) into a Resistive Load

Maximum Internal Enclosure Ambient Temperature (°C)

DIN-A-MITE Style C Ratings at 100% On

Natural Convection

3-phase, 3-leg

3-phase, 2-leg

Single-phase

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70

25

30

35

40

45

50

55

60

65

70

Current (Amps) into a Resistive Load

Maximum Internal Enclosure Ambient Temperature (°C)

DIN-A-MITE Style C Ratings at 100% On

75 80 85 90

Fan-Cooled

75

80

3-phase, 3-leg

3-phase, 2-leg

Single-phase

Extended Heater And SCR Life
With Variable Time Base

Models: DC _ _ - [02, 24, 60] F0 - _ _ _ _

20% Power, 3 AC line cycles on, 12 cycles off

50% Power, 3 AC line cycles on, 3 cycles off

Phase Angle

Single-Cycle Variable Time Base

With single-cycle variable time base (VTBS)
control, at 50% power, power is on one cycle, and
off one cycle. At 25%, it is on for one cycle and
off for three. Under 50%, the unit is not on for
more than one consecutive cycle. Over 50%, the
unit is not off for more than one consecutive
cycle. This model will work with a linear voltage
input, a 4 to 20mA input or a potentiometer
input.

Phase angle control (control Type P) is infinitely
variable inside the sine wave. This provides a
variable voltage and/or current output. This
option includes soft start and line voltage
compensation. This model will work with a linear
voltage input, a linear current source input or a
potentiometer input. This is single-phase only.
Alarms not available on phase angle models.

Models: DC _ _ - _ _ S _ - _ _ _ _

25% Power, 1 AC line cycle on, 3 cycles off

Models: DC1 _ - _ _ [L, P] _ - 0 _ _ _

With variable time base control, the power
controller automatically adjusts the time base
and output power with respect to process input.
Accelerated life testing verified that the variable
time base control significantly reduces
expansion and contraction of the heater element.
This extends heater and SCR life while
improving the process temperature control. You
save money on heaters, down time and
maintenance.

50% Power, 1 AC line cycle on, 1 cycle off

Ó

6

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70

Current (Amps) into a Resistive Load

25

30

35

40

45

50

55

60

65

70

75

80

Ambient Air Around Heatsink Fins ( C)

DIN-A-MITE Style C Ratings at 100% On

Through-Wall Heatsink

75 80

Recommended maximum

enclosure temperature is 80 C (176 F)

3-phase,

2-l

eg

3

-

phase, 3-

l

eg

Single-phase

Combination Fuses for Applications Through 600VÅ (ac):

Semiconductor Watlow Fuse Bussman Watlow Holder Bussmann Holder

Fuse Rating P/N P/N P/N P/N

30A 0808-0325-0030 DFJ30 0808-0326-1530 CH30J1i
40A 0808-0325-0040 DFJ40 0808-0325-3560 CH60J1i
50A 0808-0325-0050 DFJ50 0808-0325-3560 CH60J1i
63A 0808-0325-0060 DFJ60 0808-0325-3560 CH60J1i
80A 0808-0325-0080 DFJ80 0808-0325-7010 J60100-1CR
100A 0808-0325-0100 DFJ100 0808-0325-7010 J60100-1CR

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142 mm (5.59 in)

131 mm
(5.17 in)

146 mm (5.74 in)

102 mm (4.0 in)

Front panel is touch-safe,
no clearance is required.

102 mm (4.0 in) clearance for air flow and wire bending radius

102 mm (4.0 in) clearance for air flow and wire bending radius

150 mm
(5.89 in)

44 mm

(1.73 in)

57 mm

(2.26 in)

127 mm
(5.00 in)

79 mm

(3.10 in)

102 mm (4.0 in) minimum

Side

Rail Release Tab
(pull down)

194.1 mm
(7.64 in)

1. Push the unit in and down to catch the rail
hook on top of the rail.

2. Rotate the bottom of the unit in toward the
rail.

3. The rail clasp will audibly “snap” into place.
If the DIN-A-MITE does not snap into place,
check to see if the rail is bent.

4. Mount the cooling fins vertically.

ç

3

WARNING:
Only authorized and
qualified personnel
should be allowed to
install and perform
preventive and corrective
maintenance on this unit.
Failure to follow this
guideline could result in
damage to equipment,
and personal injury or
death.

5

WARNING:
Hot surface, do not touch
the heat sink. Failure to
follow this guideline could
result in personal injury.

ç

Mount the cooling fins
vertically.

Unit Dimensions - Fan-Cooled

ç
Ó

3

5

1

1

2

Mount

Dismount

6

WATLOW DIN-A-MITE Style C User's Manual

1. Press down on the release tab while rotating
the unit up and away from the rail.

3

4

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WATLOW DIN-A-MITE Style C User's Manual

7

ç
Ó

3

WARNING:
Only authorized and
qualified personnel should
be allowed to install and
perform preventive and
corrective maintenance on
this unit. Failure to follow
this guideline could result
in damage to equipment,
and personal injury or
death.

