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Current Monitoring Relays:

136 Products Found

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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ComparePrice ForQuantity
3487971

RoHS

Each
1+
kr 2,593.640
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
3484499

RoHS

Each
1+
kr 2,934.730
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
230V
Spring
-
24VDC
4A
40A
2.5W
-
3484487

RoHS

Each
1+
kr 2,280.620
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
240V
4A
40A
2.5W
-
3487976

RoHS

Each
1+
kr 2,102.260
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
3484495

RoHS

Each
1+
kr 2,973.740
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw, Spring
-
240V
8A
80A
2.5W
-
2102338

RoHS

Each
1+
kr 1,442.050
5+
kr 1,361.400
Min: 1 / Mult: 1
-
SPDT
4A
DIN Rail
250VAC
Screw
-
240V
300mA
15A
750mW
UL
2102344

RoHS

Each
1+
kr 939.600
Min: 1 / Mult: 1
-
SPDT
4A
DIN Rail
250VAC
Screw
-
130VAC
300mA
15A
2.6VA
UL
2102337

RoHS

Each
1+
kr 1,437.000
5+
kr 1,354.950
Min: 1 / Mult: 1
-
SPDT
4A
DIN Rail
250VAC
Screw
-
240V
3mA
1A
750mW
UL
2102345

RoHS

Each
1+
kr 1,218.550
5+
kr 1,162.350
Min: 1 / Mult: 1
-
SPDT
4A
DIN Rail
250VAC
Screw
-
240V
300mA
15A
2.6VA
UL
2102354

RoHS

Each
1+
kr 1,372.600
5+
kr 1,308.650
Min: 1 / Mult: 1
-
DPDT
4A
DIN Rail
250VAC
Screw
-
240V
300mA
15A
750mW
UL
2102343

RoHS

Each
1+
kr 1,297.400
5+
kr 1,238.050
Min: 1 / Mult: 1
-
SPDT
4A
DIN Rail
250VAC
Screw
-
240V
300mA
15A
750mW
UL
2102342

RoHS

Each
1+
kr 919.100
Min: 1 / Mult: 1
-
SPDT
4A
DIN Rail
250VAC
Screw
-
240V
3mA
1A
2.6VA
UL
2102340

RoHS

Each
1+
kr 848.400
Min: 1 / Mult: 1
-
SPDT
4A
DIN Rail
250VAC
Screw
-
130VAC
3mA
1A
2.6VA
UL
2102348

RoHS

Each
1+
kr 939.600
Min: 1 / Mult: 1
-
DPDT
4A
DIN Rail
250VAC
Screw
-
240V
3mA
1A
2.6VA
UL
2102347

RoHS

Each
1+
kr 895.750
Min: 1 / Mult: 1
-
DPDT
4A
DIN Rail
250VAC
Screw
-
130VAC
3mA
1A
2.6VA
UL
3484471

RoHS

Each
1+
kr 1,020.240
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
24VDC
1.6A
16A
2.5W
-
3484475

RoHS

Each
1+
kr 1,213.050
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
24VDC
4A
40A
2.5W
-
3484481

RoHS

Each
1+
kr 1,766.360
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
240V
8A
80A
2.5W
-
3484512

RoHS

Each
1+
kr 2,690.530
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
3484479

RoHS

Each
1+
kr 1,823.450
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
240V
8A
80A
2.5W
-
3484502

RoHS

Each
1+
kr 1,505.500
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
3558890

RoHS

Each
1+
kr 8,198.290
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
3487974

RoHS

Each
1+
kr 1,887.470
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
3484486

RoHS

Each
1+
kr 2,153.910
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Screw
-
24VDC
4A
40A
2.5W
-
3484480

RoHS

Each
1+
kr 1,609.850
Min: 1 / Mult: 1
SIRIUS 3RR2
SPST
3A
Contactor
400V
Spring
-
24VDC
8A
80A
2.5W
-
101-125 of 136 items
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