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Farnell provides a wide range of current monitoring relays, ensuring reliable protection for electrical systems in industrial and commercial settings. With various current thresholds and adjustable settings, our relays deliver precise monitoring and quick response to overcurrent and undercurrent conditions.

Current monitoring relays detect abnormal current flow in electrical circuits. They protect motors, transformers and other electrical equipment by disconnecting the circuit when a current fault is detected, preventing overheating and equipment damage.

Key Features:

  • Adjustable current ranges and trip delays for tailored protection.
  • Overcurrent and undercurrent detection to prevent motor burnout.
  • Single-phase and three-phase compatibility for versatile use.

Applications:

  • Motor Protection – Prevent damage from overloading and phase imbalance.
  • Power Distribution – Maintain stability in electrical grids.
  • Industrial Equipment – Ensure smooth operation of heavy machinery.
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4319898

RoHS

Each
1+
€231.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
SPDT
3A
DIN Rail
400V
Screw
250V
240V
50mA
10A
-
3484496

RoHS

Each
1+
€329.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
230V
Screw
-
24VDC
1.6A
16A
2.5W
3484469

RoHS

Each
1+
€127.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
1V
1.6A
16A
2.5W
3484482

RoHS

Each
1+
€255.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
24VDC
1.6A
16A
2.5W
3484493

RoHS

Each
1+
€392.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
240V
8A
80A
2.5W
3484492

RoHS

Each
1+
€371.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
24VDC
8A
80A
2.5W
3484485

RoHS

Each
1+
€281.050
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
240V
1.6A
16A
2.5W
3484477

RoHS

Each
1+
€178.920
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
240V
4A
40A
2.5W
3484489

RoHS

Each
1+
€289.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
24VDC
4A
40A
2.5W
3484491

RoHS

Each
1+
€306.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
240V
4A
40A
2.5W
3484473

RoHS

Each
1+
€154.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
24VDC
4A
40A
2.5W
3484472

RoHS

Each
1+
€153.060
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
240V
1.6A
16A
2.5W
3484495

RoHS

Each
1+
€399.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw, Spring
-
240V
8A
80A
2.5W
3484470

RoHS

Each
1+
€145.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
240V
1.6A
16A
2.5W
3484499

RoHS

Each
1+
€382.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
230V
Spring
-
24VDC
4A
40A
2.5W
3484487

RoHS

Each
1+
€306.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
240V
4A
40A
2.5W
3484498

RoHS

Each
1+
€382.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
230V
Screw
-
24VDC
4A
40A
2.5W
3484483

RoHS

Each
1+
€272.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
240V
1.6A
16A
2.5W
3484471

RoHS

Each
1+
€136.890
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
24VDC
1.6A
16A
2.5W
3484475

RoHS

Each
1+
€162.760
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
24VDC
4A
40A
2.5W
3484481

RoHS

Each
1+
€237.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
240V
8A
80A
2.5W
3484474

RoHS

Each
1+
€169.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
240V
4A
40A
2.5W
3484486

RoHS

Each
1+
€289.000
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
24VDC
4A
40A
2.5W
3484479

RoHS

Each
1+
€245.260
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
240V
8A
80A
2.5W
3484484

RoHS

Each
1+
€268.420
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
24VDC
1.6A
16A
2.5W
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