5

WARNING:
Hot surface, do not touch
the heat sink. Failure to
follow this guideline could
result in personal injury.

ç

Mount the cooling fins
vertically.

Unit Dimensions - Rail-Mounted

ç
Ó

3

5

142 mm (5.59 in)

131 mm
(5.17 in)

146 mm (5.74 in)

102 mm (4.0 in)

Front panel is touch-safe, no clearance is required.

102 mm (4.0 in) clearance for air flow and wire bending radius

102 mm (4.0 in) clearance for air flow and wire bending radius

150 mm
(5.89 in)

Rail Release Tab

(pull down)

44 mm

(1.73 in)

57 mm

(2.26 in)

127 mm
(5.00 in)

79 mm

(3.10 in)

102 mm (4.0 in) minimum

Side

Front

138 mm
(5.45 in)

54 mm (2.11 in)

46 mm (1.81 in)

38 mm (1.51 in)

123

456

48 mm

(1.89 in)

Allowance for M4
(#8 Fastener)

Allowance for M4
(#8 Fastener)

DIN-EN 50022
35 by 7.5 mm rail
(clipping distance =

34.7 to 35.3 mm
[1.366 to 1.390 in])

87 mm

(3.42 in)

Ground
wire
entry

146 mm
(5.74 in)

83 mm

(3.25 in)

Top

13 mm

(0.50 in)

Side by side

clearance

for wire routing

Unit Dimensions - Through-Wall (Cabinet Panel)

Top

114 mm
(4.50 in)

57 mm (2.25 in)

outside

(any gauge)

55 mm (2.17 in)

inside

(12 gauge)

Front panel is touch-safe,
no clearance is required.

Sheet Metal (12 gauge)

ç
Ó

3

5

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8

WATLOW DIN-A-MITE Style C User's Manual

Mounting

Mounting procedure
for UL® 50 Type 4X
Enclosure and UL® /
ANSI 12.12.01 Through­wall mount models

Materials included:

(1) Silicone gasket

(8) M5 screws and

lockwashers

(1) DIN-A-MITE C

through-wall

1. Drill and cut the
panel as shown in
the dimensioned
drawing at right.

2. Remove the
mounting screws
from the heatsink.

3. Peel off the
protective film from
the silicone
gasket. Stick the
gasket to the
heatsink so the
gasket holes line up
with the screw holes
in the heatsink.

4. Mount the heatsink
vertically. Torque to

2.26 to 2.82 Nm (20
to 25 in-lb).

Ground lug (2-8 GA

M5 (0.8 by 10 mm) (8)
M5 Internal Tooth Lock Washer (8)
included

178 mm (7.00 in)

122 mm (4.81 in)

Panel
Opening
Outline

102 mm (4.0 in) minimum
clearance for air flow
(top and bottom)

10 mm (0.4 in) minimum
clearance for air flow
(both sides)

Front

123

456

Current Transformer Dimensions

Typical Panel Opening

Drill 5.8 mm (0.228 in) (8)

Heatsink Outline

9.5 mm (0.375 in) Reference

10.8 mm (0.425 in)

41.3 mm

(1.625 in)

117.5 mm
(4.625 in)

148.6 mm
(5.850 in)

161.9 mm
(6.375 in)

8.6 mm (0.338 in) Reference

7.0 mm (0.275 in)

78.8 mm

(3.103 in)

98.1 mm

(3.862 in)

105.1 mm
(4.137 in)

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26.3 mm (1.034 in)

WATLOW DIN-A-MITE Style C User's Manual

9

ç
Ó

1

WARNING:
Use National Electric (NEC)
or other country-specific
standard wiring practices to
install and operate the DIN­A-MITE. Failure to do so
may result in damage to
equipment and property,
and/or injury or loss of life.

Ó

3

WARNING:
Only authorized and
qualified personnel should
be allowed to install and
perform preventive and
corrective maintenance on
this unit. Failure to follow
this guideline could result
in damage to equipment,
and personal injury or
death.

Ó

4

WARNING:
Do not use the DIN-A-MITE
Vac-input models with a
temperature controller that
includes an RC snubber
circuit across its output.
Remove the RC snubber
circuit before placing the
DIN-A-MITE into service.

NOTE:
Alarm options not available
with multizone input
option.

