mounting. housing 17.5 mm wide suitable both for back and front panel power supply range from 208 to 480 vac plus selection of the different possible nominal voltages. for mounting on din-rail. desired one. stop incorrect power supply voltage when different from the -ing incorrect phas sequence and phase loss. this unit allows to 3-phase relay for detection of incorrect mains voltage. also detect- ? for mounting on din-rail in accordance with din/en 50022 output specifications t ype DPA55CM44 property monitoring relays 3-phase v oltage 3 u r w h f w l r q pr oduct description ? 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 ? 17.5 mm din-rail housing (din 43880) ? led indication for relay and power supply on t ype selection mounting output supply: 208 to 480 vac din-rail spdt dpa 55 c m44 input l1, l2, l3 t erminals l1, l2, l3 measur es its own supply measuring range 177 to 550 vac hysteresis <3v input specifications output spdt r elay, n.e. rated insulation voltage 250 v ac contact ratings (agsno 2 ) resistive loads ac 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 10 6 operations electrical life 10 5 operations (at 5 a, 250 v , cos ? =1) operating fr equency 7200 operations/h dielectric strength dielectric voltage 2k vac (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 18 v a @ 400 vac, 50 hz supplied by l1 and l3 supply specifications ? 3-phase monitoring relay for phase equences reaction time alarm on delay < 100 ms alarm off delay < 300 ms accuracy (15 min warm-up time) t emperature drift 1000 ppm/c repeatability 0.5% on full scale i ndication for power supply on led, gr een relay on led, yellow envir onment degree of protection ip 20 pollution degree 2 operating temperature @ max. voltage, 50 hz -20 to +60c, r.h. < 95% @ max. voltage, 60 hz -20 to +50c, r.h. < 95% storage temperature -30 to +80c, r.h. < 95% general specifications housing dimensions 17.5 x 81 x 67.2 mm material pa66 or noryl w eight approx. 80 g screw terminals tightening torque max. 0.5 nm acc. to iec 60947 pr oduct standard en 60255-6 appr ovals ul, csa ce marking l.v. directive 2006/95/ec emc directive 2004/108/ec emc immunity according to en 60255-26 according to en 61000-6-2 emissions according to en 60255-26 according to en 61000-6-3
select the proper nominal voltage level using dip-switches as shown below. sequence is correct, and each phase-phase voltage is within the desired tolerance ( 10% or 15%). dpa55 monitors its own 3- phase power supply. the relay operates when all the phases are present, the phase DPA55CM44 dimensions mode of operation range setting voltage window on: 15 % off: 10 % measuring range sw2 sw3 sw4 208 vac off off off 220 v ac off off on 230 v ac off on off 240 v ac off on on 380 vac on off off 400 vac on off on 415 vac on on off 480 vac on on on operation diagrams l1 l2 l3 l2 l1 l3 l3 l2 l1 l1 l2 l3 relay on voltage window set level power supply relay on l 1 -l 2 l 2 -l 3 l 3 -l 1 wiring diagrams 67.2 18.7 45 17.5 81 2 5.5 the relay releases in case of incorrect phase sequence or when the voltage is out of the set limits.
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