ex VAT

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.
Show More
View
Buyer
Engineer
Manufacturer
Product Range
Contact Configuration
Contact Current
Relay Mounting
Contact Voltage VAC
Relay Terminals
Switching Voltage Max
Supply Voltage Max
Contact Voltage VDC
Phase Type
Power Consumption
Phase Monitoring Range Min
Phase Monitoring Range Max
Approvals & Standards
Packaging
Filter(s) Applied
1 Filter(s) Selected
ComparePrice ForQuantity
4163401

RoHS

Each
1+
£43.250
5+
£41.530
10+
£40.720
20+
£39.930
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
3VA
208VAC
480VAC
-
4163403

RoHS

Each
1+
£38.800
5+
£37.250
10+
£36.520
20+
£35.810
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
-
4163405

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
-
1 Phase, 3 Phase
5VA
-
240VAC
-
4163396

RoHS

Each
1+
£67.620
5+
£64.910
10+
£63.640
20+
£62.420
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
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
-
4163406

RoHS

Each
1+
£49.140
5+
£47.180
10+
£46.250
20+
£45.360
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
4163402

RoHS

Each
1+
£36.680
5+
£35.210
10+
£34.520
20+
£33.860
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
-
4163398

RoHS

Each
1+
£56.740
5+
£54.470
10+
£53.400
20+
£52.380
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
16VA
208VAC
480VAC
-
4163397

RoHS

Each
1+
£72.490
5+
£69.590
10+
£68.220
20+
£66.920
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
240VAC
300V
-
3 Phase
5VA
85V
300V
-
4163408

RoHS

Each
1+
£55.710
5+
£53.480
10+
£52.430
20+
£51.420
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
4163399

RoHS

Each
1+
£38.570
5+
£37.030
10+
£36.300
20+
£35.600
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
3.5VA
208VAC
480VAC
-
4163395

RoHS

Each
1+
£59.320
5+
£56.950
10+
£55.840
20+
£54.760
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
4163407

RoHS

Each
1+
£52.620
5+
£50.510
10+
£49.510
20+
£48.560
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
2056305

RoHS

Each
1+
£235.440
Min: 1 / Mult: 1
Harmony RM35 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
194VAC
528VAC
-
2056304

RoHS

Each
1+
£98.360
5+
£96.390
10+
£94.430
Min: 1 / Mult: 1
Harmony RM17 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
440VAC
-
3 Phase
22VA
183V
484V
-
2507225

RoHS

Each
1+
£60.350
5+
£59.140
10+
£57.940
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
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
-
-
-
2507215

RoHS

Each
1+
£137.700
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
2780443

RoHS

Each
1+
£221.910
Min: 1 / Mult: 1
Harmony RM35UB3 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
277VAC
-
3 Phase
3.9VA
114VAC
329VAC
EN, IEC
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
4300429

RoHS

Each
1+
£119.670
5+
£101.460
10+
£99.430
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
-
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
2612120

RoHS

Each
1+
£60.350
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
1.25kV
250VAC
-
3 Phase
150W
-
-
UL
1-25 of 71 items
of 3 page(s)

Popular Suppliers

ABB
SCHNEIDER ELECTRIC
OMRON
EATON
SIEMENS
TE CONNECTIVITY
PANASONIC
CROUZET
Trade Account