Datasheet DUB01, PUB01 Datasheet (Carlo Gavazzi)

Monitoring Relays
1-Phase True RMS AC/DC Over or Under Voltage
Types DUB01, PUB01

• TRMS AC/DC over or under voltage
monitoring relays

• Selection of measuring range by DIP-switches

• Measuring ranges from 0.1 to 500 V AC/DC

• Adjustable voltage on relative scale

• Adjustable hysteresis on relative scale
Adjustable delay function (0.1 to 30 s)

•
Programmable latching or inhibit at set level

•
Output: 8 A SPDT relay N.D. or N.E. selectable

•

• For mounting on DIN-rail in accordance with
DIN/EN 50 022 (DUB01) or plug-in module (PUB01)

• 22.5 mm Euronorm housing (DUB01)

UB01

D

PUB01

or 36 mm plug-in module (PUB01)

• LED indication for relay, alarm and power supply ON

Product Description Ordering Key

DUB01 and PUB01 are pre­cise TRMS AC/DC over or
under voltage (selectable by
DIP-switch) monitoring relays.
Owing to the built-in latch
function, the ON-position of
the relay output can be

maintained. Inhibit function
can be used to avoid relay
operation when not desired
(maintenance, transitions).
The LED's indicate the state
of the alarm and the output
relay.

Housing
Function
Type
Item number
Output
Power supply
Range

DUB 01 C B23 10V

Type Selection

Mounting Output Measuring range Supply: 24 VDC Supply: 48 VDC Supply: 24/48 VAC Supply: 115/230 VAC

DIN-rail SPDT 0.1 to 10 V AC/DC DUB 01 C 724 10V DUB 01 C 748 10V DUB 01 C B48 10V DUB 01 C B23 10V

Plug-in SPDT 0.1 to 10 V AC/DC PUB 01 C 724 10V PUB 01 C 748 10V PUB 01 C B48 10V PUB 01 C B23 10V

Input Specifications

Input

Voltage level DUB01: Terminals Y1, Y2

Measuring ranges

..10V:

..500V

Note:

The input voltage cannot
raise over 300 VAC/DC
with r
(PUB01 only)

Contact input

DUB01
PUB01
Disabled > 10 kΩ
Enabled
Latch disable

0.1 to 1 V AC/DC >200 kΩ 100 V

0.2 to 2 V AC/DC

0.5 to 5 V AC/DC
1 to 10 V AC/DC >200 kΩ 100 V

Max. voltage for 1 s 200 V

:

2 to 20 V AC/DC
5 to 50 V AC/DC >500 kΩ 350 V

20 to 200 V AC/DC >500 kΩ 600 V
50 to 500 V AC/DC >500 kΩ 600 V

Max. voltage for 1 s 1000 V

espect to gr

2 to 500 V AC/DC DUB 01 C 724 500V DUB 01 C 748 500V DUB 01 C B48 500V DUB 01 C B23 500V

2 to 500 V AC/DC PUB 01 C 724 500V PUB 01 C 748 500V PUB 01 C B48 500V PUB 01 C B23 500V

Output Specifications

Output SPDT relay

Rated insulation voltage 250 VAC

Contact ratings (AgSnO

Resistive loads AC 1 8 A @ 250 VAC

Small inductive loads AC 15 2.5 A @ 250 VAC

Mechanical life ≥ 30 x 106operations
Electrical life ≥ 10

Operating frequency ≤ 7200 operations/h
Dielectric str

Dielectric voltage
Rated impulse withstand volt.

ength

)µ

2

DC 12 5 A @ 24 VDC

DC 13 2.5 A @ 24 VDC

5

operations

(at 8 A, 250 V, cos ϕ = 1)

≥ 2 kVAC (rms)
4 kV (1.2/50

s)

µ

ound

PUB01: Terminals 5, 7

Internal resist. Max. volt.

>200 kΩ
>200 kΩ 100 V

Ω

>500 k

minals Z1, Y1

er

T

erminals 8, 9

T

Ω

< 500
> 500 ms

100 V

350 V

1

DUB01, PUB01

Supply Specifications

Power supply Overvoltage cat. III

Rated operational voltage (IEC 60664, IEC 60038)
through terminals:

A1, A2 or A3, A2 (DUB01)
2, 10 or 11, 10 (PUB01)

ielectric voltage DC supply AC supply

D

upply to input 2 kV 4 kV

S
Supply to output 4 kV 4 kV
Input to output 4 kV 4 kV

Rated operational power

AC 4 VA
DC 3 W

24: 24 VDC ± 20%, insulated

7

48: 48 VDC ± 20%, insulated

7

B48: 24/48 VAC ± 15%

B23: 115/230 VAC ± 15%

45 to 65 Hz, insulated

45 to 65 Hz, insulated

General Specifications

Power ON delay 1 s ± 0.5 s or 6 s ± 0.5 s

eaction time

R

Alarm ON delay < 100 ms
Alarm OFF delay < 100 ms

Accuracy (15 min warm-up time)