Input Wiring

ç
Ó

1

Ó

3

Ó

4

(For models DC [1, 2, 3] _ - _ _ [C, F, K] _ - _ _ _ _)

7
8

9
10
11
12
13
14
15
16
17
18
19
20

1 2 3

4 5 6

Signal Alarm

Gain

Bias

Open

Heater

Limit

+

-

+

-

Adjustment

Potentiometers

Zone 1 VÎ (dc) Input: +

Zone 3 VÎ (dc) Input: +

Zone

1

Zone

2

Zone

3

-

-

7
8
9

10
11
12
13
14
15
16
17
18
19
20

1 2 3

4 5 6

Signal Alarm

Gain

Bias

Open

Heater

Limit

Adjustment

Potentiometers

+

-

+

-

+

-

Zone 1 VÎ (dc) Input: +
Zone 2 VÎ (dc) Input: +

-

-

Zone 3 VÎ (dc) Input: +

-

Zone

1

Zone

2

Zone

3

2-zone

3-zone

Multizone Input Wiring

ç
Ó

1

Ó

3

Ó

4

(For models DC [8, 9] _ - _ _ _[C, K] - 0 _ _ _)

V~ (ac) Input:

7
8

9
10
11
12
13

+

-

Zone 1

Zone 3

V~ (ac) Input:

Zone 1 V~ (ac) Input:

7
8

9
10
11
12
13

+

-

Zone 2 V~ (ac) Input:

Zone 3 V~ (ac) Input:

4.5Vdc 9.0Vdc 12.0Vdc 24.0Vdc 32.0Vdc

DC21-24C0-5000 13.18mA 15.02mA 16.09mA 20.14mA 22.53mA

Typical DIN-A-MITE Current Draw:

1 2 3

+

VÅ (ac) Input:

4 to 20mAÎ (dc) Input: +

4.5 to 32VÎ (dc) Input: +

7

8

-

9

7

8

-

9

7

-

8

9
10
11

+

12

-

13
14
15
16

+

17

-

18
19
20

Note: Use tool Bourns
H91 to adjust

Signal Alarm

Zone

1

4 5 6

Adjustment

Potentiometers

Zone

2

Zone

Gain

Bias

Open

Heater

Limit

3

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10

WATLOW DIN-A-MITE Style C User's Manual

NOTE:
The potentiometer and
resistors are customer­supplied. For the
potentiometer control
assembly only, order
Watlow part number
08-5362.

ç

NOTE:
The potentiometer is
customer-supplied. For
the potentiometer only,
order Watlow part
number 08-5362.

Input Wiring

7
8

9
10
11
12
13
14
15
16
17
18
19
20

Signal Alarm

Gain

Bias

Open

Heater

Limit

Adjustment

Potentiometers

+

-

4 to 20mAÎ (dc) Input +

7
8
9

+

-

Linear voltage VÎ (dc) Input +

-

-

123

456

Zone

1

Zone

2

Zone

3

1kΩ

Potentiometer

7
8

9
10
11
12
13
14
15
16
17
18
19
20

1 2 3

4 5 6

Signal Alarm

Gain

Bias

Open

Heater

Limit

+

-

CW

Adjustment

Potentiometers

Counterclockwise

Clockwise

Zone

1

Zone

2

Zone

3

1kΩ Potentiometer Input

Use with 0 to 5VÎ (dc) Input

4 to 20mA and Linear Voltage Input

ç
Ó

1

Ó

3

(For models DC [1, 2, 3] _ - _ _ [L, P, S] _ - _ _ _ _)

Auto and Manual Input Application

4 to 20mA Î
(dc) signal
from the
temperature
controller

1kΩ

Potentiometer

0 to 5VÎ (dc)
signal
from the
temperature
controller

Clockwise

Counterclockwise

When you use the 4 to 20 mAÎ (dc) temperature
controller output and the DIN-A-MITE control
input 1 to 5VÎ (dc).

200Ω resistor

250Ω

1kΩ

Potentiometer

Clockwise

Manual

Auto

Auto

Manual

If you use the 0 to 5VÎ (dc) temperature controller
output, order the DIN-A-MITE control input
0 to 5VÎ (dc).

7
8

9
10
11
12
13
14
15
16
17
18
19
20

1 2 3

4 5 6

Signal Alarm

Gain

Bias

Open

Heater

Limit

Adjustment

Potentiometers

+

-

CW

7
8
9

+

-

CW

-

+

Zone

1

Zone

2

Zone

3

Counterclockwise

ç
Ó

1

Ó

3

(For models DC [1, 2, 3] _ - _ _ [L, P, S] [3, 4] - _ _ _ _ )

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WATLOW DIN-A-MITE Style C User's Manual

11

Current

Transformer

(CT)

Heater

Load Wire

7
8

9
10
11
12
13
14
15
16
17
18
19
20

1 2 3

4

Signal Alarm

Gain

Bias

Open

Heater

Limit

+

-

CT1

CT1

Adjustment

Potentiometers

Input Signal: +

-

Zone

1

Zone

2

Zone

3

5

6

Input Wiring Phase Angle with Current Limit

The DC1 _ - _ _ L _ - 0 _ _ _ model is a phase angle-controller that can
limit the maximum current to the load. A potentiometer on the DIN-A­MITE adjusts the current limit setting. Use the following steps to
adjust the current limit on initial setup. The purpose of the procedure
is to bring the power to the load slowly so that the desired maximum
current to the load is not exceeded before the current limit is adjusted.

