RS PRO RS PRO DPDT 17.5mm Monitoring Relay

RS PRO 3 Phase Fault Sequence and Undervoltage Relays RS PRO 3 phase voltage monitoring relays are used to connect to 3 or 4 wire power supplies.
This relay is designed to monitor its own power supply and, in combination with an external contactor, interrupt the supply to the load/equipment in the event of a fault.
For the function output relay to be energized, all phases (and neutral, if applicable) must be present and with phase voltages measured within the set trip levels.
The product does not monitor phase rotation/sequence.
If any of these conditions are not met, the relay ( + contactor) will de-energize, cutting off the power supply and protecting the equipment.
Features and Benefits Compact 17.5 mm DIN rail housing Microprocessor based Measures and monitors true RMS phase-to-phase voltage (3-wire) or phase-to-neutral voltage (4-wire) Selectable nominal voltage to match most common 3-wire or 4-wire supply voltages Monitors its own power supply and detects undervoltage conditions on one or more phases Detects incorrect phase sequence, phase loss, and neutral loss1 Adjustable undervoltage trip level Adjustable time delay DPDT relay output: 5 A Green LED indicates power status Red LED indicates relay status Electrical Specifications Inputs: L1, L2, L3, N Power/Monitoring Voltage Un: This product offers a choice of six nominal voltages 3-wire monitoring: 380, 400, 415 V ac 4-wire monitoring: 220, 230, 240 V ac Frequency range: 48 to 63 Hz Line voltage variations : 243-540V AC (L>) Overvoltage Category III (IEC60664) Rated impulse withstand voltage: 4 kV (1.2/50 μs) Power consumption (max): 2.5VA Outputs: 15, 16, 18/25, 26, 28 Relay settings: DPDT Output ratings: 1 → 250 V AC 5 A, 15 → 250 V AC 2 A, 1 → 25 V DC 5 A Electrical life: More than 150,000 operations at rated load Dielectric voltage: 2 kV AC (rms) IEC60947-7-1 Rated impulse withstand voltage: 4 kV (1.2/50 μs) IEC 60664 Dimensions W: 17.5 mm x H: 89 mm x D: 66.5 mmNote: For specifications and setup details, please refer to the RS PRO data sheet.