ex VAT

Phase Monitoring Relays:

170 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
2504231

RoHS

Each
1+
£66.060
5+
£64.740
10+
£63.420
Min: 1 / Mult: 1
K8AK Series
DPDT-NC
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
-
200VAC
480VAC
CSA, UL
3111267

RoHS

Each
1+
£105.640
5+
£103.530
10+
£101.410
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
576VAC
-
3 Phase
15VA
380VAC
480VAC
-
2780442

RoHS

Each
1+
£152.850
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+
£215.430
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
500VAC
-
3 Phase
18VA
300VAC
500VAC
-
4259624
Each
1+
£192.650
Min: 1 / Mult: 1
SLU Series
SPDT
10A
Socket
-
Plug In
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
-
3922060

RoHS

Each
1+
£167.920
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT-CO
8A
DIN Rail
-
Screw
250VAC
576VAC
-
3 Phase
4VA
208VAC
480VAC
-
2455513

RoHS

Each
1+
£89.960
5+
£88.160
10+
£86.360
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
-
-
-
2780440

RoHS

Each
1+
£163.330
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240VAC
-
1 Phase
1.5W
15V
500VAC
EN, IEC
4236649

RoHS

Each
1+
£122.730
5+
£120.280
10+
£117.820
Min: 1 / Mult: 1
MWS Series
SPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183V
528V
-
4163404

RoHS

Each
1+
£49.140
5+
£47.180
10+
£46.250
20+
£45.360
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
240VAC
-
3 Phase
5VA
-
240VAC
-
4300430

RoHS

Each
1+
£163.980
Min: 1 / Mult: 1
PPB01 Series
SPDT
8A
Socket
-
Plug In
250VAC
-
-
3 Phase
2.5VA
380VAC
480VAC
-
4300429

RoHS

Each
1+
£124.460
5+
£105.520
10+
£103.410
Min: 1 / Mult: 1
DPB51 Series
SPDT
5A
DIN Rail, Panel
-
Screw
250VAC
-
-
3 Phase
13VA
208VAC
480VAC
-
4377819

RoHS

Each
1+
£127.900
Min: 1 / Mult: 1
DPA51 Series
SPDT
5A
DIN Rail
-
Screw
24VDC
480VAC
-
3 Phase
13VA
177VAC
552VAC
-
4259621
Each
1+
£131.590
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
230VAC
-
3 Phase
8VA
170VAC
290VAC
-
4259625
Each
1+
£173.120
Min: 1 / Mult: 1
SLU Series
SPDT
10A
Socket
-
Plug In
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
-
4622143
CROUZET / PARTNER STOCK
Each
2+
£57.900
6+
£54.730
Min: 2 / Mult: 2
WRS Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4773870

RoHS

CROUZET / PARTNER STOCK
Each
1+
£106.630
3+
£100.820
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4773869
CROUZET / PARTNER STOCK
Each
1+
£106.630
3+
£100.820
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2295791

RoHS

Each
1+
£103.700
5+
£99.480
10+
£97.490
Min: 1 / Mult: 1
70 Series
SPDT
10A
DIN Rail, Panel
-
Screw
250VAC
240VAC
-
1 Phase
2.6VA
220VAC
240VAC
-
3050817

RoHS

Each
1+
£87.290
5+
£84.620
10+
£80.970
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail, Panel
-
Screw
400VAC
480VAC
-
3 Phase
800mW
170VAC
520VAC
-
2811545

RoHS

Each
1+
£33.570
5+
£33.550
10+
£33.520
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
250V
Screw
250VAC
415VAC
28V
3 Phase
15VA
-
415VAC
CE
1896002

RoHS

Each
1+
£65.900
5+
£62.610
10+
£59.310
Min: 1 / Mult: 1
CM-PBE Series
SPST-NO
-
DIN Rail
-
Screw
-
440VAC
-
3 Phase
-
220VAC
440VAC
UL
1390500

RoHS

Each
1+
£114.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
SPST-NC
-
DIN Rail
-
Screw
-
500VAC
-
3 Phase
2W
320VAC
500VAC
-
2102326

RoHS

Each
1+
£89.980
Min: 1 / Mult: 1
CM Series
SPDT
-
DIN Rail
-
Screw
24VDC
500VAC
-
3 Phase
-
200VAC
500VAC
UL
2612120

RoHS

Each
1+
£60.350
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
1.25kV
250VAC
-
3 Phase
150W
-
-
UL
26-50 of 170 items
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