NOTE: The DIN-A-MITE is shipped factory-calibrated with the potentiometer
adjusted fully clockwise (no current limiting). Adjust the potentiometer clockwise
to increase the current; counterclockwise to decrease the current.

NOTE: A short overcurrent through the load may occur, as the circuitry detects the
high current, if the input signal from the temperature controller is abruptly
increased.

1. Attach a clamp-on ammeter to the load line.

2. Adjust the current limit potentiometer fully counterclockwise (for
minimum current flow).

3. Turn the temperature controller on and adjust the input signal to
the DIN-A-MITE for zero percent power.

4. Turn on the power to the DIN-A-MITE.

5. Gradually increase the input signal.

6. Adjust the current limit potentiometer clockwise until the current to
the load is measurable. The current limit indicator (Zone 3) light
should turn on until the output is allowed to go full on, with no
limit. At that point, the indicator light will turn off.

7. Gradually increase the input signal to 100% power, then adjust the
current limit potentiometer to obtain the desired maximum current
to the load.

Ó

1

WARNING:
Use National Electric (NEC)
or other country-specific
standard wiring practices to
install and operate the DIN­A-MITE. Failure to do so may
result in damage to
equipment and property,
and/or injury or loss of life.

Ó

2

WARNING: Wiring examples
show L2 in phase-to-phase,
200VÅ (ac) and above
configuration. In phase-to­neutral, 100VÅ (ac) and
above applications, L2 is
neutral and must not be
fused or switched. Failure to
follow this guideline could
result in personal injury or
death.

Ó

3

WARNING:
Only authorized and qualified
personnel should be allowed
to install and perform
preventive and corrective
maintenance on this unit.
Failure to follow this
guideline could result in
damage to equipment, and
personal injury or death.

NOTE:
The alarm options are not
available with phase angle
units.

Current Limit Adjustment Procedure

ç
Ó

1

(Model DC1 _ - _ _ L [0, 1, 2, 3, 4, 5] - _ _ _ _ )
Linear current and linear voltage input

The Zone 3
indicator light
serves as the
current-limit
indicator in
phase-angle,
current-limit
models.

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12

WATLOW DIN-A-MITE Style C User's Manual

Alarm Relay

or Indicator

V~

120 or 240V~

@ 300mA maximum

energizes on alarm

1A

7
8

9
10
11
12
13
14
15
16
17
18
19
20

1 2 3

4

Signal Alarm

Gain

Bias

Open

Heater

Limit

+

-

+

-

+

-

ALM

ALM

CT1

CT1

CT2

CT2

CT3

CT3

Adjustment

Potentiometers

Triac

Zone

1

Zone

2

Zone

3

ALM = Alarm
CT = Current Transformer

Current

Transformer

(CT)

Heater

Load Wire

5

6

Single-phase Alarm

Non-latching Alarm Option
DC _ _ - _ _ _ _ - [H, S] _ _ _

NOTE:If you plan to wire
multiple DIN-A-MITE
alarm outputs, you need
to include an
intermediate relay for
each DIN-A-MITE used.

The Watlow DIN-A-MITE alarm option provides
a common alarm output for open-heater or
shorted SCR conditions. This is a non-latching

alarm.

• A shorted SCR alarm is detected when there is
no command signal and a load current is
detected. The alarm output is then energized.

• An open-heater or partial open-heater state is
detected when a command signal is present and
a reduced or no output current is detected. The
alarm output is then energized.

Setup Procedure for Open-Heater Alarm

(For Input Control Signal type S option only)

1. With the temperature control wired to the
DIN-A-MITE SCR power control, set the
temperature control output to “full on” (20mA
for 4 to 20mA output, or 5V for 0 to 5V output).

2. Adjust the open heater alarm adjustment
potentiometer until the alarm indicator light on
the front panel is full on, with no intermittent
cycling.

3. Slowly adjust the potentiometer until the
open heater indicator light just turns full off,
with no intermittent cycling.

If you are getting false alarms, the adjustment is
probably set too sensitive and should be re­adjusted towards the off condition of the open­heater indicator light. The open heater pot is
adjusted counter clockwise to increase
sensitivity to open heater detect (red light on
sooner) or clockwise to desensitize to open
heater detect (red light on later).

No setup procedure required for shorted SCR alarm.

