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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
4773869
CROUZET / PARTNER STOCK
Each
1+
zł512.940
3+
zł484.960
Total:zł512.94
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4825129
Each
1+
zł430.320
Total:zł430.32
Min: 1 / Mult: 1
LPRC/2/WS Series
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase (3 Wire)
2.5VA
380VAC
415VAC
-
2295791

RoHS

Each
1+
zł424.190
5+
zł415.710
10+
zł407.230
Total:zł424.19
Min: 1 / Mult: 1
70 Series
SPDT
10A
DIN Rail, Panel
-
Screw
250VAC
240VAC
-
1 Phase
2.6VA
220VAC
240VAC
-
2811545

RoHS

Each
1+
zł167.070
5+
zł165.640
10+
zł162.260
Total:zł167.07
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
250V
Screw
250VAC
415VAC
28V
3 Phase
15VA
-
415VAC
CE
3050817

RoHS

Each
1+
zł371.740
5+
zł360.390
10+
zł348.740
Total:zł371.74
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail, Panel
-
Screw
400VAC
480VAC
-
3 Phase
800mW
170VAC
520VAC
-
2835320

RoHS

Each
1+
zł654.100
Total:zł654.10
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
15VA
380VAC
480V
CE, CSA, EN, IEC, UL
1896002

RoHS

Each
1+
zł368.410
5+
zł361.020
10+
zł353.680
Total:zł368.41
Min: 1 / Mult: 1
CM-PBE Series
SPST-NO
-
DIN Rail
-
Screw
-
440VAC
-
3 Phase
-
220VAC
440VAC
UL
1390500

RoHS

Each
1+
zł654.100
Total:zł654.10
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
SPST-NC
-
DIN Rail
-
Screw
-
500VAC
-
3 Phase
2W
320VAC
500VAC
-
2102326

RoHS

Each
1+
zł527.500
Total:zł527.50
Min: 1 / Mult: 1
CM Series
SPDT
-
DIN Rail
-
Screw
24V
500VAC
-
3 Phase
-
200V
500VAC
UL
2612120

RoHS

Each
1+
zł308.270
Total:zł308.27
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
1.25kV
250VAC
-
3 Phase
150W
-
-
UL
3111270

RoHS

Each
1+
zł489.520
Total:zł489.52
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
15VA
380VAC
480V
-
3214134

RoHS

Each
1+
zł1,046.560
Total:zł1,046.56
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
Total:zł1,092.98
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
280VAC
-
3 Phase
3VA
180VAC
280VAC
-
1895997

RoHS

Each
1+
zł263.960
5+
zł258.690
10+
zł253.410
Total:zł263.96
Min: 1 / Mult: 1
CM-MSE Series
SPST-NO
4A
DIN Rail
-
Screw
250VAC
130VAC
-
1 Phase
-
110VAC
130VAC
UL
1895999

RoHS

Each
1+
zł403.010
5+
zł394.950
10+
zł386.890
Total:zł403.01
Min: 1 / Mult: 1
CM-PVE Series
SPDT
5A
DIN Rail
-
Screw
300VAC
460VAC
-
3 Phase
-
185VAC
460VAC
UL
2507217

RoHS

Each
1+
zł796.270
Total:zł796.27
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
2612117

RoHS

Each
1+
zł708.120
Total:zł708.12
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+
zł658.530
Total:zł658.53
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+
zł425.420
Total:zł425.42
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
-
Screw
240VAC
480VAC
-
3 Phase
6W
190VAC
480V
CE, IEC, UL
2780436

RoHS

Each
1+
zł593.710
Total:zł593.71
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
48V
-
1 Phase
3.9VA
20V
80V
EN, IEC
2780435

RoHS

Each
1+
zł576.030
Total:zł576.03
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183VAC
528VAC
EN, IEC
3223356

RoHS

Each
1+
zł1,080.320
Total:zł1,080.32
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
9515020

RoHS

Each
1+
zł428.500
5+
zł363.300
10+
zł356.040
Total:zł428.50
Min: 1 / Mult: 1
-
SPST-NC
-
DIN Rail
-
Screw
-
415VAC
-
3 Phase
-
-
-
-
2102323

RoHS

Each
1+
zł1,439.440
Total:zł1,439.44
Min: 1 / Mult: 1
CM Series
DPDT
5A
DIN Rail
-
Screw
300VAC
580VAC
-
3 Phase
41VA
350VAC
580VAC
UL
2780441

RoHS

Each
1+
zł685.670
Total:zł685.67
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
415VAC
-
1 Phase
8VA
15V
500VAC
EN, IEC
51-75 of 187 items
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