DUA52C724 Carlo Gavazzi

Monitoring Relays DC Under Voltage Type DUA52 DC undervoltage monitoring relay Measuring if power supply is below the set level Measures its own power supply Measuring ranges: 8 - 28 V DC and 38 - 58 V DC Adjustable hysteresis: 4 to 50% Output: 5 A SPDT NE relay For mounting on DIN-rail in accordance with DIN/EN 50 022 17.5 mm housing (DIN 43880) LED indication for relay and power supply ON Product Description Ordering Key DUA 52 C 724 DUA52 is a voltage monitor- and hysteresis. Typical appli- Housing ing relay that measure its own cations are monitoring of Function power supply. The measuring backup batteries, batteries on Type ranges are 8-28 VDC and 38- diesel generator sets and the Item number 58 VDC. It has separate like. Output potentiometers for setpoint Power supply Type Selection Mounting Output Measuring range Supply : 12/24 VDC Supply: 48 VDC DIN-rail SPDT 8 to 28 VDC DUA 52 C 724 DIN-rail SPDT 38 to 58 VDC DUA 52 C 748 Input Specifications Output Specifications Input (voltage level) Terminals A1, A2 Output SPDT relay Measures its own power Rated insulation voltage 250 VAC supply Contact ratings (AgSnO ) 2 Measuring ranges Resistive loads AC 1 5 A 250 VAC Direct Level DC 12 5 A 24 VDC 48 VDC 38 to 58 VDC Small inductive loads AC 15 2.5 A 250 VAC 12 to 24 VDC 8 to 28 VDC DC 13 2.5 A 24 VDC 6 Mechanical life 30 x 10 operations 5 Electrical life 10 operations (at 8 A, 250 V, cos = 1) Operating frequency 7200 operations/h Dielectric strength Dielectric voltage 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 s) Supply Specifications Power supply Overvoltage cat. III Rated operational voltage (IEC 60664, IEC 60038) through terminals: A1 and A2 724 8 to 28 VDC 748 38 to 58 VDC Dielectric voltage None Dielectric voltage Supply to output 2 kV Rated operational power 1.5 W Specifications are subject to change without notice (08.06.10) 1DUA52 General Specifications Power ON delay < 200 ms Housing Dimensions 17.5 x 81 x 67.2 mm Reaction time (input signal variation from Material PA66 or Noryl -20% to +20% or from +20% to -20% of set value) Weight Approx. 75 g Alarm ON delay < 200 ms Screw terminals Alarm OFF delay < 200 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 Alarm delay 10% on set value 50 ms Approvals UL, CSA Repeatability 0.5% on full-scale CE Marking L.V. Directive 2006/95/EC Indication for EMC Directive 2004/108/EC Power supply ON LED, green EMC Output relay ON LED, yellow Immunity According to EN 60255-26 Environment According to EN 61000-6-2 Degree of protection IP 20 Emissions According to EN 60255-26 Pollution degree 3 According to EN 61000-6-3 Operating temperature -20 to 60C, R.H. < 95% Storage temperature -30 to 80C, R.H. < 95% Mode of Operation Range and Level Setting DUA52 monitors the DC val- is rising above the setpoint Selection of level: Lower knob: ue of its own power supply. plus hysteresis, and is deen- Setting of hysteresis on rela- ergized when the measured Centre knob: tive scale The output is energized voltage drops below the set- Setting of level on absolute when the measured voltage point value. scale. Operation Diagram Wiring Diagram Hysteresis Setpoint Relay ON Dimensions 17.5 67.2 18.7 2 Specifications are subject to change without notice (08.06.10) 2 81 45