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Phase Monitoring Relays:

162 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
1853734

RoHS

Each
1+
kr 1,245.260
Total:kr 1,245.26
Min: 1 / Mult: 1
-
SPDT-NO
-
DIN Rail
-
Screw
-
230VAC
-
1 Phase
6VA
-
-
-
2578934

RoHS

Each
1+
kr 1,968.000
Total:kr 1,968.00
Min: 1 / Mult: 1
K8DT-PZ Series
SPST-NO
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2578933

RoHS

Each
1+
kr 1,987.000
Total:kr 1,987.00
Min: 1 / Mult: 1
K8DT-PZ Series
SPDT
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2578930

RoHS

Each
1+
kr 897.470
5+
kr 879.520
10+
kr 861.570
Total:kr 897.47
Min: 1 / Mult: 1
K8DT-PH Series
SPST-NO
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.6VA
-
-
UL
2915307

RoHS

Each
1+
kr 1,033.000
5+
kr 1,030.000
10+
kr 1,027.000
Total:kr 1,033.00
Min: 1 / Mult: 1
EMD-BL Series
SPDT
5A
DIN Rail
-
Quick Connect
250V
480VAC
-
3 Phase
1.5W
187VAC
519VAC
CE, EAC, UL
3440427

RoHS

Each
1+
kr 1,985.000
Total:kr 1,985.00
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
250V
480VAC
-
3 Phase
2.8VA
-
-
-
3223353

RoHS

Each
1+
kr 3,070.000
Total:kr 3,070.00
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
3223348

RoHS

Each
1+
kr 3,034.000
Total:kr 3,034.00
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
1390498

RoHS

Each
1+
kr 2,343.000
5+
kr 2,296.140
10+
kr 2,249.280
Total:kr 2,343.00
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
DPDT
3A
DIN Rail
-
Screw
400VAC
690VAC
-
3 Phase
2W
160VAC
690VAC
-
3487977

RoHS

Each
1+
kr 3,606.500
Total:kr 3,606.50
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
2811533

RoHS

Each
1+
kr 711.120
5+
kr 689.080
10+
kr 667.040
20+
kr 653.650
Total:kr 711.12
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
250V
Screw
250V
415VAC
28V
3 Phase
10VA
-
415VAC
CE
2064124

RoHS

Each
1+
kr 351.250
2+
kr 339.100
5+
kr 306.600
Total:kr 351.25
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250V
415VAC
-
3 Phase
10VA
-
415VAC
-
3484527

RoHS

Each
1+
kr 2,037.440
Total:kr 2,037.44
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484535

RoHS

Each
1+
kr 3,372.310
Total:kr 3,372.31
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4247877

RoHS

Each
1+
kr 3,798.000
Total:kr 3,798.00
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Push In
250V
820VAC
-
3 Phase
59VA
530VAC
820VAC
-
4244638

RoHS

Each
1+
kr 912.390
5+
kr 894.140
10+
kr 875.890
Total:kr 912.39
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
-
Push In
400VAC
415VAC
-
3 Phase
1W
208VAC
480VAC
-
4825122
Each
1+
kr 968.660
Total:kr 968.66
Min: 1 / Mult: 1
LXPRC-4W Series
SPDT
8A
DIN Rail
-
Screw
250V
230VAC
-
1 Phase
6VA
-
230VAC
-
4312770

RoHS

Each
1+
kr 1,636.000
Total:kr 1,636.00
Min: 1 / Mult: 1
DPB52 Series
SPDT
5A
DIN Rail
-
-
480VAC
208VAC
-
3 Phase
2W
480VAC
208VAC
-
4825120
Each
1+
kr 564.430
Total:kr 564.43
Min: 1 / Mult: 1
LPPI Series
-
-
DIN Rail
-
Screw
-
490VAC
-
3 Phase (3 Wire)
4VA
320VAC
490VAC
-
4713109

RoHS

Each
1+
kr 3,533.000
Total:kr 3,533.00
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 2,372.000
Total:kr 2,372.00
Min: 1 / Mult: 1
DPA55 Series
SPDT
5A
DIN Rail
-
Screw
250V
480VAC
-
3 Phase
18VA
177VAC
550VAC
-
4312771

RoHS

Each
1+
kr 2,524.000
Total:kr 2,524.00
Min: 1 / Mult: 1
DWA01 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4825119
Each
1+
kr 961.920
Total:kr 961.92
Min: 1 / Mult: 1
LXPRC/S/RD Series
SPDT
8A
DIN Rail
-
Screw
250V
460VAC
-
3 Phase
8VA
380VAC
460VAC
-
4713135

RoHS

Each
1+
kr 1,855.000
Total:kr 1,855.00
Min: 1 / Mult: 1
PPA01 Series
2 x DPDT
3A
Socket
-
Plug In
250V
415VAC
-
3 Phase
10VA
323V
477V
-
4300429

RoHS

Each
1+
kr 1,700.000
5+
kr 1,441.000
10+
kr 1,413.000
Total:kr 1,700.00
Min: 1 / Mult: 1
DPB51 Series
SPDT
5A
DIN Rail, Panel
-
Screw
250V
-
-
3 Phase
13VA
208VAC
480VAC
-
101-125 of 162 items
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