Gefran W211 Data Sheet

PROFILE

Wattcor W211 line offers a wide range of
solid state power controllers with “zero
crossing” switching for resistive loads
with current ratings up to 600A and
660Vac nominal voltages.
The models of the W211 series accept
Vdc and Vac logic controls. The
conduction is activated by the control
signal at the first zero crossing of the
load power voltage. Switching off occurs
by the first zero crossing of the load
current after disabling the control signal.
The control of three-phase loads can be
by two or three W211 in series and fired
in parallel. Each model is equipped with
a logic input to disable the solid state
relay/power controller and eventually
break off power supply. Different options
are available for the more critical
applications, such as the “load control”
(RPC option) which detects and indicates
partial load failure interruption/cut-off,
with a LED on the faceplate, and a relay
alarm output. The DTC option allows the
control of a possible SCR short-circuit or
the complete current failure in the load. A
further safety option is represented by
the “electronic cut-off” circuit, (DE
option), a device protecting the power
element against a momentary excess

current higher than a selected value,
corresponding to approx. 13 times the
nominal current of the solid state power
controller. The alarm condition disables
the power supply, activates an alarm
relay (in common with RPC option) and
allows the instrument resetting through a
front button. The WATTCOR W211 series
are designed to guarantee nominal
current and voltage values at 50°C
ambient temperature, with a working
temperature range from -5°C up to 60°C.
250A and 600A units are supplied with
internal fuse and digital output for the
fuse status. Signal connections are made
via “plug-in” connectors to enable easy
wiring.
The instrument can be DIN rail or panel
mounted (from 250 up to 600A current
ratings, panel mounting only).

TECHNICAL DATA

General Features

Nominal working voltage

- 660Vac (max. range 20...725Vac)
Nominal frequency: 50/60Hz

Current Ratings (50°C)

W211 (25-40-75-100-150-250-400-600A)

POWER CONTROLLERS, from 1KW to 400KW

Main Features

• Conduction inhibition input

• Overcurrent protection (DE option)

• Detection of partial load failure

(RPC option)

• SCR diagnosis circuit and complete
load failure (DTC option)

• Input control from Vdc and Vac
logic signal

• Zero crossing switching of mains
voltage

• High capacity anti-parallel SCR
double thyristor

• LED status indicators

• MOV protections (varistor)

• DIN rail or panel mounting

(depending on version)

Main Applications

• Industrial heat-treatment
furnaces

• Industrial cooling plants

• Painting plants

• Driers for ceramics, paper

and textile products

• Industrial heaters

• Ovens and furnaces

• Sterilizers

Repetitive Non repetitive

overcurrent overcurrent

(t=1s) (t=20ms)
25Arms ≤ 74A ≤ 600A
40Arms ≤ 100A ≤ 1500A
75Arms ≤ 180A ≤ 1700A
100Arms ≤ 300A ≤ 4800A
150Arms ≤ 300A ≤ 4800A
250Arms ≤ 450A ≤ 7800A
400Arms ≤ 2000A ≤ 15000A
600Arms ≤ 2000A ≤ 15000A

I2t for fusing Critical dv/dt

(t=1-10ms) with output

disactivated
25Arms ≤ 1800A2s 1000V/µs
40Arms ≤ 11200A2s 1000V/µs
75Arms ≤ 14450A2s 1000V/µs
100Arms ≤ 86200A2s 1000V/µs
150Arms ≤ 86200A2s 1000V/µs
250Arms ≤ 200000A2s 1000V/µs
400Arms ≤ 1125000A2s 500V/µs
600Arms ≤ 1125000A2s 500V/µs

Dissipated Power:

1.2 W per Amp of load

Control Input

• Two inputs available for Vdc and Vac
logic signals

• Option for control via contact free from
potential (option 4)

• Max. voltage-range:0...30Vdc, 0...32Vac

• Safety power-up voltage:< 3Vdc, <5Vac

• Safety power-off voltage: >5Vdc,≥15Vac

• Impedance: 1KW@5Vdc,

2.5KW@30Vdc,1.5KW for Vac

Inhibition Input

• Max. voltage range: 0...30Vdc

• Impedance: 15KW

• Active inhibition: ≥ 5Vdc

Auxiliary Power Supply

- Required only if an option or a fan have

been selected

• 115 or 230Vac 50...60Hz - 5VA with

phase independent of the voltage on the
load

- Fan power supply (for ratings ≥150A)

• 115 or 230Vac 50/60Hz - 35VA

Partial Load Failure Option (RPC)

• Detects a decrease in the load current
(in regard to a pre-selected value),
distinguishing one caused by a mains
voltage decrease. It is necessary to
specify the voltage applied to the load
(115 or 230 or 440Vac ± 10%)

• Current limit point selectable from 30%
up to 100% of nominal current (to be set
via a front trimmer).

• Min. working time to let the alarm start:
400ms

• Alarm output: relay with NO 5A-250Vac
working contact (shared by the DE
option).

SCR (DTC) Control and Complete
Load Failure Option

Detects current crossing in the load when
there is no control signal (SCR short­circuit).
Detects load current failure when a
control signal is active (complete load or
SCR failure/interruption, fuse break, load
voltage failure).
The alarm mode, with memory or not, is
selectable via an internal switch.

Overcurrent Protection Option (DE)

• Switching off with memory of the SCR if
current exceeds the nominal value by 13
times

• Option available for ratings from 25 up
to 150A

• Max. response time: 10ms@50Hz;

8.33ms@60Hz

• Alarm output: 5A-250V no contact relay
(shared by RPC option)

• Reset of standard working through a
front-face key

• This option does not replace extra-fast
fuses, which should be used in any
installation.

