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
2507225

RoHS

Each
1+
kr729.020
5+
kr714.490
10+
kr699.860
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
4163401

RoHS

Each
1+
kr609.840
5+
kr596.890
10+
kr583.950
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
3VA
208VAC
480VAC
-
4163403

RoHS

Each
1+
kr547.070
5+
kr535.430
10+
kr523.790
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
-
4163405

RoHS

Each
1+
kr692.840
5+
kr678.150
10+
kr663.360
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
240VAC
-
1 Phase, 3 Phase
5VA
-
240VAC
-
4163396

RoHS

Each
1+
kr953.370
5+
kr933.140
10+
kr912.690
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
4163406

RoHS

Each
1+
kr692.840
5+
kr678.150
10+
kr663.360
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
4163402

RoHS

Each
1+
kr517.150
5+
kr506.170
10+
kr495.180
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
-
4163398

RoHS

Each
1+
kr800.100
5+
kr783.130
10+
kr765.940
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
16VA
208VAC
480VAC
-
4163397

RoHS

Each
1+
kr1,243.000
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
240VAC
300V
-
3 Phase
5VA
85V
300V
-
4163408

RoHS

Each
1+
kr785.520
5+
kr768.880
10+
kr752.010
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
4163399

RoHS

Each
1+
kr543.910
5+
kr532.270
10+
kr520.740
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
3.5VA
208VAC
480VAC
-
4163395

RoHS

Each
1+
kr836.540
5+
kr818.810
10+
kr800.970
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
4163407

RoHS

Each
1+
kr741.900
5+
kr726.120
10+
kr710.240
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
2056305

RoHS

Each
1+
kr2,218.000
Min: 1 / Mult: 1
Harmony RM35 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
194VAC
528VAC
-
2056304

RoHS

Each
1+
kr1,031.000
5+
kr1,010.000
10+
kr989.700
Min: 1 / Mult: 1
Harmony RM17 Series
DPDT
5A
DIN Rail
-
Screw
250VAC
440VAC
-
3 Phase
22VA
183V
484V
-
2455513

RoHS

Each
1+
kr999.730
5+
kr979.780
10+
kr959.720
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
-
-
-
2507215

RoHS

Each
1+
kr1,834.000
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
2780443

RoHS

Each
1+
kr2,160.000
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+
kr924.630
5+
kr908.060
10+
kr892.170
Min: 1 / Mult: 1
K8AK Series
DPDT-NC
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
-
200VAC
480VAC
CSA, UL
4163404

RoHS

Each
1+
kr692.840
5+
kr678.150
10+
kr663.360
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
240VAC
-
3 Phase
5VA
-
240VAC
-
4377819

RoHS

Each
1+
kr1,600.000
Min: 1 / Mult: 1
DPA51 Series
SPDT
5A
DIN Rail
-
Screw
24VDC
480VAC
-
3 Phase
13VA
177VAC
552VAC
-
4259621
Each
1+
kr1,690.000
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
250VAC
230VAC
-
3 Phase
8VA
170VAC
290VAC
-
2811545

RoHS

Each
1+
kr430.890
5+
kr422.290
10+
kr413.700
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
250V
Screw
250VAC
415VAC
28V
3 Phase
15VA
-
415VAC
CE
2612120

RoHS

Each
1+
kr817.520
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
1.25kV
250VAC
-
3 Phase
150W
-
-
UL
1895999

RoHS

Each
1+
kr1,063.000
5+
kr1,042.000
10+
kr1,021.000
Min: 1 / Mult: 1
CM-PVE Series
SPDT
5A
DIN Rail
-
Screw
300VAC
460VAC
-
3 Phase
-
185VAC
460VAC
UL
1-25 of 52 items
of 3 page(s)

Popular Suppliers

ABB
SCHNEIDER ELECTRIC
OMRON
EATON
SIEMENS
TE CONNECTIVITY
PANASONIC
CROUZET