DUA55CM44

Monitoring Relays 1-Phase Voltage selection Type DUA55 • 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 1-Phase relay for detection of incorrect mains voltage. This unit allows to stop incorrect power supply voltage when different from the desired one. Power supply range from Housing Function Type Item number Output Power supply 208 to 480 VAC plus selection of the different possible nominal voltages. For mounting on DIN-rail. Housing 17.5 mm wide suitable both for back and front panel mounting. DUA 55 C M44 Type Selection Mounting Output Supply: 208 to 480 VAC DIN-rail SPDT DUA 55 C M44 Output Specifications Input Specifications Input L, N Measuring range Terminals A1, A2 Measures its own supply 177 to 550 VAC Supply Specifications Power supply Rated operational voltage through terminals: A1, A2 Rated operational power Overvoltage cat. III (IEC 60664, IEC 60038) 208 to 480 VAC ± 15%, 45 to 65 Hz 6 VA @ 230 VAC, 50 Hz Output Rated insulation voltage Contact ratings (AgSnO2) Resistive loads AC 1 DC 12 Small inductive loads AC 15 DC 13 Mechanical life Electrical life SPDT relay, N.E. 250 VAC µ 5 A @ 250 VAC 5 A @ 24 VDC 2.5 A @ 250 VAC 2.5 A @ 24 VDC ≥ 30 x 106 operations ≥ 105 operations (at 8 A, 250 V, cos ϕ = 1) ≤ 7200 operations/h Operating frequency Dielectric strength Dielectric voltage ≥ 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 µs) General Specifications Reaction time Alarm ON delay Alarm OFF delay Accuracy Temperature drift Repeatability Indication for Power supply ON Relay ON < 100 ms < 300 ms (15 min warm-up time) ± 1000 ppm/°C ± 0.5% on full scale LED, green LED, yellow Specifications are subject to change without notice (08.60.10) Environment Degree of protection Pollution degree Operating temperature @ Max. voltage, 50 Hz @ Max. voltage, 60 Hz Storage temperature Housing Dimensions Material Weight IP 20 2 -20 to +60°C, R.H. < 95% -20 to +50°C, R.H. < 95% -30 to +80°C, R.H. < 95% 17.5 x 81 x 67.2 mm PA66 or Noryl Approx. 80 g 1 DUA55 General Specifications (cont.) Mode of Operation Screw terminals Tightening torque DUA55 monitors its own 1- phase power supply. The relay operates when the monitored voltage is within the desired tolerance (± 10% or ± 15%). Product standard Approvals CE Marking EMC Immunity Max. 0.5 Nm acc. to IEC 60947 EN 60255-6 UL, CSA L.V. Directive 2006/95/EC EMC Directive 2004/108/EC Example The relay monitors that the power supply is the correct one for the required equipment. According to EN 60255-26 According to EN 61000-6-2 According to EN 60255-26 According to EN 61000-6-3 Emissions Range setting Select the proper nominal voltage level using DIPswitches as shown below. Voltage window ON: ± 15 % OFF: ± 10 % Measuring range 208 VAC 220 VAC 230 VAC 240 VAC SW2 OFF OFF OFF OFF SW3 OFF OFF ON ON SW4 OFF ON OFF ON Operation Diagram Set level Voltage window Power supply Relay ON 2 Specifications are subject to change without notice (08.06.10) DUA55 Wiring Diagram Dimensions 17.5 67.2 45 2 81 18.7 Specifications are subject to change without notice (08.60.10) 3