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Monitoring Relays

Monitoring relays are a type of relay that trips a circuit breaker when a fault is detected. A relay is an electrically controlled switch that is used to turn the power on or off in a circuit.

Monitoring relays are more sophisticated than regular relays, as they have adjustable operating conditions, whereas normal relays switch according to a fixed threshold. They measure a given p...

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RS PRO DIN Rail Phase Monitoring Relay, 3 Phase, SPDT
RS Stock No. 223-7792
Brand RS PRO

£ 85.57

Each

Add to basket
RS Pro
Phase
SPDT
Overvoltage Protection, Undervoltage Protection
3
-
-
-
-
-
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-20°C
-
-
+60°C
-
-
66.5mm
-20 → +60°C
Screw
90mm
17.5 x 90 x 66.5mm
RS PRO DIN Rail Phase Monitoring Relay, 3 Phase, SPDT
RS Stock No. 223-7794
Brand RS PRO

£ 99.12

Each

Add to basket
RS Pro
Phase
SPDT
Overvoltage Protection, Undervoltage Protection
3
-
-
-
-
-
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-20°C
-
-
+60°C
-
-
66.5mm
-20 → +60°C
Screw
90mm
17.5 x 90 x 66.5mm
RS PRO DIN Rail Phase Monitoring Relay, 3 Phase, SPDT
RS Stock No. 223-7795
Brand RS PRO

£ 74.36

Each

Add to basket
RS Pro
Phase
SPDT
Overvoltage Protection, Undervoltage Protection
3
-
-
-
-
-
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-20°C
-
-
+60°C
-
-
66.5mm
-20 → +60°C
Screw
90mm
17.5 x 90 x 66.5mm
RS PRO DIN Rail Phase Voltage Monitoring Relay, 3 Phase, 2CO
RS Stock No. 223-7790
Brand RS PRO

£ 124.92

Each

Add to basket
RS Pro
Phase Voltage
2CO
Overvoltage Protection, Undervoltage Protection
3
-
-
-
-
-
2 → 999s
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-10°C
-
-
+60°C
-
-
66.21mm
-10 → +60°C
Screw
36mm
36 x 90 x 67mm
RS PRO DIN Rail Phase Voltage Monitoring Relay, 3 Phase, 2CO
RS Stock No. 223-7789
Brand RS PRO

£ 116.59

Each

Add to basket
RS Pro
Phase Voltage
2CO
Overvoltage Protection, Undervoltage Protection
3
-
-
-
-
-
2 → 999s
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-10°C
-
-
+60°C
-
-
66.21mm
-10 → +60°C
Screw
36mm
36 x 90 x 67mm
RS PRO DIN Rail Phase, Voltage Monitoring Relay, 3 Phase, 1CO
RS Stock No. 223-7788
Brand RS PRO

£ 108.21

Each

Add to basket
RS Pro
Phase, Voltage
1CO
Overvoltage Protection, Undervoltage Protection
3
-
-
-
-
-
2 → 999s
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-10°C
-
-
+60°C
-
-
66.21mm
-10 → +60°C
Screw
36mm
36 x 90 x 67mm
RS PRO DIN Rail Phase Monitoring Relay, 3 Phase, SPDT
RS Stock No. 223-7791
Brand RS PRO

£ 82.08

Each

Add to basket
RS Pro
Phase
SPDT
Overvoltage Protection, Undervoltage Protection
3
-
-
-
-
-
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-20°C
-
-
+60°C
-
-
66.5mm
-20 → +60°C
Screw
90mm
17.5 x 90 x 66.5mm
RS PRO DIN Rail Voltage Monitoring Relay, 243 → 540 V, 3 Phase, DPDT
RS Stock No. 225-7385
Brand RS PRO

£ 105.99

Each

Add to basket
RS Pro
Voltage
DPDT
Undervoltage
3
243 → 540 V
-
-
-
Phase Asymmetry, Phase Failure, Phase Sequence
0.2 → 10s
-
-
DIN Rail
-
-
-
-
243 V
540V
-
Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Asymmetry Trip Level, Adjustment For Time Delay, Green Led Indication For Supply Status
-
-20°C
-
-
+60°C
-
66.5mm
89mm
-20 → +60°C
Screw
17.5mm
89 x 17.5 x 66.5mm

£ 81.12

Each

Add to basket
RS Pro
Phase, Voltage
DPDT
Undervoltage
3
243 → 540 V
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
-
-
DIN Rail, Surface Mount
-
-
-
-
243 V
540V
-
Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Under Voltage Trip Level, Adjustment For Time Delay
-
-20°C
-
-
+60°C
-
66.5mm
89mm
-20 → +60°C
Screw
17.5mm
89 x 17.5 x 66.5mm
RS PRO DIN Rail Phase, Voltage Monitoring Relay, 3 Phase, DPDT
RS Stock No. 225-7387
Brand RS PRO

£ 102.89

Each

Add to basket
RS Pro
Phase, Voltage
DPDT
Overvoltage, Undervoltage
3
-
-
-
-
Phase Failure, Phase Sequence
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Screw
17.5mm
-
RS PRO DIN Rail Voltage Monitoring Relay, 3 Phase, DPDT
RS Stock No. 225-7386
Brand RS PRO

£ 106.82

Each

Add to basket
RS Pro
Voltage
DPDT
Overvoltage, Undervoltage
3
-
-
-
-
-
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Screw
17.5mm
-
RS PRO DIN Rail, Surface Mount Phase Monitoring Relay, 3 Phase
RS Stock No. 225-7384
Brand RS PRO

