Protection & Monitoring Relays

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

Selec VPRA2M-CE Voltage Protection Relay VPRA2M-CE

Selec VPRA2M-CE voltage protection relay: output 2 C/O (DPDT ), 127 to 288V AC (L-N) supply, 35mm, DIN rail mount.

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Rishabh 253-PAP 3 Phase Phase Over Current Relay

3-phase 3 or 4 wire AC over current relay from 1 A / 5 A CT: trips when the current exceeds the 40 - 120% setpoint after an adjustable delay up to 10 s; DPDT contacts, auto reset.

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Minilec S2 VMR4 Voltage Monitoring Relay

Minilec S2 VMR4 voltage monitoring relay with 1 CO + 1 CO / 2 CO output. Typical uses: battery charger panels, generator set panels, auto mains failure panels.

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Selec VPRD-2 Digital Voltage Protection Relay VPRD-2

Selec VPRD-2 digital voltage protection relay: output 2 x 1C/O (SPDT), 280 to 520V AC (L-L), 160 to 300V AC (L-N) supply, 35mm, DIN rail mount.

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Rishabh 253-PAV 3 Phase Phase Under Current Relay

3-phase 3 or 4 wire AC under current relay from 1 A / 5 A CT: trips when the current falls below the 40 - 120% setpoint after an adjustable delay up to 10 s; DPDT contacts, auto reset.

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Minilec S2 VMR5 Voltage Monitoring Relay

Minilec S2 VMR5 voltage monitoring relay with 1 CO + 1 CO / 2 CO output. Typical uses: battery charger panels, generator set panels, auto mains failure panels.

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Selec VPRD2M Digital Voltage Protection Relay VPRD2M

Selec VPRD2M digital voltage protection relay: output 2 C/O (DPDT ), 127 to 288V AC (L-N) supply, 35 mm, DIN rail mount.

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Rishabh 253-PBV Transducer Trip Relay, High / Low

Trip relay for transducer outputs (0-1 to 4-20 mA or 1 - 50 V DC) with combined high and low trip points; adjustable setpoints and delay, DPDT contacts.

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Minilec S2 VMR6 Phase Failure Relay

Minilec S2 VMR6 phase failure relay with 2 CO output, for 415 VAC ± 20% supply. Typical uses: hoist motor control, 3 ph. split AC machines, agricultural pump starters.

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Rishabh 253-PHD Under & Over Frequency Relay

Under & Over frequency relay for 50, 60 or 400 Hz systems with adjustable setpoint and differential (0.1 - 3.0 Hz at 50 / 60 Hz); for genset speed, standby and mains supplies.

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Minilec S2 VMR8 Phase Failure Relay

Minilec S2 VMR8 phase failure relay with 2 CO output, for 415 VAC ± 20% supply. Typical uses: hoist motor control, 3 ph. split AC machines, agricultural pump starters.

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Rishabh 253-PVB Single Phase Under & Over Voltage Relay, Adjustable Differential

Single Phase AC under & over voltage relay with adjustable differential (1 - 15%), 2 relays and 2 setpoints, setpoint 75 - 125% of nominal; factory-set time delay up to 30 s.

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Minilec USP D1 Phase Failure Relay

Minilec USP D1 phase failure relay with 1 CO output, for 415 VAC ± 20%, 50 Hz ± 3% supply. Typical uses: hoist motor control, 3 ph. split AC machines, agricultural pump starters.

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Rishabh 253-PVE 3 Phase 4 Wire Under & Over Voltage Relay, Adjustable Differential

3 Phase 4 Wire AC under & over voltage relay with adjustable differential (1 - 15%), 2 relays and 2 setpoints, setpoint 75 - 125% of nominal; factory-set time delay up to 30 s.

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Minilec VPG D1 Phase Failure Relay

Minilec VPG D1 phase failure relay with 1 CO output, for 415 V AC ± 20%, 50 Hz ± 3% supply. Typical uses: open well pumps, agricultural pump starters.

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Rishabh 253-PVM 3 Phase 3 Wire Under & Over Voltage Relay, Adjustable Differential

3 Phase 3 Wire AC under & over voltage relay with adjustable differential (1 - 15%), 2 relays and 2 setpoints, setpoint 75 - 125% of nominal; factory-set time delay up to 30 s.

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Minilec VSP2 Phase Failure Relay for Agricultural Pumps

Minilec VSP2 phase failure relay for agricultural pumps with 1 NO output, for 415 VAC ± 20%, 50 Hz ± 3% supply. Typical uses: hoist motor control, 3 ph. split AC machines, agricultural pump starters.

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Rishabh 256-PAS Reverse Power Relay

Reverse power relay for generator sets and feeders: detects loss of the prime mover and prevents motoring; trip adjustable 2 - 20% of rated current, delay 0 - 20 s.

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Minilec VSP3 Phase Failure Relay for Agricultural Pumps

Minilec VSP3 phase failure relay for agricultural pumps with 1 NO output, for 415 VAC ± 20%, 50 Hz ± 3% supply. Typical uses: hoist motor control, 3 ph. split AC machines, agricultural pump starters.

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Rishabh 256-PCC Hot Spot 6 RTD Temperature Relay

Temperature trip relay for up to six RTD sensors (Pt100 or 10 Ω copper) in motors or transformers; 100 °C adjustment span, operating time < 100 ms, automatic reset.

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Minilec VSP D1 Phase Failure Relay

Minilec VSP D1 phase failure relay with 1 CO output. Typical uses: hoist motor control, 3 ph. split AC machines, agricultural pump starters.

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Rishabh 256-PHV Combined Under / Over Voltage & Frequency Relay

Generator and supply monitor in one: under / over voltage (75 - 125%) and under / over frequency setpoints with adjustable delays of 1 - 30 s; for 50, 60 or 400 Hz systems.

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Minilec VSP D2 Phase Failure Relay

Minilec VSP D2 phase failure relay with 2 CO output. Typical uses: inverter, UPS, 3 phase AC panel.

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Rishabh 256-PLD Synchro-Check Relay, Live & Dead Bus

Synchro-check relay with dead bus detection: energises when the two supplies match, or when the bus is dead so a generator can connect without synchronising.

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