Load Current -

Single phase load
wire passes through
one CT. Number of
passes through CT:

5 to 9A 2
10 to 65A 1

T1

T2

T3

7
8

9
10
11
12
13
14
15
16
17
18
19
20

Gain

Bias

Open

Heater

Limit

+

-

+

-

+

-

ALM

ALM

CT1

CT1

CT2

CT2

CT3

CT3

Adjustment

Potentiometers

Signal Alarm

4 5 6

1 2 3

Zone

1

Zone

2

Zone

3

ALM = Alarm
CT = Current Transformer

Heater

Current Transformers

white

black

3-phase, 2-leg Open Heater Alarm

NOTE:

Load wires must pass
through each current
transformer in the same
direction.

(Model DC2 _ - _ _ S _ - H _ _ _ )

ç
Ó

1

Ó

3

ç
Ó

1

Ó

3

Load Current -

3-phase 2-leg load wire
passes through 2 CTs.
Number of passes
through each:

5 to 6A 7
7 to 9A 6
10 to 14A 4
15 to 19A 3
20 to 33A 2
34A and up 1

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WATLOW DIN-A-MITE Style C User's Manual

13

Fan-Cooled

ç
Ó

1

Ó

3

7
8

9
10
11
12
13
14
15
16
17
18
19
20

Gain

Bias

Open

Heater

Limit

+

-

+

-

+

-

ALM

ALM

CT1

CT1

CT2

CT2

CT3

CT3

Adjustment

Potentiometers

Signal Alarm

4 5 6

1 2 3

Zone

1

Zone

2

Zone

3

ALM = Alarm
CT = Current Transformer

T1

T2

T3

Heater

Current

Transformers (CT)

CT

black

white

white

black

white

Neutral

3-phase, 3-leg Alarm, Shorted SCR and Open Heater Alarm

ç

NOTE:
Adjust the potentiometer
clockwise to increase the
current; counterclockwise to
decrease the current.

Ó

1

WARNING:
Use National Electric (NEC)
or other country-specific
standard wiring practices to
install and operate the DIN­A-MITE. Failure to do so
may result in damage to
equipment and property,
and/or injury or loss of life.

Ó

3

WARNING:
Only authorized and
qualified personnel should
be allowed to install and
perform preventive and
corrective maintenance on
this unit. Failure to follow
this guideline could result in
damage to equipment, and
personal injury or death.

NOTE:
The shorted SCR alarm
option is not available with
phase angle units.

Torque Guidelines

• Properly torque line and
load terminals to 2.7 Nm (24
in-lb).

• Retorque after 48 hours to
minimize wire cold flow.

• Retorque line and load
terminals every 3 to 6
months.

ç
Ó

1

Ó

3

3-phase, 2-leg Shorted SCR Alarm

(Model DC2 _ - _ _ [C, F, K, S] _ - S _ _ _ )

(Model DC3 _ - _ _ _ _ - [S, H] _ _ _ )

T1

T2

T3

7
8

9
10
11
12
13
14
15
16
17
18
19
20

Gain

Bias

Open

Heater

Limit

+

­+

­+

-

ALM

ALM

CT1

CT1

CT2

CT2

CT3

CT3

Adjustment

Potentiometers

Signal Alarm

4 5 6

1 2 3

Zone

1

Zone

2

Zone

3

ALM = Alarm
CT = Current Transformer

Heater

ç
Ó

1

Ó

3

Shorted SCR Alarm Only

NOTE:

Cooling fan terminals:

Quick connect 1/8" push on,
#16-14 AWG

Amp part no. 640929-1 or
equivalent

45

6

15

16

Current

Transformer (CT)

Neutral

T3

T2

T1

1 2 3

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Fan power required
24VÎ (dc)
115V~ (ac)
240V~ (ac)
(customer supplied)

Black wire (-)

24VÎ (dc)

Red wire (+)

Phase to neutral

L1
L2

Phase to phase

L1
L2

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7

8

9
10
11
12
13
14
15
16
17
18
19
20

+

-

CT1

CT1

Signal Alarm

Zone

1

4 5 6

Adjustment

Potentiometers

Zone 2Zone

Gain

Bias

Open

Heater

Limit

3

14

WATLOW DIN-A-MITE Style C User's Manual

ç

Ó

1

WARNING:
Use National Electric
(NEC) or other country­specific standard wiring
practices to install and
operate the DIN-A-MITE.
Failure to do so may result
in damage to equipment
and property, and/or injury
or loss of life.

Ó

2

WARNING:
Wiring examples show L2
in phase-to-phase, 200VÅ
(ac) and above
configuration. In phase-to­neutral, 100VÅ (ac) and
above applications, L2 is
neutral and must not be
fused or switched. Failure
to follow this guideline
could result in personal
injury or death.

Ó

3

WARNING:
Only authorized and
qualified personnel should
be allowed to install and
perform preventive and
corrective maintenance on
this unit. Failure to follow
this guideline could result
in damage to equipment,
and personal injury or
death.

Torque Guidelines

• Properly torque line and
load terminals to 2.7 Nm
(24 in-lb).

• Retorque after 48 hours
to minimize wire cold flow.

