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Phase Monitoring Relays:

187 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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ComparePrice ForQuantity
1655788

RoHS

Each
1+
US$342.839
Total:US$342.84
Min: 1 / Mult: 1
DPB01 Series
SPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
13VA
323VAC
550VAC
-
2064124

RoHS

Each
1+
US$67.576
2+
US$63.449
5+
US$52.702
Total:US$67.58
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
3484527

RoHS

Each
1+
US$154.542
Total:US$154.54
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484535

RoHS

Each
1+
US$256.677
Total:US$256.68
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4247877

RoHS

Each
1+
US$382.945
Total:US$382.94
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Push In
250VAC
820VAC
-
3 Phase
59VA
530VAC
820VAC
-
4244638

RoHS

Each
1+
US$102.832
5+
US$100.781
10+
US$98.718
Total:US$102.83
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
-
Push In
400VAC
415VAC
-
3 Phase
1W
208VAC
480VAC
-
4312770

RoHS

Each
1+
US$160.358
Total:US$160.36
Min: 1 / Mult: 1
DPB52 Series
SPDT
5A
DIN Rail
-
-
480VAC
208VAC
-
3 Phase
2VA
480VAC
208VAC
-
4825120
Each
1+
US$56.816
Total:US$56.82
Min: 1 / Mult: 1
LPPI Series
-
-
DIN Rail
-
Screw
-
490VAC
-
3 Phase (3 Wire)
4VA
320VAC
490VAC
-
4300429

RoHS

Each
1+
US$166.776
5+
US$141.397
10+
US$138.569
Total:US$166.78
Min: 1 / Mult: 1
DPB51 Series
SPDT
5A
DIN Rail, Panel
-
Screw
250VAC
-
-
3 Phase
13VA
208VAC
480VAC
-
4713109

RoHS

Each
1+
US$346.363
Total:US$346.36
Min: 1 / Mult: 1
DPC01 Series
2 x SPDT
5A
DIN Rail
-
Screw
24VDC
690VAC
-
3 Phase
7VA
510VAC
793VAC
-
4713017

RoHS

Each
1+
US$232.477
Total:US$232.48
Min: 1 / Mult: 1
DPA55 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
18VA
177VAC
550VAC
-
4312771

RoHS

Each
1+
US$247.404
Total:US$247.40
Min: 1 / Mult: 1
DWA01 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4825119
Each
1+
US$96.480
Total:US$96.48
Min: 1 / Mult: 1
LXPRC/S/RD Series
SPDT
8A
DIN Rail
-
Screw
250VAC
460VAC
-
3 Phase
8VA
380VAC
460VAC
-
4312772

RoHS

Each
1+
US$201.523
Total:US$201.52
Min: 1 / Mult: 1
DUA55 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4713135

RoHS

Each
1+
US$181.811
Total:US$181.81
Min: 1 / Mult: 1
PPA01 Series
2 x DPDT
3A
Socket
-
Plug In
250VAC
415VAC
-
3 Phase
10VA
323VAC
477V
-
4825129
Each
1+
US$119.260
Total:US$119.26
Min: 1 / Mult: 1
LPRC/2/WS Series
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase (3 Wire)
2.5VA
380VAC
415VAC
-
4713133

RoHS

Each
1+
US$376.915
Total:US$376.92
Min: 1 / Mult: 1
DPC02 Series
2 x SPDT
5A
DIN Rail
-
Screw
24VDC
690VAC
-
3 Phase
7VA
177VAC
793VAC
-
4825122
Each
1+
US$97.284
Total:US$97.28
Min: 1 / Mult: 1
LXPRC-4W Series
SPDT
8A
DIN Rail
-
Screw
250VAC
230VAC
-
1 Phase
6VA
-
230VAC
-
4826665

RoHS

Each
1+
US$662.389
Total:US$662.39
Min: 1 / Mult: 1
Harmony Series
DPDT
5A
DIN Rail
-
Screw
250VAC
690VAC
-
3 Phase
22VA
480VAC
690VAC
-
4312768

RoHS

Each
1+
US$335.898
Total:US$335.90
Min: 1 / Mult: 1
DPC01 Series
2 x SPDT
5A
DIN Rail
-
Screw
24VDC
690VAC
-
3 Phase
-
177VAC
793VAC
-
2056339

RoHS

Each
1+
US$67.188
Total:US$67.19
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183VAC
528VAC
-
2056340

RoHS

Each
1+
US$94.832
Total:US$94.83
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183VAC
528VAC
-
3487981

RoHS

Each
1+
US$280.650
Total:US$280.65
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484528

RoHS

Each
1+
US$139.440
Total:US$139.44
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484532

RoHS

Each
1+
US$198.950
Total:US$198.95
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
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