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Phase Monitoring Relays:

161 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
2504231

RoHS

Each
1+
kr924.630
5+
kr908.060
10+
kr892.170
Total:kr924.63
Min: 1 / Mult: 1
K8AK Series
DPDT-NC
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
-
200VAC
480VAC
CSA, UL
2780440

RoHS

Each
1+
kr1,729.000
Total:kr1,729.00
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
1 Phase
1.5W
15V
500V
EN, IEC
3111267

RoHS

Each
1+
kr1,634.000
5+
kr1,601.000
10+
kr1,569.000
Total:kr1,634.00
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
576VAC
-
3 Phase
15VA
380VAC
480VAC
-
3111269

RoHS

Each
1+
kr1,662.000
Total:kr1,662.00
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
3 Phase
10VA
200VAC
240VAC
-
2780442

RoHS

Each
1+
kr1,634.000
Total:kr1,634.00
Min: 1 / Mult: 1
Harmony RM22UB Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
1 Phase
2W
80V
300V
EN, IEC
4259624
Each
1+
kr2,475.000
Total:kr2,475.00
Min: 1 / Mult: 1
SLU Series
SPDT
10A
Socket
-
Plug In
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
-
3214139

RoHS

Each
1+
kr2,742.000
Total:kr2,742.00
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
500VAC
-
3 Phase
18VA
300VAC
500V
-
3922060

RoHS

Each
1+
kr1,684.000
Total:kr1,684.00
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT-CO
8A
DIN Rail
-
Screw
250VAC
576VAC
-
3 Phase
4VA
208VAC
480VAC
-
4236649

RoHS

Each
1+
kr1,215.000
5+
kr1,190.000
10+
kr1,166.000
Total:kr1,215.00
Min: 1 / Mult: 1
MWS Series
SPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183V
528V
-
4163404

RoHS

Each
1+
kr692.840
5+
kr678.150
10+
kr663.360
Total:kr692.84
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
240V
-
3 Phase
5VA
-
240VAC
-
4377819

RoHS

Each
1+
kr1,600.000
Total:kr1,600.00
Min: 1 / Mult: 1
DPA51 Series
SPDT
5A
DIN Rail
-
Screw
24VDC
480VAC
-
3 Phase
13VA
177VAC
552VAC
-
4300430

RoHS

Each
1+
kr2,051.000
Total:kr2,051.00
Min: 1 / Mult: 1
PPB01 Series
SPDT
8A
Socket
-
Plug In
250VAC
-
-
3 Phase
2.5VA
380VAC
480VAC
-
4259621
Each
1+
kr1,690.000
Total:kr1,690.00
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
230VAC
-
3 Phase
8VA
170VAC
290VAC
-
4259625
Each
1+
kr2,173.000
Total:kr2,173.00
Min: 1 / Mult: 1
SLU Series
SPDT
10A
Socket
-
Plug In
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
-
4622143
CROUZET / PARTNER STOCK
Each
2+
kr754.870
6+
kr713.740
Total:kr1,509.74
Min: 2 / Mult: 2
WRS Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4711183

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
kr2,684.000
3+
kr2,552.000
Total:kr2,684.00
Min: 1 / Mult: 1
DWA01 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4660268

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
kr3,448.450
10+
kr2,693.060
100+
kr2,413.150
250+
kr2,259.310
500+
kr2,129.680
More Pricing...
Total:kr3,448.45
Min: 1 / Mult: 1
DPA03 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4657955

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
kr10,200.970
10+
kr7,966.140
100+
kr7,138.380
250+
kr6,683.170
500+
kr6,299.960
More Pricing...
Total:kr10,200.97
Min: 1 / Mult: 1
DPC02 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4622139

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
kr2,127.000
3+
kr2,011.000
Total:kr2,127.00
Min: 1 / Mult: 1
DPB02 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4773872

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
kr7,377.760
10+
kr6,539.070
25+
kr6,063.080
100+
kr5,692.880
250+
kr5,476.930
More Pricing...
Total:kr7,377.76
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4622142

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
kr3,463.000
3+
kr3,293.000
Total:kr3,463.00
Min: 1 / Mult: 1
DPC71 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4773870

RoHS

CROUZET / PARTNER STOCK
Each
1+
kr1,348.000
3+
kr1,274.000
Total:kr1,348.00
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4622140

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
kr2,014.000
3+
kr1,904.000
Total:kr2,014.00
Min: 1 / Mult: 1
DPB51 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4773868

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
kr2,733.460
Total:kr2,733.46
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4773867

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
kr3,934.180
Total:kr3,934.18
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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