Monitoring Relays 3-Phase Sequence and Phase Loss Type DPA71 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%), by 2 models Output: 5 A DPDT relay normally energized For mounting on DIN-rail in accordance with DIN/EN 50 022 35.5 mm (DPA71) DIN-rail housing (DIN 43880) LED indication for relay and power supply ON Product Description Ordering Key DPA 71 D M48 3-Phase relay for detection of Housing 35.5 mm wide, Housing incorrect phase sequence, DPDT 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, covered by 2 models. detects regenerated voltage Output For mounting on DIN-rail. up to 85% of the nominal Power supply voltage (phase-phase). Type Selection Mounting Output Supply: 208 to 240 VAC Supply: 380 to 480 VAC DIN-rail DPDT DPA 71 D M23 DPA 71 D M48 Input Specifications Output Specifications Input Output DPDT 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 240 VAC (DM23) 177 to 275 VAC Small inductive loads AC 15 3 A 250 VAC 380 to 480 VAC (DM48) 323 to 550 VAC DC 13 3 A 24 VDC ON-level > 85% of the phase- phase 6 Mechanical life 30 x 10 operations voltage 5 Electrical life 10 operations (at 5 A, 250 V, cos = 1) Operating frequency 7200 operations/h Dielectric strength Dielectric voltage 2 kVAC (rms) Supply Specifications 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 DM23 208 to 240 VAC 15%, 45 to 65 Hz DM48 380 to 480 VAC 15%, 45 to 65 Hz Rated operational power 10 VA 400 VAC, 50 Hz 6 VA 230 VAC, 50 Hz Supplied by L2 and L3 Specifications are subject to change without notice (30.03.10) 1DPA71 General Specifications Reaction time Weight Approx. 75 g Alarm ON delay < 100 ms Screw terminals Alarm OFF delay < 300 ms Tightening torque Max. 0.5 Nm Accuracy (15 min warm-up time) acc. to IEC 60947 Temperature drift 1000 ppm/C Product standard EN 60255-6 Repeatability 0.5% Approvals UL, CSA Indication for CE Marking L.V. Directive 2006/95/EC Power supply ON LED, green EMC Directive 2004/108/EC Relay ON LED, yellow EMC Environment Immunity According to EN 60255-26 Degree of protection IP 20 According to EN 61000-6-2 Pollution degree 3 Emissions According to EN 60255-26 Operating temperature -20 to +50C, R.H. < 95% According to EN 61000-6-3 Storage temperature -30 to +80C, R.H. < 95% Housing Dimensions 35.5 x 81 x 67.2 mm Material PA66 or Noryl Mode of Operation DPA71 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 L3 L3 L2 L2 L1 L1 m m m m L1 L2L3 12 14 22 24 L1 L2 L3 12 14 22 24 m<3 m<3 L2 L2 L3 L3 11 21 11 21 2 Specifications are subject to change without notice (30.03.10)