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Phase Monitoring Relays:

31 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
1895998

RoHS

Each
1+
kr 781.160
5+
kr 765.540
10+
kr 749.920
Min: 1 / Mult: 1
CM-PFE
SPDT
4A
DIN Rail
Screw
250V
440VAC
3 Phase
15VA
208VAC
440VAC
UL
1896002

RoHS

Each
1+
kr 652.140
5+
kr 639.070
10+
kr 626.070
Min: 1 / Mult: 1
CM-PBE
SPST-NO
-
DIN Rail
Screw
-
440VAC
3 Phase
-
220VAC
440VAC
UL
2102326

RoHS

Each
1+
kr 933.630
Min: 1 / Mult: 1
CM-PFS.S
SPDT
-
DIN Rail
Screw
24V
500V
3 Phase
-
200V
500V
UL
2612120

RoHS

Each
1+
kr 511.310
Min: 1 / Mult: 1
K8DS-PH
SPDT
5A
DIN Rail
Screw
1.25kV
250VAC
3 Phase
150W
-
-
UL
1895997

RoHS

Each
1+
kr 467.250
5+
kr 457.920
10+
kr 448.580
Min: 1 / Mult: 1
-
SPST-NO
4A
DIN Rail
Screw
250V
130VAC
1 Phase
-
110VAC
130VAC
UL
1895999

RoHS

Each
1+
kr 710.490
5+
kr 696.280
10+
kr 682.070
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
300VAC
460VAC
3 Phase
-
185VAC
460VAC
UL
2612117

RoHS

Each
1+
kr 1,167.000
Min: 1 / Mult: 1
K8AK-PM
SPDT
5A
DIN Rail
Screw
1.25kV
480VAC
3 Phase
4.4VA
220VAC
480VAC
UL
2102323

RoHS

Each
1+
kr 2,548.000
Min: 1 / Mult: 1
CM-MPN
DPDT
5A
DIN Rail
Screw
300VAC
580VAC
3 Phase
41VA
350VAC
580VAC
UL
2102318

RoHS

Each
1+
kr 1,890.000
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Spring Clamp
300VAC
500V
3 Phase
18VA
300VAC
500V
UL
2578931

RoHS

Each
1+
kr 974.100
Min: 1 / Mult: 1
K8DT-PM
SPDT
-
DIN Rail
Screw
-
480VAC
3 Phase
2.7VA
-
-
UL
2578929

RoHS

Each
1+
kr 550.260
5+
kr 539.250
10+
kr 528.250
Min: 1 / Mult: 1
K8DT-PH
SPDT
-
DIN Rail
Screw
-
480VAC
3 Phase
2.6VA
200V
480VAC
UL
2578932

RoHS

Each
1+
kr 983.030
Min: 1 / Mult: 1
K8DT-PM
SPST-NO
-
DIN Rail
Screw
-
480VAC
3 Phase
2.7VA
-
-
UL
2612116

RoHS

Each
1+
kr 583.330
Min: 1 / Mult: 1
K8AK
DPDT
5A
DIN Rail
Screw
-
480VAC
3 Phase
4.1VA
-
-
UL
2578934

RoHS

Each
1+
kr 1,206.850
Min: 1 / Mult: 1
K8DT-PZ
SPST-NO
-
DIN Rail
Screw
-
480VAC
3 Phase
2.7VA
-
-
UL
2578933

RoHS

Each
1+
kr 1,218.740
Min: 1 / Mult: 1
K8DT-PZ
SPDT
-
DIN Rail
Screw
-
480VAC
3 Phase
2.7VA
-
-
UL
2578930

RoHS

Each
1+
kr 550.260
5+
kr 539.250
10+
kr 528.250
Min: 1 / Mult: 1
K8DT-PH
SPST-NO
-
DIN Rail
Screw
-
480VAC
3 Phase
2.6VA
-
-
UL
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
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
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
500V
3 Phase
18VA
300VAC
500V
UL
2102319

RoHS

Each
1+
kr 1,473.950
5+
kr 1,405.300
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
300VAC
500V
3 Phase
4VA
300VAC
500V
UL
1896000

RoHS

Each
1+
kr 662.550
5+
kr 612.350
10+
kr 571.200
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
300VAC
460VAC
3 Phase
-
320VAC
460VAC
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
500V
3 Phase
18VA
300VAC
500V
UL
2102325

RoHS

Each
1+
kr 1,675.000
5+
kr 1,597.000
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Spring Clamp
300VAC
820VAC
3 Phase
59VA
530VAC
820VAC
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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