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Farnell offers phase monitoring relays that protect three-phase systems from phase loss, phase reversal and imbalance. These relays are designed to prevent motor damage and ensure stable operation.

Phase monitoring relays measure phase sequence, phase loss and voltage balance in three-phase systems. If any discrepancy is detected, the relay disconnects the load to prevent motor failure.

Key Features:

  • Phase loss and reversal protection for motors and equipment.
  • Adjustable voltage range for versatile use.
  • Compact design for easy installation in control panels.

Applications:

  • Industrial Motors – Ensure proper phase alignment and prevent damage.
  • HVAC Systems – Maintain stable operation in multi-phase compressors.
  • Renewable Energy – Monitor phase balance in solar and wind systems.
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ComparePrice ForQuantity
3214139

RoHS

Each
1+
kr 1,822.060
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
18VA
300VAC
500VAC
-
2102318

RoHS

Each
1+
kr 1,890.000
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Spring Clamp
300VAC
500VAC
3 Phase
18VA
300VAC
500VAC
UL
3214137

RoHS

Each
1+
kr 1,472.520
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
250VAC
400VAC
3 Phase
18VA
360VAC
440VAC
-
4713017

RoHS

Each
1+
kr 1,219.080
Min: 1 / Mult: 1
DPA55 Series
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
18VA
177VAC
550VAC
-
2102313

RoHS

Each
1+
kr 1,006.850
5+
kr 950.500
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
300VAC
400VAC
3 Phase
18VA
-
400VAC
UL
2102321

RoHS

Each
1+
kr 1,295.250
5+
kr 1,234.900
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
300VAC
280VAC
3 Phase
18VA
180VAC
280VAC
UL
2102315

RoHS

Each
1+
kr 1,275.050
5+
kr 1,203.800
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Spring Clamp
300VAC
500VAC
3 Phase
18VA
300VAC
500VAC
UL
2102311

RoHS

Each
1+
kr 1,088.350
5+
kr 1,045.050
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Spring Clamp
300VAC
500VAC
3 Phase
18VA
300VAC
500VAC
UL
2102312

RoHS

Each
1+
kr 840.350
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
300VAC
380VAC
3 Phase
18VA
-
380VAC
UL
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