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Phase Monitoring Relays:

163 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
4773869
CROUZET / PARTNER STOCK
Each
1+
€ 121.550
3+
€ 114.920
Total:€ 121.55
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2295791

RoHS

Each
1+
€ 100.520
5+
€ 98.510
10+
€ 96.500
Total:€ 100.52
Min: 1 / Mult: 1
70 Series
SPDT
10A
DIN Rail, Panel
-
Screw
250VAC
240VAC
-
1 Phase
2.6VA
220VAC
240VAC
-
2811545

RoHS

Each
1+
€ 39.590
5+
€ 39.250
10+
€ 38.450
Total:€ 39.59
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
250V
Screw
250VAC
415VAC
28V
3 Phase
15VA
-
415VAC
CE
3050817

RoHS

Each
1+
€ 88.090
5+
€ 85.400
10+
€ 82.640
Total:€ 88.09
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail, Panel
-
Screw
400VAC
480VAC
-
3 Phase
800mW
170VAC
520VAC
-
2835320

RoHS

Each
1+
€ 155.000
Total:€ 155.00
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
15VA
380V
480V
CE, CSA, EN, IEC, UL
1896002

RoHS

Each
1+
€ 87.300
5+
€ 85.550
10+
€ 83.810
Total:€ 87.30
Min: 1 / Mult: 1
CM-PBE Series
SPST-NO
-
DIN Rail
-
Screw
-
440VAC
-
3 Phase
-
220VAC
440VAC
UL
1390500

RoHS

Each
1+
€ 155.000
Total:€ 155.00
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
SPST-NC
-
DIN Rail
-
Screw
-
500VAC
-
3 Phase
2W
320VAC
500VAC
-
2102326

RoHS

Each
1+
€ 125.000
Total:€ 125.00
Min: 1 / Mult: 1
CM Series
SPDT
-
DIN Rail
-
Screw
24V
500VAC
-
3 Phase
-
200V
500VAC
UL
2612120

RoHS

Each
1+
€ 73.050
Total:€ 73.05
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
1.25kV
250VAC
-
3 Phase
150W
-
-
UL
3111270

RoHS

Each
1+
€ 116.000
Total:€ 116.00
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
15VA
380V
480V
-
3214134

RoHS

Each
1+
€ 248.000
Total:€ 248.00
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
500VAC
-
3 Phase
3VA
300VAC
500VAC
-
3214136

RoHS

Each
1+
€ 259.000
Total:€ 259.00
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
280VAC
-
3 Phase
3VA
180VAC
280VAC
-
1895997

RoHS

Each
1+
€ 62.550
5+
€ 61.300
10+
€ 60.050
Total:€ 62.55
Min: 1 / Mult: 1
CM-MSE Series
SPST-NO
4A
DIN Rail
-
Screw
250VAC
130VAC
-
1 Phase
-
110VAC
130VAC
UL
1895999

RoHS

Each
1+
€ 95.500
5+
€ 93.590
10+
€ 91.680
Total:€ 95.50
Min: 1 / Mult: 1
CM-PVE Series
SPDT
5A
DIN Rail
-
Screw
300VAC
460VAC
-
3 Phase
-
185VAC
460VAC
UL
2507217

RoHS

Each
1+
€ 188.690
Total:€ 188.69
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
2612117

RoHS

Each
1+
€ 167.800
Total:€ 167.80
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
1.25kV
480VAC
-
3 Phase
4.4VA
220VAC
480V
UL
2780439

RoHS

Each
1+
€ 156.050
Total:€ 156.05
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240VAC
-
1 Phase
1.5W
1V
100V
EN, IEC
2813563
Each
1+
€ 100.810
Total:€ 100.81
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
-
Screw
240VAC
480VAC
-
3 Phase
6W
190VAC
480V
CE, IEC, UL
2780435

RoHS

Each
1+
€ 136.500
Total:€ 136.50
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183VAC
528VAC
EN, IEC
2780436

RoHS

Each
1+
€ 140.690
Total:€ 140.69
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
48V
-
1 Phase
3.9VA
20V
80V
EN, IEC
3223356

RoHS

Each
1+
€ 256.000
Total:€ 256.00
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
2102323

RoHS

Each
1+
€ 341.100
Total:€ 341.10
Min: 1 / Mult: 1
CM Series
DPDT
5A
DIN Rail
-
Screw
300VAC
580VAC
-
3 Phase
41VA
350VAC
580VAC
UL
9515020

RoHS

Each
1+
€ 101.540
5+
€ 86.090
10+
€ 84.370
Total:€ 101.54
Min: 1 / Mult: 1
-
SPST-NC
-
DIN Rail
-
Screw
-
415VAC
-
3 Phase
-
-
-
-
2780441

RoHS

Each
1+
€ 162.480
Total:€ 162.48
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
415VAC
-
1 Phase
8VA
15V
500VAC
EN, IEC
2780438

RoHS

Each
1+
€ 177.210
Total:€ 177.21
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240VAC
-
1 Phase
1.5W
50mV
5V
EN, IEC
51-75 of 163 items
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