DPB71CM48

Monitoring RelaysTrue RMS 3-Phase, 3-Phase+N, Multi-functionType DPB71• TRMS 3-phase over and under voltage,phase sequence and phase loss monitoring relay• Detects when all 3 phases are present and have the correct phase sequence• Detects if all the 3-phase-phase or phase-neutral volt- ages are within the set limits• Upper and lower limits separately adjustable• Measures its own power supply• Selection of measuring range by DIP-switches• Adjustable voltage on relative scale• Adjustable delay function (0.1 to 30 s)• Output: 5 A SPDT relay N.E.• For mounting on DIN-rail in accordance withDIN/EN 50 022• 35.5 mm DIN-rail housing• LED indication for relay, alarm and power supply ONProduct Description Ordering KeyDPB 71 C M233-phase or 3-phase+neutral line voltage monitoring relay forphase sequence, phase loss, over and under voltage (separately adjustable set points) with built-intime delay function.Type SelectionSupplyranges from208 to480 VAC covered by two multivoltage relays.35.5 mm wide housing suit- able both for back and front panel mounting.Housing Function TypeItem numberOutputPower supplyMountingOutput Supply: 208 to 240 VAC Supply: 380 to 480 VACDIN-railSPDT DPB 71 C M23DPB 71 C M48InputSpecificationsInputL1, L2, L3, N Terminals L1, L2, L3, N Measures its own supplyNote: Connect the neutral only if it is intrinsically at the star centreMeasuring ranges208 to 240 ∆ VAC 177 to 275 ∆ VAC380 to 480 ∆ VAC 323 to 550 ∆ VACRangesUpper level +2 to +22%of the nominal voltageLower level -22 to -2%of the nominal voltageNote: The input voltagemust not exceed the maximum rated voltage or drop belowthe minumum rated voltage reported above.HysteresisSet points from 2 to 5% 1% Set points from 5 to 22% 2%Output SpecificationsOutputSPDT relayRated insulation voltage 250 VACContact ratings (AgSnO2) µResistive loadsAC 1 5 A @ 250 VAC DC 12 5 A @ 24 VDCSmall inductive loads AC 15 2.5 A @ 250 VAC DC 13 2.5 A @ 24 VDCMechanical life≥ 30 x 106 operationsElectrical life≥ 105 operations(at 5 A, 250 V, cos ϕ = 1)Operating frequency ≤ 7200 operations/hDielectric strengthDielectric voltage2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 µs)Supply SpecificationsPower supplyOvervoltage cat. III Rated operational voltage(IEC 60664, IEC 60038) through terminals:L1, L2, L3, NM23 - Delta Voltage: 208 to 240 VAC ± 15%45 to 65 HzM48 - Delta Voltage: 380 to 480 VAC ± 15%45 to 65 HzM48 - Star Voltage: 220 to 277 VAC ± 15%45 to 65 HzRated operational powerDPB71CM2313 VA @ 230 ∆VAC, 50 HzDPB71CM4813 VA @ 400 ∆VAC, 50 HzSupplied by L1 and L3Specifications are subject to change without notice (31.03.10)1