• Retorque line and load
terminals every 3 to 6
months.

Single-phase Output

ç
Ó

1

Ó

2

Ó

3

3-phase, 2-leg Output

ç
Ó

1

Ó

2

Ó

3

(Model DC1 _ - _ _ _ _ - _ _ _ _ )

(Model DC2 _ - _ _ _ _ - _ _ _ _ )

Semiconductor Fuse

1 2 3

+

7

-

8

+

9

-

10

+

11

-

12

ALM

13

ALM

14

CT1

15

CT1

16

CT2

17

CT2

18

CT3

19

CT3

20

Signal Alarm

Zone

1

4 5 6

Zone

Internal Busbar

Zone

3

2

Gain

Bias

Open

Heater

Limit

Limit Control

Contacts

(if required)

Adjustment

Potentiometers

Heater

Phase-to-phase
200V~ (ac)
and above

L1

L2

Phase-to-neutral
100V~ (ac)
and above

L1

Neutral

1 2 3

+

7

-

8

+

9

-

10

+

11

-

12

ALM

13

ALM

14

CT1

15

CT1

16

CT2

17

CT2

18

CT3

19

CT3

20

Internal Busbar

Signal Alarm

Zone

Zone

Zone

2

1

4 5 6

3

Semiconductor Fuses

Adjustment

Gain

Potentiometers

Bias

Open

Heater

Limit

Limit Control

Contacts

(if required)

L1

L2

L3

T3

Heater

T2

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T1

WATLOW DIN-A-MITE Style C User's Manual

15

Neutral

Limit Control

Contacts

(if required)

Semiconductor Fuses

L2

L1

L3

7
8

9
10
11
12
13
14
15
16
17
18
19
20

Gain

Bias

Open

Heater

Limit

+

-

+

-

+

-

ALM

ALM

CT1

CT1

CT2

CT2

CT3

CT3

Adjustment

Potentiometers

Signal Alarm

4 5 6

1 2 3

Zone

1

Zone

2

Zone

3

Heater

3-phase, 3-leg Output, Four Wire Wye

ç
Ó

1

Ó

2

Ó

3

Heater

2

Heater

3

Heater

1

L2

L2

L2

Limit Control

Contacts

(if required)

Semiconductor

Fuses

L1

L1

L1

Line

Voltage

3 Independent,

Single-Phase Heaters

7
8

9
10
11
12
13
14
15
16
17
18
19
20

Gain

Bias

Open

Heater

Limit

+

-

+

-

+

-

ALM

ALM

CT1

CT1

CT2

CT2

CT3

CT3

Signal Alarm

4 5 6

1 2 3

Zone

1

Zone

2

Zone

3

3-zone

Multizone Output Wiring

2-zone

(For models DC [8, 9] _

- _ _ [C, K] _

- 0 _ _ _

Ó

1

Ó

2

Ó

3

NOTE:
Independent loads do
not have to be on the
same phase.

(Model DC3 _ - _ _ _ _ - _ _ _ _ )

NOTE:

Do not exceed 80 amps on
center leg.

1 2 3

Signal

Zone

1

4 5 6

L2

Semiconductor

Alarm

Zone

Gain

Bias

Open

Heater

Limit

3

Zone

2

2 Independent,

Single-Phase

Heaters

L2

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Fuses

Limit Control

Contacts

(if required)

Line

Voltage

L1

L1

+

7

-

8

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+

9

-

10

+

11

-

12

ALM

13

ALM

14

CT1

15

CT1

16

CT2

17

CT2

18

CT3

19

CT3

20

16

WATLOW DIN-A-MITE Style C User's Manual

ç

Ó

1

WARNING:
Use National Electric (NEC)
or other country-specific
standard wiring practices to
install and operate the DIN­A-MITE. Failure to do so may
result in damage to
equipment and property,
and/or injury or loss of life.

Ó

2

WARNING:
Wiring examples show L2 in
phase-to-phase, 200 VÅ (ac)
and above configuration. In
phase-to-neutral, 100 VÅ
(ac) and above applications,
L2 is neutral and must not be
fused or switched. Failure to
follow this guideline could
result in personal injury or
death.

Ó

3

WARNING:
Only authorized and qualified
personnel should be allowed
to install and perform
preventive and corrective
maintenance on this unit.
Failure to follow this
guideline could result in
damage to equipment, and
personal injury or death.

NOTE: If you plan to wire
multiple DIN-A-MITE alarm
outputs, you need to include
an intermediate relay for
each DIN-A-MITE used.

System Wiring Example

Alternative Latching Alarm Circuit

If there is a need for a latching alarm in the case of an open heater or
shorted SCR, the DIN-A-MITE alarm circuit could be used as shown in
the latching alarm example at right. If the DIN-A-MITE triac alarm
output energizes, it will energize the RY1 (external alarm relay)
mechanical relay coil. Once the RY1 coil is energized it will latch on (via
the RY1A normally open contact) until the power to the relay is
removed. You could cycle the power via a reset switch. The RY1B
contact set can be used for alarm signaling.

