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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 24/48 VAC MONITORING FUNCTION Over or under voltage MOUTING DIN-rail INPUT RANGE 10 V DELAY 1, adjustable
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 Output Power supply Range 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 InputSpecifications 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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