23/06/2014 www.crouzet.com 3-phase voltage control relay - 17.5 mm / 35 mm M3US Part number 84873222 H3US and M3US relays control, on 3-phase networks : - overvoltage between phases, - undervoltage between phases The H3USN relay controls, on 3-phase networks : - overvoltage between phases and neutral, - undervoltage between phases and neutral, - loss of neutral Multi-voltage Products Controls its own supply voltage True RMS measurement LED status indication Part numbers 84873222 Type Function Nominal voltage (V) Output M3US Under/overvoltage between phases 3 x 208 3 x 480 V AC 1 single pole changeover relay Specifications Supply AC supply voltage frequency Galvanic isolation of power supply/measurement 50 / 60 Hz 10 % No Inputs and measuring circuit Frequency of measured signal Max. measuring cycle time Voltage threshold adjustment Fixed hysteresis Display precision Repetition accuracy with constant parameters Measuring error with voltage drift Measuring error with temperature drift 50 60 Hz 10 % 150 ms/True RMS measurement Undervoltage -2 to -20 % of selected Un for M3US : (-2 to -12 % across the 3 x 208 V range) (-2 to -17 % across the 3 x 220 V range) for H3US : (-2 to -12 % across the 3 x 220 V range) Overvoltage 220 % of selected Un For M3US and H3US : (+2 +10 % across the 3 x 480 V AC range) 2 % of Un (M3US, H3US) 3 % of the displayed value 0,5 % < 1 % across the whole range 0,05 % / C Timing Delay on thresold crossing Tt Repetition accuracy with constant parameters Reset time Alarm on delay time max. 0,3 30 s (0, +10 %) 3% 1500 ms 200 ms Output Type of contacts Maximum breaking voltage Max. breaking current Min. breaking current Breaking capacity (resistive) Maximum rate Operating categories acc. to IEC/EN 60947-5-1 Mechanical life (operations) No cadmium 250 V AC/DC 5 A AC/DC 10 mA / 5 V DC 1250 VA AC 360 operations/hour at full load AC 12, AC 13, AC 14, AC 15, DC 12, DC 13, DC 14 30 x 106 Insulation Nominal insulation voltage IEC/EN 60664-1 Insulation coordination (IEC/EN 60664-1) Rated impulse withstand voltage (IEC/EN 60664-1) Dielectric strength (IEC/EN 60664-1) Insulation resistance (IEC/EN 60664-1) 400 V Overvoltage category III : degree of pollution 3 4 KV (1,2 / 50 s) 2 kV AC 50 Hz 1 min > 500 M / 500 VDC General characteristics Display power supply Display relay Mounting Mounting position Material : enclosure plastic type VO to UL94 standard Protection (IEC/EN 60529) Green LED Yellow LED (1 for M3US, 2 for H3US and H3USN) On 35 mm symmetrical DIN rail, IEC/EN 60715 All positions Incandescent wire test according to IEC/EN 60695-2-11 Terminal block : IP 20 Casing : IP30 Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 23/06/2014 Connecting capacity IEC/EN 60947-1 Max. tightening torques IEC/EN 60947-1 Operating temperature IEC/EN 60068-2 Storage temperature IEC/EN 60068-2 Humidity IEC/EN 60068-2-30 Vibrations according to IEC/EN60068-2-6 Shocks IEC/EN 60068-2-6 www.crouzet.com Rigid : 1 x 42 - 2 x 2.52 mm2 1 x 11 AWG - 2 x 14 AWG Flexible with ferrules : 1 x 2.52 - 2 x 1.52 mm2 1 x 14 AWG - 2 x 16 AWG 0,6 1 Nm / 5,3 8,8 Lbf.Ft -20 +50 C -40 +70 C 2 x 24 hr cycle 95 % RH max. without condensation 55 C 10 150 Hz, A = 0.035 mm 5g Standards Standards Certifications Conformity with environmental directives IEC/EN 50178, IEC/EN 61000-6-2, IEC/EN 61000-6-3 CE, UL, CSA, GL RoHS, WEEE Supply Supply voltage Un Voltage supply tolerance Operating range Power consumption at Un 3 x 208 3 x 480 V AC * -12 % / +10 % 183 528 V AC 22 VA in 400 VAC, 50 Hz Inputs and measuring circuit Selection of phase-phase nominal voltage Un Selection of phase-neutral voltage 208-220-380-400-415-440-480 V AC - Timing Delay on pick-up 650 ms Output Electrical life (number of operations) 1 x 105 General characteristics Casing Weight 17,5 mm 80 g Comments Accessories Description Code Removable sealable cover for 17.5 mm casing 84800000 Principles Overview 3-phase voltage controllers which monitor : - Undervoltage, adjustable from -20 to -2 % of Un - Overvoltage, adjustable from 2 to 20 % of Un - Presence of the neutral (H3USN only) Measurements are taken between Phases for the H3US - M3US and between Phases and Neutral for the H3USN Faults are signalled via LEDs, distinguishing the origin of the fault (one LED for the upper threshold, one LED for the lower threshold). Voltage selector switch : Set the selector switch to the 3-phase network voltage Un. The position of this selector switch is only taken into account when the unit is powered up. If the switch position changes while the unit is operating, all the LEDs flash but the product continues to work normally with the voltage selected on energisation prior to the change of position. The LEDs return to their normal state if the switch is reset to its initial position defined before the last energisation. Principles Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 23/06/2014 www.crouzet.com Operating principle M3US The relay monitors its own supply voltage. It controls : - Undervoltage, adjustable from -20 to -2 % of Un (-12 to -2 % over the 3 x 208 V AC range and -17 % to -2 % for the 3 x 220 V AC range due to the minimum voltage 183 V AC) - Overvoltage, adjustable from +2 +20 % (+2 +10 % over the 3 x 480 V AC range due to the maximum voltage 528 V AC). An adjustable time delay from 0.3 to 30s can be used to disable the output relay during a transient fault. In the event of a voltage fault, the relay opens at the end of the time delay set by the user. In the event of phase failure, the relay opens instantaneously, without waiting for the end of the time delay. When the unit is powered up with a measured fault, the relay stays open. No Legend Overvoltage Hysteresis Undervoltage Phases L1, L2, L3 Relay Over and undervoltage threshold delay Dimensions (mm) M3US mm Connections M3US Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 23/06/2014 No www.crouzet.com Legend 100 mA fast-blow fuse or cut-out Product adaptations Customisable colours and labels Single voltage in the generic range Fixed or adjustable time delay Adjustable fixed hysteresis Adaptations dedicated to M3US : Fixed threshold in the generic range Adaptations dedicated to H3US : Fixed threshold in the generic range Adaptations dedicated to H3USN : Fixed overvoltage threshold in the generic range Fixed undervoltage threshold in the generic range Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Crouzet: 84873222