Element14 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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Relay Mounting
Relay Terminals
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ComparePrice ForQuantity
2056305

RoHS

Each
1+
Rs.26,002.930
Total:Rs.26,002.93
Min: 1 / Mult: 1
Harmony RM35 Series
DPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
22VA
194VAC
528VAC
2780443

RoHS

Each
1+
Rs.27,663.900
Total:Rs.27,663.90
Min: 1 / Mult: 1
Harmony RM35UB3 Series
DPDT
5A
DIN Rail
Screw
-
250V
277VAC
-
3 Phase
3.9VA
114VAC
329VAC
2507225

RoHS

Each
1+
Rs.8,483.890
5+
Rs.8,314.220
10+
Rs.8,144.540
Total:Rs.8,483.89
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
Screw
-
-
480VAC
-
3 Phase
-
-
-
2507215

RoHS

Each
1+
Rs.16,684.770
Total:Rs.16,684.77
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
Screw
-
-
480VAC
-
3 Phase
-
-
-
2504231

RoHS

Each
1+
Rs.8,711.840
5+
Rs.8,482.580
10+
Rs.8,312.930
Total:Rs.8,711.84
Min: 1 / Mult: 1
K8AK Series
DPDT-NC
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
-
200VAC
480VAC
2102318

RoHS

Each
1+
Rs.32,376.620
Total:Rs.32,376.62
Min: 1 / Mult: 1
CM Series
DPDT
5A
DIN Rail
Spring Clamp
-
300VAC
500VAC
-
3 Phase
18VA
300VAC
500VAC
4163404

RoHS

Each
1+
Rs.6,464.000
5+
Rs.6,331.860
10+
Rs.6,187.600
Total:Rs.6,464.00
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
5VA
-
240VAC
4163406

RoHS

Each
1+
Rs.6,464.000
5+
Rs.6,331.860
10+
Rs.6,187.600
Total:Rs.6,464.00
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
10VA
-
415VAC
4163403

RoHS

Each
1+
Rs.5,116.860
5+
Rs.5,011.390
10+
Rs.4,897.440
Total:Rs.5,116.86
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
15VA
-
415VAC
4163405

RoHS

Each
1+
Rs.6,464.000
5+
Rs.6,331.860
10+
Rs.6,187.600
Total:Rs.6,464.00
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
240VAC
-
1 Phase, 3 Phase
5VA
-
240VAC
4163396

RoHS

Each
1+
Rs.8,894.070
5+
Rs.8,709.800
10+
Rs.8,512.200
Total:Rs.8,894.07
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
4163407

RoHS

Each
1+
Rs.6,938.100
5+
Rs.6,795.050
10+
Rs.6,641.090
Total:Rs.6,938.10
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
10VA
-
415VAC
4163395

RoHS

Each
1+
Rs.7,823.970
5+
Rs.7,661.530
10+
Rs.7,488.170
Total:Rs.7,823.97
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
4163399

RoHS

Each
1+
Rs.5,073.330
5+
Rs.4,969.070
10+
Rs.4,855.120
Total:Rs.5,073.33
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
3.5VA
208VAC
480VAC
4163398

RoHS

Each
1+
Rs.7,482.080
5+
Rs.7,328.110
10+
Rs.7,163.240
Total:Rs.7,482.08
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
16VA
208VAC
480VAC
4163402

RoHS

Each
1+
Rs.4,835.970
5+
Rs.4,736.560
10+
Rs.4,629.880
Total:Rs.4,835.97
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
15VA
-
415VAC
4163397

RoHS

Each
1+
Rs.13,322.760
Total:Rs.13,322.76
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
240VAC
300V
-
3 Phase
5VA
85V
300V
4163408

RoHS

Each
1+
Rs.7,327.250
5+
Rs.7,176.920
10+
Rs.7,013.260
Total:Rs.7,327.25
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
10VA
-
415VAC
4163401

RoHS

Each
1+
Rs.5,689.400
5+
Rs.5,571.800
10+
Rs.5,445.730
Total:Rs.5,689.40
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
3VA
208VAC
480VAC
4826665

RoHS

Each
1+
Rs.27,691.970
Total:Rs.27,691.97
Min: 1 / Mult: 1
Harmony Series
DPDT
5A
DIN Rail
Screw
-
250V
690VAC
-
3 Phase
22VA
480VAC
690VAC
4835985

RoHS

Each
1+
Rs.13,256.350
5+
Rs.12,618.920
10+
Rs.12,237.030
Total:Rs.13,256.35
Min: 1 / Mult: 1
DPA52 Series
SPDT
5A
DIN Rail
-
-
250V
480VAC
-
3 Phase
2VA
208VAC
480VAC
4825129
Each
1+
Rs.16,364.840
5+
Rs.16,037.540
10+
Rs.15,710.240
Total:Rs.16,364.84
Min: 1 / Mult: 1
LPRC/2/WS Series
DPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase (3 Wire)
2.5VA
380VAC
415VAC
4377819

RoHS

Each
1+
Rs.13,198.890
5+
Rs.11,549.030
10+
Rs.9,763.090
Total:Rs.13,198.89
Min: 1 / Mult: 1
DPA51 Series
SPDT
5A
DIN Rail
Screw
-
24VDC
480VAC
-
3 Phase
13VA
177VAC
552VAC
4259621
Each
1+
Rs.12,427.000
Total:Rs.12,427.00
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
230VAC
-
3 Phase
8VA
170VAC
290VAC
2780436

RoHS

Each
1+
Rs.17,032.560
5+
Rs.15,648.610
10+
Rs.14,264.660
Total:Rs.17,032.56
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
Screw
-
250V
48V
-
1 Phase
3.9VA
20V
80V
1-25 of 37 items
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