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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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ComparePrice ForQuantity
2507225

RoHS

Each
1+
zł277.470
5+
zł271.940
10+
zł266.370
Total:zł277.47
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
4163401

RoHS

Each
1+
zł236.570
5+
zł231.550
10+
zł226.530
Total:zł236.57
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
3VA
208VAC
480VAC
-
4163403

RoHS

Each
1+
zł212.220
5+
zł207.710
10+
zł203.190
Total:zł212.22
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
-
4163405

RoHS

Each
1+
zł268.770
5+
zł263.070
10+
zł257.340
Total:zł268.77
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
240VAC
-
1 Phase, 3 Phase
5VA
-
240VAC
-
4163396

RoHS

Each
1+
zł369.840
5+
zł361.990
10+
zł354.060
Total:zł369.84
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
4163406

RoHS

Each
1+
zł268.770
5+
zł263.070
10+
zł257.340
Total:zł268.77
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
4163398

RoHS

Each
1+
zł310.380
5+
zł303.800
10+
zł297.130
Total:zł310.38
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
16VA
208VAC
480VAC
-
4163402

RoHS

Each
1+
zł200.620
5+
zł196.360
10+
zł192.090
Total:zł200.62
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
-
4163397

RoHS

Each
1+
zł482.220
Total:zł482.22
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
240VAC
300V
-
3 Phase
5VA
85V
300V
-
4163408

RoHS

Each
1+
zł304.730
5+
zł298.270
10+
zł291.730
Total:zł304.73
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
4163399

RoHS

Each
1+
zł211.000
5+
zł206.480
10+
zł202.010
Total:zł211.00
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
3.5VA
208VAC
480VAC
-
4163395

RoHS

Each
1+
zł324.520
5+
zł317.640
10+
zł310.720
Total:zł324.52
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
4163407

RoHS

Each
1+
zł287.800
5+
zł281.690
10+
zł275.520
Total:zł287.80
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
2295793

RoHS

Each
1+
zł521.340
5+
zł510.920
10+
zł500.490
Total:zł521.34
Min: 1 / Mult: 1
70 Series
SPDT
10A
DIN Rail, Panel
-
Screw
250VAC
415VAC
-
3 Phase
11VA
380VAC
415VAC
-
2056305

RoHS

Each
1+
zł839.780
Total:zł839.78
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
Total:zł380.22
Min: 1 / Mult: 1
Harmony RM17 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
440VAC
-
3 Phase
22VA
183V
484V
-
1344233

RoHS

Each
1+
zł294.260
5+
zł288.390
10+
zł282.490
Total:zł294.26
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
1W
208VAC
480VAC
-
1895998

RoHS

Each
1+
zł443.100
5+
zł434.240
10+
zł425.380
Total:zł443.10
Min: 1 / Mult: 1
CM-PFE Series
SPDT
4A
DIN Rail
-
Screw
250VAC
440VAC
-
3 Phase
15VA
208VAC
440VAC
UL
9515399

RoHS

Each
1+
zł617.340
Total:zł617.34
Min: 1 / Mult: 1
-
DPDT
-
DIN Rail
-
Screw
230VAC
500VAC
-
3 Phase
-
-
-
-
2507215

RoHS

Each
1+
zł708.120
Total:zł708.12
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
2455513

RoHS

Each
1+
zł382.330
5+
zł374.690
10+
zł367.060
Total:zł382.33
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
-
-
-
2780443

RoHS

Each
1+
zł814.460
Total:zł814.46
Min: 1 / Mult: 1
Harmony RM35UB3 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
277VAC
-
3 Phase
3.9VA
114VAC
329VAC
EN, IEC
3111268

RoHS

Each
1+
zł339.290
5+
zł332.490
10+
zł325.700
Total:zł339.29
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
15VA
183V
528VAC
-
9514430

RoHS

Each
1+
zł3,148.750
Total:zł3,148.75
Min: 1 / Mult: 1
BD 9080 Series
DPDT
-
DIN Rail
-
Screw
230VAC
400VAC
-
3 Phase
2.4VA
-
-
-
9515046

RoHS

Each
1+
zł435.800
5+
zł369.500
10+
zł362.120
Total:zł435.80
Min: 1 / Mult: 1
-
SPST-NC
-
DIN Rail
-
Screw
230VAC
400VAC
-
3 Phase
-
-
-
-
1-25 of 187 items
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