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Protection & Monitoring Relays

Relays that protect and monitor electrical systems: voltage, current, phase, earth leakage and power factor control.

Minilec S2 DVMR Phase Failure Relay

Minilec S2 DVMR phase failure relay with (1 CO + 1 CO) / 2 CO output. Typical uses: hoist motor control, 3 ph. split AC machines, agricultural pump starters.

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Selec ELRA2M Earth Leakage Relay ELRA2M

Selec ELRA2M earth leakage relay: output 1 C / O (SPDT ), 230V AC (±15%) supply, 35mm, DIN rail mount.

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Multispan VPR-33N Voltage and Frequency Protection Relay, Digital DIN Rail

Digital DIN-rail 3-phase relay with 3+3 display and programmable over / under voltage, over / under frequency, asymmetry, phase loss and sequence trips; 2-relay option.

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Rishabh 252-PVV 3 Phase 4 Wire Under Voltage Relay, Adjustable Differential

3 Phase 4 Wire AC under voltage relay with adjustable differential (1 - 15%), setpoint 75 - 100% of nominal; factory-set time delay up to 30 s.

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Minilec S2 ELR1 Earth Fault / Earth Leakage Relay

Minilec S2 ELR1 earth fault / earth leakage relay with 2 CO output.

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Selec PPRA Pump Protection Relay PPRA

Selec PPRA pump protection relay: DIN 66.50 x 70 x 90 (H x W x L), DIN rail mount.

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Multispan VR-3K Voltage Protection Relay, Analog DIN Rail

Self-powered DIN-rail voltage relay for 3-phase 3-wire supplies (280-520 V AC) with under- and over-voltage limits and trip delay set by knobs, plus phase loss, sequence and asymmetry trips.

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Rishabh 252-PVX 3 Phase 4 Wire Under Voltage Relay, Adjustable Time Delay

3 phase 4 wire AC under voltage relay with user-adjustable time delay up to 10 s and 75 - 100% setpoint, for 57 - 480 V systems; DPDT contacts, auto reset.

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Minilec S2 ELR2 Earth Fault / Earth Leakage Relay

Minilec S2 ELR2 earth fault / earth leakage relay with 2 CO output, for 100-110/240/415 V AC / 24V DC ± 20% supply. Typical uses: generator panels, AMF panels, MCC panels, synchronizing control panels.

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Selec PPRD-4M-1-230V Digital Pump Protection Relay PPRD-4M-1-230V

Selec PPRD-4M-1-230V digital pump protection relay: 66.50 x 70 x 90 (H x W x L), DIN rail mount.

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Multispan WLC-22 Water Level Controller, 3 Probe

Compact 22.5 mm DIN-rail water level controller using 3 probes, with adjustable sensitivity (1 kΩ to 200 kΩ) and level LEDs, protecting the pump from dry running and overflow.

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Rishabh 252-PVZ Single Phase Under Voltage Relay, Adjustable Time Delay

Single phase AC under voltage relay with user-adjustable time delay up to 10 s and 75 - 100% setpoint, for 57 - 480 V systems; DPDT contacts, auto reset.

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Minilec S2 FMR1 Frequency Monitoring Relay

Minilec S2 FMR1 frequency monitoring relay with 1 CO + 1 CO / 2 CO output, for 240 V AC ± 20% supply. Typical uses: AMF panels, generator panels, induction heater control panels.

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Selec PPRD-4M-3-415V Digital Pump Protection Relay PPRD-4M-3-415V

Selec PPRD-4M-3-415V digital pump protection relay: 66.50 x 70 x 90 (H x W x L), DIN rail mount.

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Multispan WLC-35 Water Level Controller, 6 Probe

DIN-rail water level controller for an upper and lower tank using 6 probes, with adjustable sensitivity (1 kΩ to 1 MΩ), delay and level LEDs, protecting the pump from dry running and overflow.

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Rishabh 253-EFR Earth Fault Relay

Earth fault relay for CBCT, neutral or summation CTs with 1 A or 5 A secondary: trip setting 10 - 90%, delay 1 - 10 s or instantaneous, manual / remote reset, 230 V AC aux.

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Minilec S2 VMR1 Phase Failure Relay

Minilec S2 VMR1 phase failure relay with 2 CO output. Typical uses: inverter, UPS, 3 phase AC panel.

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Selec PPRWD-4M-1 Digital Pump Protection Relay PPRWD-4M-1

Selec PPRWD-4M-1 digital pump protection relay: 66.50 x 70 x 90 (H x W x L), DIN rail mount.

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Multispan WTR-35 Winding Temperature Relay (Thermistor Relay)

DIN-rail thermistor relay that trips a motor when its PTC winding sensors detect overheating, with fault LEDs and one relay with two changeover contacts. 50-550 V AC supply.

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Rishabh 253-MPR Motor Protection Relay (Phase Loss, Reversal, Unbalance)

Motor protection relay using negative sequence voltage sensing: trips on phase reversal, phase loss and voltage unbalance (30 - 70 V), delay 3.5 s; auto, manual or remote reset.

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Minilec S2 VMR2 Phase Failure Relay

Minilec S2 VMR2 phase failure relay with 2 CO output. Typical uses: AC & R chiller compressor motors, AHU fan /pump motors, hoist & crane.

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Selec SPPA2M2 Phase Failure Relay SPPA2M2

Selec SPPA2M2 phase failure relay: 280 to 520V AC(L-L) supply, 35 X 90 mm, DIN rail mount.

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Rishabh 253-PAD Single Phase Under & Over Current Relay

Single-phase combined under and over current relay with 2 relays and 2 independent setpoints (40 - 120%), adjustable delay up to 10 s; DPDT contacts, auto reset.

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Minilec S2 VMR3 Phase Failure Relay

Minilec S2 VMR3 phase failure relay with 2 CO output. Typical uses: AC & R chiller compressor motors, AHU fan /pump motors, hoist & crane.

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