Selected parameters OUTPUT SIGNAL 1 relay SETPOINTS 1, adjustable MONITORED VARIABLE 3-phase AC voltage monitoring Others POWER SUPPLY RANGE 380÷480 VAC MONITORING FUNCTION Under voltage, phase sequence, phase loss MOUTING DIN-rail INPUT RANGE 380÷480 VAC
Monitoring Relays 3-Phase Sequence and Phase Loss Type DPA53 • 3-phase monitoring relay for phase sequence and phase loss • Detects when all phases are present and have the cor- rect sequence • Knob-adjustable undevoltage detection • Measures its own power supply • Power supply range: 208 to 240 and 380 to 480 VAC (±15%) • Output: 5 A SPDT relay normally energized • For mounting on DIN-rail in accordance with DIN/EN 50 022 • 17.5 mm DIN-rail housing (DIN 43880) • LED indication for relay and power supply ON Product DescriptionOrdering Key DPA 53 C M23 3-Phase relay fordetection of incorrect phase sequence and phase loss. Using the frontknob it can be decided the undervoltage setpoint of the unit. Supplyrangefrom208to 240VACand380to480 VAC covered by twomulti- voltage relays. For mounting onDIN-rail.Housing17.5 mm wide suitable both for back and front panel mount- ing. Housing Function Type Item number Output Power supply Type Selection MountingOutputSupply: 208 to 240 VACSupply: 380 to 480 VAC DIN-railSPDTDPA 53 C M23 DPA 53 C M48 InputSpecifications Input L1, L2, L3Terminals L1, L2, L3 Measures its own supply Measuring range M23 160 to 240 VAC M48 320 to 480 VAC Hysteresis M23 3% on full scale M48 4% on full scale Output Specifications OutputSPDT relay, N.E. 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 voltage≥ 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 µs) Supply Specifications Power supplyOvervoltage cat. III Rated operational voltage (IEC 60664, IEC 60038) through terminals: L1, L2, L3 M23 208 to 240 VAC ± 15%, 45 to 65 Hz M48380 to 480 VAC ± 15%, 45 to 65 Hz Rated operational power M23 7 VA @ 230 VAC, 50 Hz M48 13 VA @ 400 VAC, 50 Hz Supplied by L1 and L3 General Specifications Reaction time Alarm ON delay< 100 ms Alarm OFF delay < 300 ms Accuracy (15 min warm-up time) Temperature drift± 1000 ppm/°C Repeatability ± 0.5% on full scale Indication for Power supply ON LED, green Relay ONLED, yellow Specifications are subject to change without notice (30.03.10)1
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