DUB71CB23500V CARLO GAVAZZI Selected parameters OUTPUT SIGNAL 1 relay SETPOINTS 1, adjustable MONITORED VAR.. View larger
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DUB71CB23500V CARLO GAVAZZI Selected parameters OUTPUT SIGNAL 1 relay SETPOINTS 1, adjustable MONITORED VAR..



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Selected parameters OUTPUT SIGNAL 1 relay SETPOINTS 1, adjustable MONITORED VARIABLE 1-phase AC/DC voltage monitoring Others SIZE 36 mm POWER SUPPLY RANGE 115/230 VAC MONITORING FUNCTION Over or under voltage MOUTING DIN-rail INPUT RANGE 500 V DELAY 1, adjustable

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Energy Meters Control Analizers


Monitoring Relays and Measurement Current Transformers

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Monitoring Relays
1-Phase True RMS AC/DCOver or Under Voltage
Type DUB71
• 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: 5 A SPDT relay N.D. or N.E. selectable
• For mounting on DIN-rail in accordance with
DIN/EN 50 022
• 35.5 mm DIN-rail housing
• LED indication for relay, alarm and power supply ON
Product DescriptionOrdering Key
DUB 71 C B23 10V
DUB71isapreciseTRMS AC/DCoverorundervolt- age (selectable byDIP- switch) monitoring relay. Owingtothebuilt-inlatch function, the ON-position of the relay output can be maintained.Inhibitfunction can be used to avoid relay
operation when notdesired (maintenance, transitions). The LED's indicate the state of the alarm and the output relay.
35.5 mm wide housing suit- able both for back and front panel mounting.
Housing Function Type
Item number
Power supply
Type Selection
MountingOutputMeasuring range Supply: 24/48 VAC Supply: 115/230 VAC
DIN-railSPDT 0.1 to 10 V AC/DC DUB 71 C B48 10V DUB 71 C B23 10V
DIN-railSPDT 2 to 500 V AC/DCDUB 71 C B48 500V DUB 71 C B23 500V
Input (voltage level)Terminals Y1, Y2
Measuring ranges
Direct Internal resist. Max. volt.
Selectable by DIP-switch
..10V: 0.1 to 1 V AC/DC >120 kΩ100 V
0.2 to 2 V AC/DC >120 kΩ100 V
0.5 to 5 V AC/DC >120 kΩ100 V
1 to 10 V AC/DC >120 kΩ100 V Max. voltage for 1 s 200 V
..500V: 2 to 20 V AC/DC 500 kΩ350 V
5 to 50 V AC/DC 500 kΩ350 V
20 to 200 V AC/DC 500 kΩ600 V
50 to 500 V AC/DC 500 kΩ600 V Max. voltage for 1 s1000 V
Contact inputTerminals Z1, Y1
Disabled > 10 kΩ Enabled< 500 Ω Latch disable> 500 ms
Output Specifications
OutputSPDT relay
Rated insulation voltage 250 VAC
Contact ratings (AgSnO2) µ
Resistive loadsAC 1 5 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 106 operations
Electrical life≥ 105 operations
(at 5 A, 250 V, cos ϕ = 1)
Operating frequency ≤ 7200 operations/h
Dielectric strength
Dielectric voltage2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 µs)
Specifications are subject to change without notice (09.06.10)1

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