Phase Monitoring Relays:

102 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
4377819

RoHS

Each
1+
Rs.9,165.870
5+
Rs.8,969.290
10+
Rs.8,950.440
Min: 1 / Mult: 1
DPA51 Series
SPDT
5A
DIN Rail
Screw
-
24VDC
480VAC
-
3 Phase
13VA
177VAC
552VAC
4163401

RoHS

Each
1+
Rs.5,905.030
5+
Rs.5,135.530
10+
Rs.5,040.080
20+
Rs.4,946.990
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
3VA
208VAC
480VAC
4236649

RoHS

Each
1+
Rs.10,901.660
5+
Rs.10,683.640
10+
Rs.10,469.970
Min: 1 / Mult: 1
MWS Series
SPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
183V
528V
4300430

RoHS

Each
1+
Rs.18,554.100
Min: 1 / Mult: 1
PPB01 Series
SPDT
8A
Socket
Plug In
-
250VAC
-
-
3 Phase
2.5VA
380VAC
480VAC
4163405

RoHS

Each
1+
Rs.6,708.650
5+
Rs.5,834.280
10+
Rs.5,724.680
20+
Rs.5,619.810
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
240VAC
-
1 Phase, 3 Phase
5VA
-
240VAC
4163396

RoHS

Each
1+
Rs.9,231.020
5+
Rs.8,026.700
10+
Rs.7,877.040
20+
Rs.7,733.280
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
4300429

RoHS

Each
1+
Rs.9,797.470
5+
Rs.9,601.530
10+
Rs.9,405.580
Min: 1 / Mult: 1
DPB51 Series
SPDT
5A
DIN Rail, Panel
Screw
-
250VAC
-
-
3 Phase
13VA
208VAC
480VAC
4163404

RoHS

Each
1+
Rs.6,708.650
5+
Rs.5,834.280
10+
Rs.5,724.680
20+
Rs.5,619.810
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
5VA
-
240VAC
4163406

RoHS

Each
1+
Rs.6,708.650
5+
Rs.5,834.280
10+
Rs.5,724.680
20+
Rs.5,619.810
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
4163397

RoHS

Each
1+
Rs.9,895.800
5+
Rs.8,605.450
10+
Rs.8,444.010
20+
Rs.8,290.820
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
240VAC
300V
-
3 Phase
5VA
85V
300V
4163408

RoHS

Each
1+
Rs.7,605.500
5+
Rs.6,613.290
10+
Rs.6,489.560
20+
Rs.6,370.540
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
4163399

RoHS

Each
1+
Rs.5,264.950
5+
Rs.4,579.120
10+
Rs.4,493.100
20+
Rs.4,410.610
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
3.5VA
208VAC
480VAC
4259621
Each
1+
Rs.11,848.840
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250VAC
230VAC
-
3 Phase
8VA
170VAC
290VAC
4259625
Each
1+
Rs.15,948.730
Min: 1 / Mult: 1
-
SPDT
10A
Socket
Plug In
-
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
2811545

RoHS

Each
1+
Rs.4,709.930
5+
Rs.4,585.980
10+
Rs.4,494.270
20+
Rs.4,402.550
Min: 1 / Mult: 1
SM 301 Series
SPDT
5A
DIN Rail
Screw
250V
250VAC
415VAC
28V
3 Phase
15VA
-
415VAC
2780436

RoHS

Each
1+
Rs.16,995.250
5+
Rs.16,655.350
10+
Rs.16,315.440
Min: 1 / Mult: 1
Zelio RM17UBE
SPDT
5A
DIN Rail
Screw
-
250VAC
48V
-
1 Phase
3.9VA
20V
80V
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
-
250VAC
415VAC
-
3 Phase
11VA
380VAC
415VAC
2295791

RoHS

Each
1+
Rs.8,156.940
5+
Rs.7,993.790
10+
Rs.7,833.920
Min: 1 / Mult: 1
70 Series
SPDT
10A
DIN Rail, Panel
Screw
-
250VAC
240VAC
-
1 Phase
2.6VA
220VAC
240VAC
3050817

RoHS

Each
1+
Rs.6,643.430
5+
Rs.6,510.570
10+
Rs.6,377.700
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail, Panel
Screw
-
400VAC
480VAC
-
3 Phase
800mW
170VAC
520VAC
2102326

RoHS

Each
1+
Rs.12,083.610
5+
Rs.11,480.030
10+
Rs.10,876.450
Min: 1 / Mult: 1
CM-PFS.S
SPDT
-
DIN Rail
Screw
-
24VDC
500VAC
-
3 Phase
-
200VAC
500VAC
2780435

RoHS

Each
1+
Rs.19,204.480
Min: 1 / Mult: 1
Zelio RM17UB3
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
183V
528V
3214134

RoHS

Each
1+
Rs.22,149.860
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
-
250VAC
500VAC
-
3 Phase
3VA
300VAC
500VAC
1895997

RoHS

Each
1+
Rs.6,954.680
5+
Rs.6,647.850
10+
Rs.6,457.910
Min: 1 / Mult: 1
-
SPST-NO
4A
DIN Rail
Screw
-
250VAC
130VAC
-
1 Phase
-
110VAC
130VAC
3223348

RoHS

Each
1+
Rs.22,876.560
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
-
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
2813563
Each
1+
Rs.12,530.390
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
Screw
-
240VAC
480VAC
-
3 Phase
6W
190VAC
480VAC
26-50 of 102 items
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