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.
Show More
View
Buyer
Engineer
Manufacturer
Product Range
Contact Configuration
Contact Current
Relay Mounting
Relay Terminals
Switching Voltage Max
Supply Voltage Max
Phase Type
Power Consumption
Phase Monitoring Range Min
Phase Monitoring Range Max
Packaging
Filter(s) Applied
1 Filter(s) Selected
ComparePrice ForQuantity
4163407

RoHS

Each
1+
RM365.470
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
2056305

RoHS

Each
1+
RM1,243.830
Min: 1 / Mult: 1
Zelio
DPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
22VA
194VAC
528VAC
2780442

RoHS

Each
1+
RM979.110
Min: 1 / Mult: 1
Zelio RM22UB
DPDT
8A
DIN Rail
Screw
250VAC
240VAC
1 Phase
2W
80V
300V
2835320

RoHS

Each
1+
RM766.790
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
380V
480V
3111268

RoHS

Each
1+
RM350.990
5+
RM343.980
10+
RM336.960
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
183VAC
528VAC
2780440

RoHS

Each
1+
RM876.490
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
250VAC
240VAC
1 Phase
1.5W
15V
500V
3111267

RoHS

Each
1+
RM637.210
5+
RM624.470
10+
RM611.730
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
576VAC
3 Phase
15VA
380V
480V
2780443

RoHS

Each
1+
RM1,470.490
Min: 1 / Mult: 1
Zelio RM35UB3
DPDT
5A
DIN Rail
Screw
250VAC
277VAC
3 Phase
3.9VA
114VAC
329VAC
9514430

RoHS

Each
1+
RM3,567.020
Min: 1 / Mult: 1
BD 9080
DPDT
-
DIN Rail
Screw
230VAC
400VAC
3 Phase
2.4VA
-
-
9515399

RoHS

Each
1+
RM700.780
5+
RM686.770
10+
RM672.750
Min: 1 / Mult: 1
MK 9056
DPDT
-
DIN Rail
Screw
230VAC
500VAC
3 Phase
-
-
-
3214139

RoHS

Each
1+
RM1,222.620
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
18VA
300VAC
500V
4163405

RoHS

Each
1+
RM372.370
5+
RM325.480
10+
RM322.470
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+
RM512.350
5+
RM447.770
10+
RM443.580
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
240VAC
500VAC
3 Phase
5VA
145VAC
500V
4163404

RoHS

Each
1+
RM372.370
5+
RM325.480
10+
RM322.470
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
240VAC
3 Phase
5VA
-
240VAC
4163406

RoHS

Each
1+
RM372.370
5+
RM325.480
10+
RM322.470
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
4163397

RoHS

Each
1+
RM549.250
5+
RM480.060
10+
RM475.580
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
240VAC
300V
3 Phase
5VA
85V
300V
4163408

RoHS

Each
1+
RM422.130
5+
RM368.930
10+
RM365.470
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
3050817

RoHS

Each
1+
RM428.170
5+
RM419.610
10+
RM411.050
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail, Panel
Screw
400VAC
480VAC
3 Phase
800mW
170VAC
520VAC
3214134

RoHS

Each
1+
RM1,240.680
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
3VA
300VAC
500V
3223348

RoHS

Each
1+
RM1,369.020
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
230VAC
500VAC
3 Phase
-
300VAC
500V
2780438

RoHS

Each
1+
RM1,025.930
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
250VAC
240VAC
1 Phase
1.5W
50mV
5V
3223357

RoHS

Each
1+
RM1,539.160
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
230VAC
280VAC
3 Phase
-
180VAC
280VAC
3223356

RoHS

Each
1+
RM1,345.880
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
230VAC
500VAC
3 Phase
-
300VAC
500V
2102318

RoHS

Each
1+
RM2,013.580
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Spring Clamp
300VAC
500VAC
3 Phase
18VA
300VAC
500V
3223352

RoHS

Each
1+
RM1,191.610
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
230VAC
400VAC
3 Phase
-
360VAC
440VAC
1-25 of 41 items
of 2 page(s)

Popular Suppliers

ABB
SCHNEIDER ELECTRIC
OMRON
EATON MOELLER
SIEMENS
TE CONNECTIVITY
PANASONIC
CROUZET
Trade Account