DUB01,PUB01 Datasheet by Carlo Gavazzi Inc.

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Specifications are subject to change without notice (08.06.10) 1
Monitoring Relays
Product Description Ordering Key
Item number
Power supply
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)
or 36 mm plug-in module (PUB01)
LED indication for relay, alarm and power supply ON
Input (voltage level)
DUB01 Terminals Y1, Y2
PUB01 Terminals 5, 7
Measuring ranges
Direct Int. resist. Max. volt.
Selectable by DIP-switches
..10V: 0.1 to 1 V AC/DC >200 k100 V
0.2 to 2 V AC/DC >200 k100 V
0.5 to 5 V AC/DC >200 k100 V
1to 10 V AC/DC >200 k100 V
Max. voltage for 1 s 200 V
..500V: 2to 20 V AC/DC >500 k350 V
5to 50 V AC/DC >500 k350 V
20 to 200 V AC/DC >500 k600 V
50 to 500 V AC/DC >500 k600 V
Max. voltage for 1 s 1000 V
The input voltage cannot
raise over 300 VAC/DC
with respect to ground
(PUB01 only)
1-Phase True RMS AC/DC Over or Under Voltage
Types DUB01, PUB01
Input Specifications
DUB 01 C B23 10V
DUB01 and PUB01 are pre-
cise TRMS AC/DC over or
under voltage (selectable by
DIP-switch) monitoring
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
Type Selection
Mounting Output Measuring range Supply: 24 to 48 VAC/DC Supply: 115/230 VAC
DIN-rail SPDT 0.1 to 10 V AC/DC DUB 01 C D48 10V DUB 01 C B23 10V
2to 500 V AC/DC DUB 01 C D48 500V DUB 01 C B23 500V
Plug-in SPDT 0.1 to 10 V AC/DC PUB 01 C D48 10V PUB 01 C B23 10V
2to 500 V AC/DC PUB 01 C D48 500V PUB 01 C B23 500V
Contact input
DUB01 Terminals Z1, Y1
PUB01 Terminals 8, 9
Disabled > 10 k
Enabled < 500
Latch disable > 500 ms
2Specifications are subject to change without notice (08.06.10)
DUB01, PUB01
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
It releases when the voltage
drops below (or exceeds)
the set level (see hysteresis
setting), or when power sup-
ply is interrupted.
Example 2
(connection between termi-
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 morethan
the set delay time.
Provided that the voltage
has dropped below (or has
exceeded) the set point (see
hysteresis setting) the relay
releases when the intercon-
nection between terminals
Z1, Y1 or 8, 9 is interrupted,
or power supply is interrupt-
ed 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).
When the inhibit contact is
opened, if the input signal is
already in alarm position, the
delay time needs to elapse
before relay activation.
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)
D48: 24 to 48 VAC/DC ± 15%
45 to 65 Hz, insulated
B23: 115/230 VAC ± 15%
45 to 65 Hz, insulated
Dielectric voltage DC supply AC supply
Supply to input 2 kV 4 kV
Supply to output 4kV 4kV
Input to output 4 kV 4 kV
Rated operational power
DC 3 W
Supply Specifications
Power ON delay 1 s ± 0.5 s or 6 s ± 0.5 s
Reaction time (input signal variation from
-20% to +20% or from
+20% to -20% of set value)
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
Power supply ON LED, green
Alarm ON LED, red (flashing 2 Hz
during delay time)
Output relay ON LED, yellow
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%
Dimensions DUB01 22.5 x 80 x 99.5 mm
PUB01 36 x 80 x 94 mm
Material PA66 or Noryl
Weight Approx. 150 g
Screw terminals
Tightening torque Max. 0.5 Nm
acc. to IEC 60947
Product standard EN 60255-6
Approvals UL, CSA
CE Marking L.V.Directive 2006/95/EC
EMC Directive 2004/108/EC
Immunity According to EN 60255-26
According to EN 61000-6-2
Emissions According to EN 60255-26
According to EN 61000-6-3
General Specifications
Output SPDT relay
Rated insulation voltage 250 VAC
Contact ratings (AgSnO2)µ
Resistive loads AC 1 8 A @ 250 VAC
DC 12 5 A @ 24 VDC
Small inductive loads AC 15 2.5 A @ 250 VAC
DC 13 2.5 A @ 24 VDC
Mechanical life 30 x 106operations
Electrical life 105operations
(at 8 A, 250 V, cos ϕ=1)
Operating frequency 7200 operations/h
Dielectric strength
Dielectric voltage
2kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
Output Specifications
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Specifications are subject to change without notice (08.06.10) 3
DUB01, PUB01
Adjust the input range set-
ting the DIP switches 1 and
2as shown below.
Select the desired function
setting the DIP switches 3 to
6as shown below.
To access the DIP switches
open the grey plastic cover
as shown below.
Selection of level and time
Upper knob:
Setting of hysteresis on rela-
tive scale: 0 to 30% on set
Centre knob:
Voltage level setting on rela-
tive scale: 10 to 110% on
full scale.
Lower knob:
Setting of delay on alarm
time on absolute scale (0.1
to30 s).
Function/Range/Level and Time Delay Setting
Relay working mode
ON: Normally De-Energized
OFF: Normally Energized
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
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
Operation Diagrams
Over voltage - N.D. relay
Under voltage - N.D. relay
Under voltage - Latch function - N.D. relay
Over voltage - Inhibit function - N.D. relay
CARLO GAVAZZI Example 1 Exa mple 2 Lamumm Example 2 225 995 an
4Specifications are subject to change without notice (08.06.10)
DUB01, PUB01
DIN-rail Plug-in
Wiring Diagrams
24÷48 VAC/DC
230 VAC 115VAC
24÷48 VAC/DC
230 VAC 115VAC
24÷48 VAC/DC
230 VAC 115VAC
24÷48 VAC/DC
230 VAC 115VAC

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