MWG Monitoring Relays 3-Phase Monitoring Relays Din Rail Mount 17.5 mm Multifunction Control of 3-phase networks : phase sequence, phase failure, imbalance (asymmetry), over and undervoltage (MWU) Range includes mono-function product and mul- ti-function product Multi-voltage from 3 x 208 to 3 x 480 V Controls its own supply voltage True RMS measurement LED status indication Specifications Functions Nominal voltage (V) Output Code Phase sequence and failure 3 x 208 3 x 480 V AC* 1 single pole changeover relay 84873022 Power supply Supply voltage Un 3 x 208 3 x 480 V AC * Voltage supply tolerance -12 % / +10 % Operating range 183 528 V AC AC supply voltage frequency 50 / 60 Hz 10 % Galvanic isolation of power supply/measurement No Power consumption at Un 22 VA in 400 VAC, 50 Hz Immunity from micro power cuts 10 ms Inputs and measuring circuit Measurement ranges 183 528 V AC Selection of phase-phase nominal voltage Un 208 - 220 - 380 - 400 - 415 - 440 - 480 V Frequency of measured signal 50 60 Hz 10 % Max. measuring cycle time 150 ms/True RMS measurement 2 20 % of selected Un Voltage threshold adjustment (-2 to -12 % across the 3 x 208 V AC range / -2 to -17 % across the 3 x 220 V AC range / 2 to 10 % across the 3 x 480 V AC range) Voltage threshold hysteresis 2 % of fixed Un Asymmetry threshold hysteresis 2 % of fixed Un Asymmetry threshold adjustment 5 to 15 % of selected Un Display precision 3 % of the displayed value Repetition accuracy with constant parameters 0,5 % Measuring error with voltage drift < 1 % across the whole range Measuring error with temperature drift < 0,05 %/ C Maximum regeneration (phase failure) 70 % Time delays Delay on thresold crossing 0.1 to 10 s 0 +10 % Repetition accuracy with constant parameters 3 % Monitoring Relays I I 02 I www.crouzet-control.com Time delays Reset time 1500 ms Delay on pick-up 650 ms Alarm on delay time max. < 200 ms Outputs Type of output 1 single pole changeover relay Type of contacts No cadmium Maximum breaking voltage 250 V AC/DC Max. breaking current 5 A AC/DC Min. breaking current 10 mA / 5 V DC Electrical life (number of operations) 1 x 10 Breaking capacity (resistive) 1250 VA AC Maximum rate 360 operations/hour at full load Operating categories acc. to IEC/EN 60947-5-1 AC 12, AC 13, AC 14, AC 15, DC 12, DC 13, DC 14 Mechanical life (operations) 30 x 10 Insulation Nominal insulation voltage IEC/EN 60664-1 400 V Insulation coordination (IEC/EN 60664-1) Overvoltage category III : degree of pollution 3 Rated impulse withstand voltage (IEC/EN 60664-1) 4 KV (1,2 / 50 s) Dielectric strength (IEC/EN 60664-1) 2 kV AC 50 Hz 1 min Insulation resistance (IEC/EN 60664-1) > 500 MOhm(s) / 500 V DC General characteristics Display power supply Green LED Display relay Yellow LED - This LED flashes during the threshold delay Casing 17,5 mm Mounting On 35 mm symmetrical DIN rail, IEC/EN 60715 Mounting position All positions Material : enclosure plastic type VO to UL94 standard Incandescent wire test according to IEC 60695-2-11 & NF EN 60695-2-11 Protection (IEC/EN 60529) Terminal block : IP20 Casing : IP30 Weight 80 g Connecting capacity IEC/EN 60947-1 Rigid : 1 x 4 - 2 x 2.5 mm 1 x 11 AWG - 2 x 14 AWG Flexible with ferrules : 1 x 2.5 - 2 x 1.5 mm 1 x 14 AWG - 2 x 16 AWG Max. tightening torques IEC/EN 60947-1 0,6 Nm 1 / 5,3 8,8 Lbf.In Operating temperature IEC/EN 60068-2 -20 +50 C Storage temperature IEC/EN 60068-2 -40 +70 C Humidity IEC/EN 60068-2-30 2 x 24 hr cycle 95 % RH max. without condensation 55 C Vibrations according to IEC/EN60068-2-6 10 150 Hz, A = 0.035 mm Shocks IEC/EN 60068-2-6 5 g Standards Product standard IEC/EN 50178 Electromagnetic compatibility (EMC) IEC/EN 61000-6-1, IEC/EN 61000-6-2, IEC/EN 61000-6-3, IEC/EN 61000-6-4 Certifications CE, UL, CSA, GL Conformity with environmental directives RoHS Comments * 3-phase mains with earth