Phase Monitoring Relays:

100 Products Found

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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ComparePrice ForQuantity
2507225

RoHS

Each
1+
Rs.6,794.640
5+
Rs.6,658.750
10+
Rs.6,522.860
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
Screw
-
-
480VAC
-
3 Phase
-
-
-
2056305

RoHS

Each
1+
Rs.25,002.810
Min: 1 / Mult: 1
Harmony RM35 Series
DPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
22VA
194VAC
528VAC
2056304

RoHS

Each
1+
Rs.11,713.380
5+
Rs.11,373.590
10+
Rs.11,045.820
Min: 1 / Mult: 1
Harmony RM17 Series
DPDT
5A
DIN Rail
Screw
-
250V
440VAC
-
3 Phase
22VA
183V
484V
1344233

RoHS

Each
1+
Rs.6,337.630
5+
Rs.6,210.850
10+
Rs.6,086.640
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
1W
208VAC
480VAC
2835320

RoHS

Each
1+
Rs.14,198.120
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
15VA
380V
480VAC
2780442

RoHS

Each
1+
Rs.13,658.210
Min: 1 / Mult: 1
Harmony RM22UB Series
DPDT
8A
DIN Rail
Screw
-
250V
240VAC
-
1 Phase
2W
80V
300V
3111268

RoHS

Each
1+
Rs.7,165.510
5+
Rs.7,022.200
10+
Rs.6,878.890
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
15VA
183V
528VAC
2295793

RoHS

Each
1+
Rs.9,369.150
5+
Rs.9,181.770
10+
Rs.8,994.390
Min: 1 / Mult: 1
70 Series
SPDT
10A
DIN Rail, Panel
Screw
-
250V
415VAC
-
3 Phase
11VA
380V
415VAC
1895998

RoHS

Each
1+
Rs.10,958.850
5+
Rs.10,739.680
10+
Rs.10,520.500
Min: 1 / Mult: 1
CM-PFE Series
SPDT
4A
DIN Rail
Screw
-
250V
440VAC
-
3 Phase
15VA
208VAC
440VAC
4163407

RoHS

Each
1+
Rs.6,468.840
5+
Rs.6,221.850
10+
Rs.6,104.790
20+
Rs.5,993.580
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
10VA
-
415VAC
4163395

RoHS

Each
1+
Rs.7,292.640
5+
Rs.7,015.210
10+
Rs.6,885.280
20+
Rs.6,758.850
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
4163401

RoHS

Each
1+
Rs.5,302.890
5+
Rs.5,101.550
10+
Rs.5,006.730
20+
Rs.4,914.250
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
3VA
208VAC
480VAC
4163403

RoHS

Each
1+
Rs.4,769.940
5+
Rs.4,588.500
10+
Rs.4,503.050
20+
Rs.4,419.930
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
15VA
-
415VAC
4163405

RoHS

Each
1+
Rs.6,025.100
5+
Rs.5,795.670
10+
Rs.5,686.800
20+
Rs.5,582.620
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
240VAC
-
1 Phase, 3 Phase
5VA
-
240VAC
4163396

RoHS

Each
1+
Rs.8,290.800
5+
Rs.7,973.570
10+
Rs.7,824.900
20+
Rs.7,682.090
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
4163406

RoHS

Each
1+
Rs.6,025.100
5+
Rs.5,795.670
10+
Rs.5,686.800
20+
Rs.5,582.620
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
10VA
-
415VAC
4163398

RoHS

Each
1+
Rs.6,975.370
5+
Rs.6,709.640
10+
Rs.6,584.390
20+
Rs.6,464.990
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
16VA
208VAC
480VAC
4163402

RoHS

Each
1+
Rs.4,509.260
5+
Rs.4,337.180
10+
Rs.4,256.410
20+
Rs.4,179.150
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
15VA
-
415VAC
4163397

RoHS

Each
1+
Rs.8,887.960
5+
Rs.8,548.490
10+
Rs.8,388.120
20+
Rs.8,235.940
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
240VAC
300V
-
3 Phase
5VA
85V
300V
4163408

RoHS

Each
1+
Rs.6,830.560
5+
Rs.6,569.510
10+
Rs.6,446.600
20+
Rs.6,328.370
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
10VA
-
415VAC
4163399

RoHS

Each
1+
Rs.4,729.080
5+
Rs.4,548.810
10+
Rs.4,463.350
20+
Rs.4,381.410
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
3.5VA
208VAC
480VAC
2780443

RoHS

Each
1+
Rs.26,514.860
Min: 1 / Mult: 1
Harmony RM35UB3 Series
DPDT
5A
DIN Rail
Screw
-
250V
277VAC
-
3 Phase
3.9VA
114VAC
329VAC
3922060

RoHS

Each
1+
Rs.13,813.030
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT-CO
8A
DIN Rail
Screw
-
250V
576VAC
-
3 Phase
4VA
208VAC
480VAC
2507215

RoHS

Each
1+
Rs.16,433.880
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
Min: 1 / Mult: 1
K8AK Series
DPDT-NC
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
-
200VAC
480VAC
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