Installation Comments

It is necessary to install the instrument
correctly inside the panel to ensure best
reliability:

• Max. inclination as to the vertical axis:
10°

• Vertical distance between two
instruments: > 200mm

• Horizontal distance between two
instruments: > 20mm

POWER DISSIPATION CURVES

TYPE OF FUNCTIONING

Ratings from 25 up to 150A:

- DIN rapid rail mounting

- Panel mounting kit for ratings 75-150A (option 1886001)

MOUNTING

Ambient Temperature Ambient Temperature

Effective current A

Effective current A

Control signal

Load current

Ratings from 250 to 600A:

- Panel mounting only

Rating 600A

Rating 400A

Rating 250A

Rating 150A

Rating 100A

Rating 75A

Rating 40A

Rating 25A

140

120

100

80

60

40

20

0°C10°C20°C30°C40°C50°C60°C

700

600

500

400

300

200

100

0°C10°C20°C30°C40°C50°C60°C

DIMENSIONS AND MOUNTING

W211

W211

W211

W211

W211

W211

Depth = 105 mm
Weight = 800g

W211 25A

66 mm

170 mm

235 mm

330 mm

355 mm

450 mm

170 mm

76 mm

76 mm

W211 40A W211 75A W211 100A (without fan)

W211 150A (with fan)

83 mm 83mm

66 mm

Depth = 120 mm
Weight = 1200g

Depth = 125 mm
Weight = 1700g

Depth = 160 mm
Weight W211 100A = 2300g / W211 150A = 2700g

Depth = 230 mm
Weight W211 400A = 10300g / W211 600A = 11000g

Depth = 230 mm
Weight = 6000g

Cover profile

Cover profile

4 fixing holes (ø 8mm)

4 fixing holes
(ø 8mm)

W211 250A

W211 400A
W211 600A

130 mm

LINE LINE

LINE LINE

LOADLOAD

LOADLOAD

175 mm

215 mm

LINE

LINE

LOAD

LOAD

Panel Mounting Kit

DIN rail mounting
bracket

2 fixing holes
(ø 6,5mm)
for panel

98 mm

83 mm

123456789

+

-

+

-

10 11 12 13 14 15 16 17 18

CONTROL SIGNAL CONNECTION

123456789

+

-

+

-

with DE, RPC, DE + RPC or DTC option

Without option

Control

0/30 VDC

Control

0/24 VAC

Inhibition

0/30 VDC

Thermal

Shutdown

Ratings

≥ 150A

Black or grey Terminal Strip

Control

0/30 VDC

Inhibition

0/30 VDC

Control 0/24 VAC

Green terminal strip with

DE, RPC or DTC Alarm Output

Load

voltage

(with RPC)

Thermal

Shutdown

Ratings

≥ 150A

+5 VDC

115 VAC

or

230 VAC

Black or grey Terminal Strip

Green Terminal Strip

with DE, RPC or DTC option

For further information see user’s manual

660Vac (range 20...725Vac)
(for RPC option with range 90...180Vac)

663

5 DTC

660Vac (range 20...725Vac)
(for RPC option with range 260...350Vac)

661

40Aac 40
75Aac 75
100Aac 100
150Aac 150
250Aac 250
400Aac 400
600Aac 600

ORDER CODE

This device conforms to European Union Directive 2004/108/CE and 2006/95/CE as amended with reference to generic standards:
EN 61000-6-2 (immunity in industrial environment) EN 61000-6-4 (emission in industrial environment) - EN 61010-1 (safety regula­tions).

W211

MODEL

W211

NOMINAL CURRENT

25Aac 25

NOMINAL VOLTAGE

660Vac (range 20...725Vac)
(if the RPC option is used, the working
range is 350...440Vac)

660

FUSE FAILURE

MICROSWITCH (≥ 250A)

0 None (≤250A)
1 Microswitch (≥250A)

AUXILIARY POWER SUPPLY

(for the options and ratings ≥150A)

0 None
1

115Vac 50...60Hz

2 230Vac 50...60Hz

OPTIONS

None

30RPC

0

SAFETY and PROTECTION

WIRING / TERMINALS

- Ground heatsink (except for models from 400 up to 600A)

- IP20 protection level

- UL94V0 self-extinguishing plastic case

- Thermostat for models with rating ≥150A

- Thyristor high I

2

t

- Extra fast fuses

Power Terminals

- Ratings from 25A to 150A: cage terminals for stripped cable without cable terminals

- Ratings from 250A to 600A: cables with terminal cable terminals or copper bar

Rating Fuses Fuse Rating Fuses Fuse

carrier switch

25A FUS-050 PF 22x58 250A FUS-450N /
40A FUS-063 PF 22x58 400A FUS-630N SW-FUS

75A FUS-100 PF 22x58 600A FUS-900N SW-FUS
100A FUS-250 PF 27x60
150A FUS-250 PF 27x60

660Vac (range 20...725Vac)
(for RPC option with range 180...260Vac)

662

Note: RPC option not available for working range >440Vac

Current ratings

25-40A

75-100-150

250-400-600

Usable cable section [mm2]

1,5 a 16

20 a 70

cables with terminal cable or copper bar

Tightening Torque [Nm]

1,2 a 1,4

6 a 7

12 a 13

Please, contact GEFRAN sales people for the codes availability.

GEFRAN spa reserves the right to make any kind of design or functional modification at any moment without prior notice

DTS_W211_0709_ENG