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Phase Monitoring Relays:

164 Products Found

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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3484527

RoHS

Each
1+
kr 1,296.820
Min: 1 / Mult: 1
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4713109

RoHS

Each
1+
kr 2,154.470
Min: 1 / Mult: 1
DPC01 Series
2 x SPDT
5A
DIN Rail
-
Screw
24VDC
690VAC
-
3 Phase
7VA
510VAC
793VAC
-
4713017

RoHS

Each
1+
kr 1,288.790
Min: 1 / Mult: 1
DPA55 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
18VA
177VAC
550VAC
-
4312771

RoHS

Each
1+
kr 1,652.470
Min: 1 / Mult: 1
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4713135

RoHS

Each
1+
kr 1,008.110
Min: 1 / Mult: 1
PPA01 Series
2 x DPDT
3A
Socket
-
Plug In
250VAC
415VAC
-
3 Phase
10VA
323V
477V
-
4247877

RoHS

Each
1+
kr 2,496.590
Min: 1 / Mult: 1
CM-MPN Series
DPDT
4A
DIN Rail
-
Push In
250VAC
820VAC
-
3 Phase
59VA
530VAC
820VAC
-
4312768

RoHS

Each
1+
kr 2,243.540
Min: 1 / Mult: 1
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-
-
-
-
-
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4312772

RoHS

Each
1+
kr 1,346.010
Min: 1 / Mult: 1
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4713133

RoHS

Each
1+
kr 2,344.640
Min: 1 / Mult: 1
DPC02 Series
2 x SPDT
5A
DIN Rail
-
Screw
24VDC
690VAC
-
3 Phase
7VA
177VAC
793VAC
-
4244638

RoHS

Each
1+
kr 573.030
5+
kr 561.600
10+
kr 550.100
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
-
Push In
400VAC
415VAC
-
3 Phase
1W
208VAC
480VAC
-
4312770

RoHS

Each
1+
kr 1,071.020
Min: 1 / Mult: 1
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2056339

RoHS

Each
1+
kr 460.300
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183VAC
528VAC
-
2056340

RoHS

Each
1+
kr 649.700
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183VAC
528VAC
-
2987237

RoHS

OMRON INDUSTRIAL AUTOMATION
Each
1+
kr 525.510
5+
kr 512.470
10+
kr 499.200
25+
kr 472.970
50+
kr 446.730
Min: 1 / Mult: 1
K8AK-PH Series
DPDT-NC
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
4.1VA
200VAC
480VAC
-
3487981

RoHS

Each
1+
kr 2,586.190
Min: 1 / Mult: 1
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-
-
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-
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3484528

RoHS

Each
1+
kr 1,162.670
Min: 1 / Mult: 1
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3484532

RoHS

Each
1+
kr 1,662.020
Min: 1 / Mult: 1
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-
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2064123

RoHS

Each
1+
kr 293.210
2+
kr 275.900
5+
kr 233.700
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
3VA
208VAC
480VAC
-
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
3487979

RoHS

Each
1+
kr 2,466.940
Min: 1 / Mult: 1
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3487980

RoHS

Each
1+
kr 2,556.380
Min: 1 / Mult: 1
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3484514

RoHS

Each
1+
kr 1,006.150
Min: 1 / Mult: 1
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1896001

RoHS

Each
1+
kr 658.050
5+
kr 637.150
10+
kr 619.500
Min: 1 / Mult: 1
CM-PBE
SPST-NO
-
DIN Rail
-
Screw
-
440VAC
-
3 Phase
-
220VAC
440VAC
UL
3484529

RoHS

Each
1+
kr 1,363.900
Min: 1 / Mult: 1
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-
-
-
-
-
-
-
-
-
-
-
-
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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
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