L3

480VÅ
(ac)

AC Common

CR1 = High-Limit Contactor

L2

L1

Quencharc

CR1

Coil

Controller TC

High Limit TC

Breaker

-

F1

G1

+

H1

T1

S1

R1

PM6C2FA - ALAJAAA

L4

K4

T2

S2

R2

480V~ (ac)

120V~ (ac)

To DIN-A-MITE C

Pin 7+, 8- (page 17)

98

99

CC

CA

CB

B5

D6

D5

AC High

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WATLOW DIN-A-MITE Style C User's Manual

17

Ungrounded Delta or Wye Load 3-phase, 2-leg DIN-A-MITE

NOTE: The current transformers must be in the controlled legs on a 2-leg DIN-A-MITE. The
load wires must pass through the current transformers in the same direction.

Non-latching Alarm Option
(models DC_ _ -

_ _ S _ - H _ _ _ )

Open Heater and Shorted SCR Alarm

The shorted SCR detector compares the input
command signal and actual load current. If
load current is present without an input signal
then the shorted SCR alarm will energize a
triac (on board the DIN-A-MITE) output.

An open-heater or partial open-heater state is
detected when a command signal is present
and a reduced or no output current is detected.
The alarm output is then energized.

This is a non-latching alarm. This output can
be used to drive various indication devices,
such as a coil, light, buzzer, etc. See the
alternative latching circuit section below.

Contactor (CR1)

Semiconductor

From Temperature Control
Pin F1+, H1- (page 16)

Alarm Relay

V~

(ac)

120 or 240V~ (ac)
@ 300mA maximum
energizes on alarm

or Indicator

1A

High-limit

Fuses

7

8

9
10
11
12
13
14
15
16
17
18
19
20

1 2 3

+

-

+

-

+

-

ALM

ALM

CT1

DC20-48S0-H000

CT1

CT2

CT2

CT3

CT3

Potentiometers

DIN-A-MITE

2-Leg

Signal Alarm

Zone 2Zone

Zone

1

4 5 6

black

Adjustment

3

white

Gain

Bias

Open

Heater

Limit

Current

Transformers

6

54

Ungrounded

Wye Load

Delta
Load

Triac

13

14

Reset Switch

RY1B

L1

RY1A

(External alarm relay
contacts, set A)

RY1
Coil

VÅ

L2

Latching Alarm Relay Circuit

(External alarm relay
contacts, set B)

Normally open

Common

Normally closed

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18

WATLOW DIN-A-MITE Style C User's Manual

DIN-A-MITE®“C” Power Controller

WATLOW Electric Manufacturing Company
1241 Bundy Blvd. Winona, MN 55987 USA

Declares that the following products:

Designation: DIN-A-MITE

®

“C” Power Control

Model Numbers: DC(1, 2, 3, 8 or 9)(0, 1, 2, 3 or T) – (02, 12, 20, 24, 27, 40, 48 or 60) (CX, K1, K2, K3, FX, SX) -

(0, H or S)(followed by any 3 numbers or letters) X = any number 0 - 9

Classification: Power Control, Installation Category III, Pollution degree 2, IP20

Rated Voltage: 24 to 600 V

~ (ac), 50 or 60 Hz

Meets the essential requirements of the following European Union Directives by using the relevant standards show
below to indicate compliance.

2004/108/EC Electromagnetic Compatibility Directive

EN 61326-1: 2013 Electrical equipment for measurement, control and laboratory use - EMC

requirements (Industrial Immunity, Class A

1,2,4

Emissions) Not for use in a Class B

environment without additional filtering.

EN 61000-4-2:2009 Electrostatic Discharge Immunity

EN 61000-4-3:2010 Radiated Field Immunity 10V/m 80 MHz- 1GHz, 3V/m 1.4GHz-2.7GHz

EN 61000-4-4:2012 Electrical Fast-Transient / Burst Immunity

EN 61000-4-5:2006 Surge Immunity (Reviewed to IEC 61000-4-5 2014)

EN 61000-4-6:2014 Conducted Immunity

EN 61000-4-11:2004 Voltage Dips, Short Interruptions and Voltage Variations

EN 61000-3-2:2009 Harmonic Current Emissions (Reviewed to IEC 61000-3-2 2014)

EN 61000-3-3:2013 Voltage Fluctuations and Flicker

3

≤ 16A

EN 61000-3-11:2000 Voltage Fluctuations and Flicker

≤ 75A with conditional connection

NOTES

1

Use of an external filter is required to comply with conducted emissions limits. See note 4 below.

2

A Line Impedance Stabilization Network (LISN) was used for conducted emissions measurements.