Temperature drift ± 1000 ppm/°C
Delay ON alarm ± 10% on set value ± 50 ms
Repeatability ± 0.5% on full-scale

Indication for

ower supply ON LED, green

P
Alarm ON LED, red (flashing 2 Hz

Output relay ON LED, yellow

Environment

Degree of protection IP 20
Pollution degree 3 (DUB01), 2 (PUB01)
Operating temperature -20 to 60°C, R.H. < 95%
Storage temperature -30 to 80°C, R.H. < 95%

Housing dimensions

DIN-rail version 22.5 x 80 x 99.5 mm
Plug-in version 36 x 80 x 94 mm

Weight Approx. 150 g
Screw terminals

Tightening torque Max. 0.5 Nm

Approvals UL, CSA (except 748)
CE Marking Yes
EMC

Immunity According to EN 61000-6-2
Emission According to EN 61000-6-3

input signal variation from

(

-20% to +20% or from
+20% to -20% of set value)

during delay time)

acc. to IEC 60947

Electromagnetic Compatibillity

Mode of Operation

DUB01 and PUB01 monitor
both AC and DC over or
under voltage.

Example 1

(no connection between ter
minals Z1, Y1 or 8, 9 - latch
function disabled)

The relay operates when the
measured value exceeds (or
drops below) the set level for
more than the set delay time.
It releases when the voltage

ops below (or exceeds) the

dr

2

-

set level (see hysteresis set­ting), or when power supply
is interrupted.

Example 2

(connection between ter
nals Z1, Y1 or 8, 9 - latch
function enabled)

The relay operates and latch­es in operating position
when the measured value
exceeds (or drops below) the
set level for more than the
set delay time.

mi-

Provided that the voltage
has dropped below (or has
exceeded) the set point (see
hysteresis setting) the relay
releases when the intercon­nection between ter
Z1, Y1 or 8, 9 is interr
or power supply is interrupt­ed as well.
The red LED flashes until the
delay time has expired or the
measured value has dropped
below the set point (see hys­teresis setting).

minals
upted,

Note

When the inhibit contact is
opened, if the input signal is
already in alarm position, the
delay time needs to elapse
befor

elay activation.

e r

DUB01, PUB01

Example 1

Example 2

L

N(-)

PE

µ

5

7

10 1

43

U

89

L

N(-)

PE

µ

5

7

10 1

43

U

89

24 VDC (+)

48/230 VAC

24/115 VAC

112

24 VDC (+)

48/230 VAC

24/115 VAC

112

Latch/inhibit

enable

Example 1

Example 2

L

N(-)

PE

µ

Z1

Y1

Y2

A1 A3

A2 15

16 18

U

L

N(-)

PE

µ

Z1

Y1

Y2

A1 A3

A2 15

16 18

U

24 VDC (+)

48/230 VAC

24/115 VAC

24 VDC (+)

48/230 VAC

24/115 VAC

Latch/inhibit

enable

Function/Range/Level and Time Delay Setting

Adjust the input range set-

ing the DIP switches 1 and

t

as shown below.

2

Select the desired function
setting the DIP switches 3 to
6 as shown below.

To access the DIP switches

pen the grey plastic cover

o

s shown below.

a

Selection of level and time

elay:

d

pper knob:

U

Setting of hysteresis on rela­tive scale: 0 to 30% on set
value.

Centre knob:

oltage level setting on rela-

V

ive scale: 10 to 110% on

t

ull scale.

f

Lower knob:

Setting of delay on alarm
time on absolute scale (0.1
to 30 s).

Measuring range

Model 500 V 10 V
ON OFF 20 V 1 V
OFF OFF 50 V 2 V
ON ON 200 V 5 V
OFF ON 500 V 10 V

Relay working mode

ON: Normally De-Energized
OFF: Normally Energized

Wiring Diagrams

24/48 VDC (+)

Power ON delay

ON: 6 s ± 0.5 s
OFF: 1 s ± 0.5 s

Contact input

ON: Latch function enable
OFF: Inhibit function enable

Monitoring function

ON: Over voltage
OFF: Under voltage

24/48 VDC (+)

DUB01

24/48 VDC (+)

24/48 VDC (+)

PUB01

3

Power supply

O

ver voltage Under voltage - Latch function

Under voltage

Power supply

Latch ON

Set Level

Relay ON

Red LED ON

Set Level

Relay ON

Red LED ON

P

ower supply

Red LED ON

Set Level

Hysteresis

Hysteresis

Hysteresis

R

elay ON

1

or 6 s

1 or 6 s

1 or 6 s

Over voltage - Inhibit function

Power supply

Inhibit ON

Set Level

R

elay ON

Red LED ON

Hysteresis

1 or 6 s

DUB01, PUB01

22.5

80

83.5

99.5

63

28.5

36

80

94

28.5

63

90

Operation Diagrams

Over voltage - N.D. relay

Under voltage - N.D. r

elay

Under voltage - Latch function - N.D. relay

Over voltage - Inhibit function - N.D. relay

Dimensions

DIN-rail

Plug-in

4