Monitoring Relays 3-Phase Voltage selection Type DPA55 3-phase monitoring relay for phase sequence Detects if voltage is at the desired level ( 10% or 15%) Measures its own power supply Wide 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 55 C M44 3-Phase relay for detection of to 480 VAC plus selection of Housing incorrect mains voltage. Also the different possible nominal Function detecting incorrect phase voltages. For mounting on Type sequence and phase loss. DIN-rail. Housing 17.5 mm Item number This unit allows to stop wide suitable both for back Output incorrect power supply volt- and front panel mounting. Power supply age when different from the desired one. Power supply range from 208 Type Selection Mounting Output Supply: 208 to 480 VAC DIN-rail SPDT DPA 55 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 177 to 550 VAC Resistive loads AC 1 5 A 250 VAC Hysteresis < 3V DC 12 5 A 24 VDC Small inductive loads AC 15 2.5 A 250 VAC DC 13 2.5 A 24 VDC 6 Mechanical life 30 x 10 operations 5 Electrical life 10 operations Supply Specifications (at 5 A, 250 V, cos = 1) Operating frequency 7200 operations/h Power supply Overvoltage cat. III Dielectric strength Rated operational voltage (IEC 60664, IEC 60038) Dielectric voltage 2 kVAC (rms) through terminals: L1, L2, L3 208 to 480 VAC 15%, Rated impulse withstand volt. 4 kV (1.2/50 s) 45 to 65 Hz Rated operational power 18 VA 400 VAC, 50 Hz Supplied by L1 and L3 Specifications are subject to change without notice (02.04.10) 1DPA55 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. 80 g Temperature drift 1000 ppm/C Screw terminals Repeatability 0.5% on full scale Tightening torque Max. 0.5 Nm Indication for acc. to IEC 60947 Power supply ON LED, green Product standard EN 60255-6 Relay ON LED, yellow Approvals UL, CSA Environment CE Marking L.V. Directive 2006/95/EC Degree of protection IP 20 EMC Directive 2004/108/EC Pollution degree 2 EMC Operating temperature Immunity According to EN 60255-26 Max. voltage, 50 Hz -20 to +60C, R.H. < 95% According to EN 61000-6-2 Max. voltage, 60 Hz -20 to +50C, R.H. < 95% Emissions According to EN 60255-26 Storage temperature -30 to +80C, R.H. < 95% According to EN 61000-6-3 Mode of Operation DPA55 monitors its own and each phase-phase volt- Example 1 Example 2 3- phase power supply. age is within the desired tol- The relay monitors that the The relay releases in case of The relay operates when all erance ( 10% or 15%). power supply is the correct incorrect phase sequence or the phases are present, the one for the required equip- when the voltage is outside phase sequence is correct ment. the set limits. Range setting Select the proper nominal voltage level using DIP- Voltage window switches as shown below. ON: 15 % OFF: 10 % Measuring range SW2 SW3 SW4 208 VAC OFF OFF OFF 220 VAC OFF OFF ON 230 VAC OFF ON OFF 240 VAC OFF ON ON 380 VAC ON OFF OFF 400 VAC ON OFF ON 415 VAC ON ON OFF 480 VAC ON ON ON 2 Specifications are subject to change without notice (02.04.10)