Phase Monitoring Relays:

97 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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4163401

RoHS

Each
1+
HK$466.710
5+
HK$403.300
10+
HK$395.430
20+
HK$387.770
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
3VA
208VAC
480VAC
4163403

RoHS

Each
1+
HK$376.790
5+
HK$361.740
10+
HK$354.650
20+
HK$347.750
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
4163405

RoHS

Each
1+
HK$530.230
5+
HK$458.170
10+
HK$449.140
20+
HK$440.500
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+
HK$729.590
5+
HK$630.340
10+
HK$618.010
20+
HK$606.170
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
4163404

RoHS

Each
1+
HK$530.230
5+
HK$458.170
10+
HK$449.140
20+
HK$440.500
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
5VA
-
240VAC
4163406

RoHS

Each
1+
HK$530.230
5+
HK$458.170
10+
HK$449.140
20+
HK$440.500
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
4163398

RoHS

Each
1+
HK$551.010
5+
HK$528.970
10+
HK$518.570
20+
HK$508.670
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
16VA
208VAC
480VAC
4163402

RoHS

Each
1+
HK$356.200
5+
HK$341.930
10+
HK$335.230
20+
HK$328.820
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
4163397

RoHS

Each
1+
HK$782.130
5+
HK$675.790
10+
HK$662.490
20+
HK$649.860
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
240VAC
300V
-
3 Phase
5VA
85V
300V
4163408

RoHS

Each
1+
HK$601.120
5+
HK$519.350
10+
HK$509.150
20+
HK$499.350
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
4163399

RoHS

Each
1+
HK$416.120
5+
HK$359.600
10+
HK$352.510
20+
HK$345.720
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
3.5VA
208VAC
480VAC
4163395

RoHS

Each
1+
HK$576.060
5+
HK$553.050
10+
HK$542.270
20+
HK$531.780
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
4163407

RoHS

Each
1+
HK$510.990
5+
HK$490.510
10+
HK$480.800
20+
HK$471.570
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
2056305

RoHS

Each
1+
HK$3,061.760
Min: 1 / Mult: 1
Zelio
DPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
194VAC
528VAC
1344233

RoHS

Each
1+
HK$746.910
5+
HK$683.770
10+
HK$620.620
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
1W
208VAC
480VAC
2455513

RoHS

Each
1+
HK$802.720
5+
HK$778.610
10+
HK$763.040
Min: 1 / Mult: 1
Zelio
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
-
-
2780442

RoHS

Each
1+
HK$1,229.510
Min: 1 / Mult: 1
Zelio RM22UB
DPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
1 Phase
2W
80V
300V
3111268

RoHS

Each
1+
HK$918.200
5+
HK$755.670
10+
HK$740.560
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
183VAC
528VAC
2295793

RoHS

Each
1+
HK$938.160
5+
HK$919.400
10+
HK$900.640
Min: 1 / Mult: 1
70 Series
SPDT
10A
DIN Rail, Panel
Screw
-
250VAC
415VAC
-
3 Phase
11VA
380VAC
415VAC
1895998

RoHS

Each
1+
HK$809.670
5+
HK$666.420
10+
HK$653.100
Min: 1 / Mult: 1
CM-PFE
SPDT
4A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
15VA
208VAC
440VAC
2780440

RoHS

Each
1+
HK$1,492.420
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
1 Phase
1.5W
15V
500VAC
3111267

RoHS

Each
1+
HK$1,351.960
5+
HK$1,324.930
10+
HK$1,297.890
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
-
250VAC
576VAC
-
3 Phase
15VA
380VAC
480VAC
4259624
Each
1+
HK$1,246.200
Min: 1 / Mult: 1
-
SPDT
10A
Socket
Plug In
-
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
2780443

RoHS

Each
1+
HK$2,840.120
Min: 1 / Mult: 1
Zelio RM35UB3
DPDT
5A
DIN Rail
Screw
-
250VAC
277VAC
-
3 Phase
3.9VA
114VAC
329VAC
3922060

RoHS

Each
1+
HK$1,103.460
Min: 1 / Mult: 1
-
DPDT-CO
8A
DIN Rail
Screw
-
250VAC
576VAC
-
3 Phase
4VA
208VAC
480VAC
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