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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
4163405

RoHS

Each
1+
zł240.580
5+
zł230.960
10+
zł226.400
20+
zł222.060
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
240VAC
-
1 Phase, 3 Phase
5VA
-
240VAC
-
4163396

RoHS

Each
1+
zł331.020
5+
zł317.720
10+
zł311.520
20+
zł305.530
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
4163406

RoHS

Each
1+
zł240.580
5+
zł230.960
10+
zł226.400
20+
zł222.060
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
4163397

RoHS

Each
1+
zł354.860
5+
zł340.640
10+
zł333.970
20+
zł327.560
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
240VAC
300V
-
3 Phase
5VA
85V
300V
-
4163408

RoHS

Each
1+
zł272.700
5+
zł261.810
10+
zł256.660
20+
zł251.720
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
4163407

RoHS

Each
1+
zł259.780
5+
zł249.360
10+
zł244.510
20+
zł239.780
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
2056305

RoHS

Each
1+
zł839.780
Min: 1 / Mult: 1
Harmony RM35 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
194VAC
528VAC
-
2056304

RoHS

Each
1+
zł380.220
5+
zł372.630
10+
zł365.030
Min: 1 / Mult: 1
Harmony RM17 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
440VAC
-
3 Phase
22VA
183V
484V
-
9515399

RoHS

Each
1+
zł617.340
Min: 1 / Mult: 1
-
DPDT
-
DIN Rail
-
Screw
230VAC
500VAC
-
3 Phase
-
-
-
-
3111268

RoHS

Each
1+
zł339.290
5+
zł332.490
10+
zł325.700
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
15VA
183V
528VAC
-
2780443

RoHS

Each
1+
zł814.460
Min: 1 / Mult: 1
Harmony RM35UB3 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
277VAC
-
3 Phase
3.9VA
114VAC
329VAC
EN, IEC
2835320

RoHS

Each
1+
zł654.100
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
15VA
380V
480V
CE, CSA, EN, IEC, UL
9514430

RoHS

Each
1+
zł3,148.750
Min: 1 / Mult: 1
BD 9080 Series
DPDT
-
DIN Rail
-
Screw
230VAC
400VAC
-
3 Phase
2.4VA
-
-
-
3111267

RoHS

Each
1+
zł616.120
5+
zł603.800
10+
zł591.480
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
576VAC
-
3 Phase
15VA
380V
480V
-
2780442

RoHS

Each
1+
zł622.280
Min: 1 / Mult: 1
Harmony RM22UB Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240VAC
-
1 Phase
2W
80V
300V
EN, IEC
3214139

RoHS

Each
1+
zł1,033.900
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
500VAC
-
3 Phase
18VA
300VAC
500VAC
-
2780440

RoHS

Each
1+
zł658.530
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240VAC
-
1 Phase
1.5W
15V
500VAC
EN, IEC
4163404

RoHS

Each
1+
zł240.580
5+
zł230.960
10+
zł226.400
20+
zł222.060
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
240VAC
-
3 Phase
5VA
-
240VAC
-
3050817

RoHS

Each
1+
zł371.740
5+
zł360.390
10+
zł348.740
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail, Panel
-
Screw
400VAC
480VAC
-
3 Phase
800mW
170VAC
520VAC
-
3111269

RoHS

Each
1+
zł626.670
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240VAC
-
3 Phase
10VA
200VAC
240VAC
-
3111270

RoHS

Each
1+
zł489.520
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
15VA
380V
480V
-
3214134

RoHS

Each
1+
zł1,046.560
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
500VAC
-
3 Phase
3VA
300VAC
500VAC
-
3214136

RoHS

Each
1+
zł1,092.980
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
280VAC
-
3 Phase
3VA
180VAC
280VAC
-
2780439

RoHS

Each
1+
zł658.530
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240VAC
-
1 Phase
1.5W
1V
100V
EN, IEC
3223356

RoHS

Each
1+
zł1,080.320
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
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