3

To comply with flicker requirements, command signal models FX and SX will require a reduced source impedance.
Cycle time on ON/OFF models CX, and K1, K2, K3 may need to be up to 175 seconds at 16A or have a reduced
source impedance.

2006/95/EC Low-Voltage Directive

EN 50178:1997 Electronic equipment for use in power installations.

Per 2012/19/EU W.E.E.E Directive Please Recycle Properly.

Compliant with 2011/65/EU RoHS2 Directive

4

Required External EMI Filters for DIN-A-MITE with More Than 6 Amp Loads

An external ElectroMagnetic Interference (EMI) filter must be used in conjunction with the DIN-A- MITE for loads in
excess of six amperes (6A) at 150 to 250 KHz. Watlow has verified that a tank filter will suppress EMI created by SCR
power controllers to comply with the conducted emissions limits.

ISO 9001since 1996.

Declaration of Conformity

DIN-A-MITE EMI Filters

Description Crydom Filter Watlow Filter

Single-phase, 230VÅ (ac)

1F25 14-0019

Three-phase, 440VÅ (ac)

3F20 14-0020

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WATLOW DIN-A-MITE Style C User's Manual

19

ç WARNING: Tank filters may suppress desirable communications carried on power lines in

the 150 to 250 KHz region. The filters may suppress carrier current such as that used for
infant monitors and medical alert systems. Verify that suppressed carrier current or other
desirable communications on power lines creates no hazard to people or property. Failure
to observe this warning could result in damage to property, and or injury to death for
personnel.

ç WARNING: All filter installation and wiring must be performed by qualified personnel and

conform to local and national electrical codes.

In-line power filters have been shown to properly suppress EMI; however, these filters must be
rated for the entire load current and are generally more expensive than the tank filter specified.
An In-line filter may be required if carrier current communications are used on site.

Joe Millanes

Winona, Minnesota, USA

Name of Authorized Representative Place of Issue

Director of Operations September 2014
Title of Authorized Representative Date of Issue

Signature of Authorized Representative

T1

T2

T3

7

8

9
10
11
12
13
14
15
16
17
18
19
20

Gain

Bias

Open

Heater

Limit

+

­+

­+

-

ALM

ALM

CT1

CT1

CT2

CT2

CT3

CT3

Signal Alarm

Internal Busbar

4 5 6

1 2 3

Zone

1

Zone

2

Zone

3

Heater

Alternate

L1

Semiconductor

Fuses

Filter

5A

5A

5A

L3

L2

Limit Control

Contacts

(if required)

Tank Filter, Three Phase, 440V

Tank Filter, Single Phase, 230V

Semiconductor

Fuse

5A

Filter

1 2 3

+

7

-

8

+

9

-

10

+

11

-

12

ALM

13

ALM

14

CT1

15

CT1

16

CT2

17

CT2

18

CT3

19

CT3

20

Signal Alarm

Zone

1

4 5 6

Zone

Internal Busbar

Zone

3

2

Open

Heater

Limit

Gain

Bias

Limit Control

Contacts

(if required)

Adjustment

Potentiometers

Heater

Phase-to-phase
200V~ (ac)
and above

L1

L2

Phase-to-neutral
100V~ (ac)
and above

L1

Neutral

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20

WATLOW DIN-A-MITE Style C User's Manual

The Watlow DIN-A-MITE is warranted to be
free of defects in material and workmanship for
36 months after delivery to the first purchaser
for use, providing that the units have not been
misapplied. Since Watlow has no control over
their use, and sometimes misuse, we cannot
guarantee against failure. Watlow's obligations
hereunder, at Watlow's option, are limited to
replacement, repair or refund of purchase price,
and parts which upon examination prove to be
defective within the warranty period specified.
This warranty does not apply to damage
resulting from transportation, alteration,
misuse, abuse or improper fusing.

ReturnsWarranty

1.

• Ship to address

• Bill to address

• Contact name

• Phone number

• Method of return shipment

• Your P.O. number

• Detailed description of the problem

• Any special instructions

• Name and phone number of the person
returning the product

2. Prior approval and an RMA number, from
the Customer Service Department, is
required when returning any unused
product for credit. Make sure the RMA
number is on the outside of the carton, and
on all paperwork returned. Ship on a
Freight Prepaid basis.

3. After we receive your return, we will
examine it and try to verify the reason for
the return.

4. In cases of manufacturing defect, we will
enter a repair order, replacement order or
issue credit for material returned.

5. To return products that are not defective,
goods must be in new condition, in the
original boxes and they must be returned
within 120 days of receipt. A 20 percent
restocking charge is applied for all returned
stock controls and accessories.

6. If the unit is unrepairable, it will be
returned to you with a letter of explanation.

7. Watlow reserves the right to charge for no
trouble found (NTF) returns.

The DIN-A-MITE C User’s Manual is
copyrighted by Watlow, Inc., © January
2015, with all rights reserved.

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