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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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2504231

RoHS

Each
1+
zł363.980
5+
zł356.720
10+
zł349.420
Total:zł363.98
Min: 1 / Mult: 1
K8AK Series
DPDT-NC
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
-
200VAC
480VAC
CSA, UL
2780440

RoHS

Each
1+
zł658.530
Total:zł658.53
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+
zł616.120
5+
zł603.800
10+
zł591.480
Total:zł616.12
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
576VAC
-
3 Phase
15VA
380VAC
480VAC
-
3111269

RoHS

Each
1+
zł626.670
Total:zł626.67
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
3 Phase
10VA
200VAC
240VAC
-
2780442

RoHS

Each
1+
zł622.280
Total:zł622.28
Min: 1 / Mult: 1
Harmony RM22UB Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
1 Phase
2W
80V
300V
EN, IEC
4259624
Each
1+
zł917.130
Total:zł917.13
Min: 1 / Mult: 1
SLU Series
SPDT
10A
Socket
-
Plug In
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
-
3214139

RoHS

Each
1+
zł1,033.900
Total:zł1,033.90
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
500VAC
-
3 Phase
18VA
300VAC
500V
-
3922060

RoHS

Each
1+
zł641.480
Total:zł641.48
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT-CO
8A
DIN Rail
-
Screw
250VAC
576VAC
-
3 Phase
4VA
208VAC
480VAC
-
4236649

RoHS

Each
1+
zł471.160
5+
zł461.750
10+
zł452.300
Total:zł471.16
Min: 1 / Mult: 1
MWS Series
SPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183V
528V
-
4163404

RoHS

Each
1+
zł268.770
5+
zł263.070
10+
zł257.340
Total:zł268.77
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
240V
-
3 Phase
5VA
-
240VAC
-
4377819

RoHS

Each
1+
zł620.720
Total:zł620.72
Min: 1 / Mult: 1
DPA51 Series
SPDT
5A
DIN Rail
-
Screw
24VDC
480VAC
-
3 Phase
13VA
177VAC
552VAC
-
4300430

RoHS

Each
1+
zł795.770
Total:zł795.77
Min: 1 / Mult: 1
PPB01 Series
SPDT
8A
Socket
-
Plug In
250VAC
-
-
3 Phase
2.5VA
380VAC
480VAC
-
4259621
Each
1+
zł626.420
Total:zł626.42
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
230VAC
-
3 Phase
8VA
170VAC
290VAC
-
4259625
Each
1+
zł843.110
Total:zł843.11
Min: 1 / Mult: 1
SLU Series
SPDT
10A
Socket
-
Plug In
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
-
4622143
CROUZET / PARTNER STOCK
Each
2+
zł285.820
6+
zł270.250
Total:zł571.64
Min: 2 / Mult: 2
WRS Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4711183

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
zł1,011.910
3+
zł962.160
Total:zł1,011.91
Min: 1 / Mult: 1
DWA01 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4660268

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
zł1,266.960
10+
zł989.430
100+
zł886.590
250+
zł830.070
500+
zł782.450
More Pricing...
Total:zł1,266.96
Min: 1 / Mult: 1
DPA03 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4657955

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
zł3,747.850
10+
zł2,926.770
100+
zł2,622.650
250+
zł2,455.410
500+
zł2,314.610
More Pricing...
Total:zł3,747.85
Min: 1 / Mult: 1
DPC02 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4622139

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
zł805.260
3+
zł761.330
Total:zł805.26
Min: 1 / Mult: 1
DPB02 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4773872

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
zł2,710.600
10+
zł2,402.460
25+
zł2,227.580
100+
zł2,091.570
250+
zł2,012.230
More Pricing...
Total:zł2,710.60
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4622142

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
zł1,311.370
3+
zł1,246.840
Total:zł1,311.37
Min: 1 / Mult: 1
DPC71 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4773870

RoHS

CROUZET / PARTNER STOCK
Each
1+
zł512.940
3+
zł484.960
Total:zł512.94
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4622140

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
zł762.390
3+
zł720.780
Total:zł762.39
Min: 1 / Mult: 1
DPB51 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4773868

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
zł1,004.280
Total:zł1,004.28
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4773867

RoHS

CARLO GAVAZZI / PARTNER STOCK
Each
1+
zł1,445.420
Total:zł1,445.42
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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