£ 51.74

Each

Add to basket
RS Pro
Phase
-
-
3
-
-
-
-
Phase Failure, Phase Sequence
-
-
-
DIN Rail, Surface Mount
-
-
-
-
-
-
-
3 LEDs for Phase presence status, Sequence Status,
-
-20°C
-
-
+60°C
-
-
66.5mm
-20 → +60°C
Screw
17.5mm
-
RS PRO DIN Rail Voltage Monitoring Relay, 12 → 24V dc, 1 Phase, SPDT
RS Stock No. 102-6130
Brand RS PRO

£ 53.73

Each

Add to basket
RS Pro
Voltage
SPDT
Undervoltage
1
12 → 24V dc
-
-
-
-
0 → 30s
-
-
DIN Rail
-
L
-
-
12V dc
24V dc
-
-
-
-20°C
-
-
+60°C
1
89mm
66.5mm
+60°C
Screw
17.5mm
17.5 x 66.5 x 89mm
RS PRO DIN Rail Phase, Voltage Monitoring Relay, 48 → 63Hz, 3 Phase, SPDT
RS Stock No. 102-6136
Brand RS PRO

£ 59.13

Each

Add to basket
RS Pro
Phase, Voltage
SPDT
Undervoltage
3
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
-
-
DIN Rail
48 → 63Hz
L
-
-
-
-
-
2 LEDs for the Indication of Operational States, Adjustment for Time Delay, Adjustment for Undervoltage Trip Level, Detects Incorrect Phase Sequence & Phase Loss, Measures Phase to Phase Voltages, Microprocessor Based Relay, Monitors Own Supply & Detects an Undervoltage Condition on One or more Phases, True RMS Monitoring
-
-20°C
-
-
+60°C
1
89mm
66.5mm
+60°C
Screw
17.5mm
17.5 x 66.5 x 89mm

£ 56.46

Each

Add to basket
RS Pro
Phase, Voltage
SPDT
Undervoltage
3
Maximum of 280 V
-
-
-
Phase Failure, Phase Sequence
100ms
-
-
DIN Rail
48 → 63Hz
L
-
-
-
280V
-
2 LEDs for the Indication of Operational States, Detects Incorrect Phase Sequence & Phase Loss, Fixed Time Delay, Fixed Undervoltage Trip Level, Measures Phase to Phase Voltages, Microprocessor Based Relay, Monitors Own Supply & Detects an Undervoltage Condition on One or more Phases, True RMS Monitoring
-
-20°C
-
-
+60°C
1
89mm
66.5mm
+60°C
Screw
17.5mm
17.5 x 66.5 x 89mm

£ 104.07

Each

Add to basket
RS Pro
Voltage
SPDT
Overvoltage, Undervoltage
1
Maximum of 500 V
-
-
-
-
0.1 → 30s
-
-
DIN Rail
48 → 63Hz
L
-
-
-
500V
-
-
-
-20°C
-
-
+60°C
1
89mm
66.5mm
+60°C
Screw
17.5mm
17.5 x 66.5 x 89mm

£ 104.07

Each

Add to basket
RS Pro
Current
SPDT
-
1
-
Overcurrent, Undercurrent
1A
10A
-
0.1 → 30s
-
-
DIN Rail
48 → 63Hz
L
-
-
-
-
-
Green LED Indication for Supply Status
-
-20°C
-
1 → 10A
+60°C
1
89mm
66.5mm
+60°C
Screw
17.5mm
66.5 x 17.5 x 89mm
RS PRO DIN Rail Phase, Voltage Monitoring Relay, 48 → 63Hz, 3 Phase, SPDT
RS Stock No. 102-6137
Brand RS PRO

£ 76.41

Each

Add to basket
RS Pro
Phase, Voltage
SPDT
Overvoltage, Undervoltage
3
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
-
-
DIN Rail
48 → 63Hz
L
-
-
-
-
-
2 LEDs for the Indication of Operational States, Adjustment for Time Delay, Adjustment for Undervoltage Trip Level, Detects Incorrect Phase Sequence & Phase Loss, Measures Phase to Phase Voltages, Microprocessor Based Relay, Monitors Own Supply & Detects an Undervoltage Condition on One or more Phases, True RMS Monitoring
-
-20°C
-
-
+60°C
1
89mm
66.5mm
+60°C
Screw
17.5mm
17.5 x 66.5 x 89mm
RS PRO DIN Rail Voltage Monitoring Relay, 48 → 63Hz, 1 Phase, SPDT
RS Stock No. 102-6131
Brand RS PRO

£ 58.88

Each

Add to basket
RS Pro
Voltage
SPDT
Overvoltage, Undervoltage
1
-
-
-
-
-
0.2 → 10s
-
-
DIN Rail
48 → 63Hz
L
-
-
-
-
-
2 LEDs for the Indication of Operational States, Adjustment for Time Delay, Adjustment for Undervoltage Trip Level, Microprocessor Based Relay, Monitors Own Supply & Detects if The Supply Exceeds The Set Under or Over Voltage Trip Levels, True RMS Monitoring
-
-20°C
-
-
+60°C
1
89mm
66.5mm
+60°C
Screw
17.5mm
17.5 x 66.5 x 89mm
Broyce Control DIN Rail Phase Monitoring Relay, 320 → 490V ac, 48 → 63Hz, 3 Phase
RS Stock No. 206-1444
Brand Broyce Control
Manufacturers Part No. LPPI

£ 47.19

Each

Add to basket
Broyce Control
Phase
-
-
3
320 → 490V ac
-
-
-
Phase Failure, Phase Sequence
-
-
-
DIN Rail
48 → 63Hz
L
-
-
490V ac/dc
-
-
-
-
-20°C
-
-
+60°C
-
89mm
59mm
+60°C
Screw
17.5mm
59 x 17.5 x 89mm

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