Monitoring Relays 3-Phase Sequence and Phase Loss Type DPA51 3-phase monitoring relay for phase sequence and phase loss Detects when all phases are present and have the correct sequence Measures its own power supply Power supply range: 208 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 51 C M44 3-Phase relay for detection of Housing 17.5 mm wide, Housing incorrect phase sequence, SPDT relay output, suitable Function total and partial phase loss. for back and front panel Type Supply range from 208 to 480 mounting. The device Item number VAC. For mounting on DIN- detects regenerated voltage Output rail. up to 85% of the nominal Power supply voltage (phase-phase). Type Selection Mounting Output Supply: 208 to 480 VAC DIN-rail SPDT DPA 51 C M44 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 208 to 480 VAC 177 to 550 VAC DC 12 5 A 24 VDC ON-level > 85% of the phase- phase Small inductive loads AC 15 2.5 A 250 VAC voltage DC 13 2.5 A 24 VDC 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 Supply Specifications Dielectric voltage 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 s) Power supply Overvoltage cat. III Rated operational voltage (IEC 60664, IEC 60038) through terminals: L1, L2, L3 208 to 480 VAC 15%, 45 to 65 Hz Rated operational power 13 VA 400 VAC, 50 Hz Supplied by L2 and L3 Specifications are subject to change without notice (20.06.14) 1DPA51 General Specifications Reaction time Housing Alarm ON delay < 100 ms Dimensions 17.5 x 81 x 67.2 mm Alarm OFF delay < 300 ms Material PA66 or Noryl Accuracy (15 min warm-up time) Weight Approx. 75 g Temperature drift 1000 ppm/C Screw terminals Repeatability 0.5% Tightening torque Max. 0.5 Nm Indication for acc. to IEC 60947 2 Power supply ON LED, green Wire section 2,5mm (AWG13) stranded wire Relay ON LED, yellow Fusing (for DPA51) 500mA fast blow Environment Product standard EN 60947-5-1 Degree of protection IP 20 Approvals UL, CSA Pollution degree 3 CCC (GB14048.5) Operating temperature CE Marking L.V. Directive 2006/95/EC Max. voltage, 50 Hz -20 to +60C, R.H. < 95% EMC Directive 2004/108/EC Max. voltage, 60 Hz -20 to +50C, R.H. < 95% EMC Storage temperature -30 to +80C, R.H. < 95% Immunity According to EN 61000-6-2 Emissions According to EN 61000-6-3 Mode of Operation DPA51 monitors its own 3- below 85% of the other Example 1 Example 2 phase power supply voltage. phase-phase voltages or The relay monitors that the The relay releases in case of The relay operates when all when the phase sequence is power supply has the correct interruption of one or more the phases are present and the wrong. phase sequence and that all phases, provided that the phase sequence is correct. phases are present. regenerated voltage does The relay releases when one not exceed 85% of the phase-phase voltage drops phase-phase voltage. Operation Diagram Wiring Diagrams Example 1 Example 2 2 Specifications are subject to change without notice (20.06.14)