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 Description Ordering Key DPA 53 C M23 3-Phase relay for detection 240 VAC and 380 to 480 Housing of incorrect phase sequence VAC covered by two multi- Function and phase loss. voltage relays. For mounting Type Using the front knob it can on DIN-rail. Housing 17.5 Item number be decided the undervoltage mm wide suitable both for Output setpoint of the unit. back and front panel mount- Power supply Supply range from 208 to ing. Type Selection Mounting Output Supply: 208 to 240 VAC Supply: 380 to 480 VAC DIN-rail SPDT DPA 53 C M23 DPA 53 C M48 Input Specifications Output Specifications Input Output SPDT relay, N.E. L1, L2, L3 Terminals L1, L2, L3 Rated insulation voltage 250 VAC Measures its own supply Contact ratings (AgSnO) 2 Measuring range Resistive loads AC 1 5 A 250 VAC M23 160 to 240 VAC DC 12 5 A 24 VDC M48 320 to 480 VAC Small inductive loads AC 15 2.5 A 250 VAC Hysteresis M23 3% on full scale DC 13 2.5 A 24 VDC M48 4% on full scale 6 Mechanical life 30 x 10 operations 5 Electrical life 10 operations (at 5 A, 250 V, cos = 1) Operating frequency 7200 operations/h Dielectric strength Dielectric voltage 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 s) Supply Specifications General Specifications Power supply Overvoltage cat. III Reaction time Rated operational voltage (IEC 60664, IEC 60038) Alarm ON delay < 100 ms through terminals: L1, L2, L3 Alarm OFF delay < 300 ms M23 208 to 240 VAC 15%, Accuracy (15 min warm-up time) 45 to 65 Hz Temperature drift 1000 ppm/C M48 380 to 480 VAC 15%, Repeatability 0.5% on full scale 45 to 65 Hz Indication for Rated operational power Power supply ON LED, green M23 7 VA 230 VAC, 50 Hz Relay ON LED, yellow M48 13 VA 400 VAC, 50 Hz Supplied by L1 and L3 Specifications are subject to change without notice (30.03.10) 1DPA53 General Specifications (cont.) Mode of Operation DPA53 monitors its own Example 1 Environment 3- phase power supply. The relay monitors that the Degree of protection IP 20 The relay operates when all power supply has the cor- Pollution degree 2 the phases are present, the rect phase sequence and Operating temperature phase sequence is correct that all phases are present. Max. voltage, 50 Hz -20 to +60C, R.H. < 95% and each phase-phase volt- Max. voltage, 60 Hz -20 to +50C, R.H. < 95% age is above the adjusted Example 2 Storage temperature -30 to +80C, R.H. < 95% setpoint. The relay releases The relay releases in case of Housing when one phase-phase volt- interruption of one or more Dimensions 17.5 x 81 x 67.2 mm age drops below the set- phases, provided that the Material PA66 or Noryl point or when the phase regenerated voltage does Weight Approx. 75 g sequence is incorrect. not exceed the set voltage. Screw terminals Tightening torque Max. 0.5 Nm acc. to IEC 60947 Product standard EN 60947-5-1 Approvals UL, CSA Level setting CCC (GB14048.5) Select the proper undervolt- Centre knob: CE Marking L.V. Directive 2006/95/EC age level using the knob Setting of under level on EMC Directive 2004/108/EC according to the phase- absolute scale. EMC phase voltage and the need- Immunity According to EN 61000-6-2 ed sensitivity. Emissions According to EN 61000-6-3 Operation Diagrams L2 L3 L1 L1 L2 L1 L2 L2 L3 L3 L1 L3 Relay ON Min L1, L2, L3 Hysteresis Set level Power supply Relay ON Wiring Diagrams Example 1 Example 2 2 Specifications are subject to change without notice (30.03.10)