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
9515399

RoHS

Each
1+
NT$5,170.550
5+
NT$4,961.460
10+
NT$4,772.750
Min: 1 / Mult: 1
-
DPDT
-
DIN Rail
Screw
230VAC
500VAC
3 Phase
-
-
-
2835320

RoHS

Each
1+
NT$4,858.760
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
380V
480V
1390498

RoHS

Each
1+
NT$6,403.020
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
DPDT
3A
DIN Rail
Screw
400VAC
690VAC
3 Phase
2W
160VAC
690VAC
2780442

RoHS

Each
1+
NT$4,663.480
Min: 1 / Mult: 1
Harmony RM22UB Series
DPDT
8A
DIN Rail
Screw
250VAC
240VAC
1 Phase
2W
80V
300V
3111268

RoHS

Each
1+
NT$3,059.470
5+
NT$2,799.650
10+
NT$2,539.830
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
183VAC
528VAC
2056304

RoHS

Each
1+
NT$5,079.930
5+
NT$4,978.340
10+
NT$4,876.740
Min: 1 / Mult: 1
Harmony RM17 Series
DPDT
5A
DIN Rail
Screw
250VAC
440VAC
3 Phase
22VA
183VAC
484V
2056305

RoHS

Each
1+
NT$12,126.970
Min: 1 / Mult: 1
Harmony RM35 Series
DPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
22VA
194VAC
528VAC
4163405

RoHS

Each
1+
NT$2,113.680
5+
NT$2,069.110
10+
NT$2,020.450
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
240VAC
1 Phase, 3 Phase
5VA
-
240VAC
4163396

RoHS

Each
1+
NT$2,908.320
5+
NT$2,846.160
10+
NT$2,779.510
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
240VAC
500VAC
3 Phase
5VA
145VAC
500VAC
4163397

RoHS

Each
1+
NT$4,395.470
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
240VAC
300V
3 Phase
5VA
85V
300V
4163408

RoHS

Each
1+
NT$2,395.970
5+
NT$2,345.260
10+
NT$2,290.060
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
4163407

RoHS

Each
1+
NT$2,264.710
5+
NT$2,216.460
10+
NT$2,164.530
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
4163406

RoHS

Each
1+
NT$2,113.680
5+
NT$2,069.110
10+
NT$2,020.450
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
3111267

RoHS

Each
1+
NT$5,454.860
5+
NT$4,999.910
10+
NT$4,544.960
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
250VAC
576VAC
3 Phase
15VA
380V
480V
2780443

RoHS

Each
1+
NT$9,402.280
Min: 1 / Mult: 1
Harmony RM35UB3 Series
DPDT
5A
DIN Rail
Screw
250VAC
277VAC
3 Phase
3.9VA
114VAC
329VAC
3111269

RoHS

Each
1+
NT$5,673.450
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
250VAC
240VAC
3 Phase
10VA
200VAC
240VAC
9514430

RoHS

Each
1+
NT$24,608.310
Min: 1 / Mult: 1
BD 9080 Series
DPDT
-
DIN Rail
Screw
230VAC
400VAC
3 Phase
2.4VA
-
-
3214139

RoHS

Each
1+
NT$10,368.740
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
18VA
300VAC
500VAC
4163404

RoHS

Each
1+
NT$2,113.680
5+
NT$2,069.110
10+
NT$2,020.450
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
240VAC
3 Phase
5VA
-
240VAC
3050817

RoHS

Each
1+
NT$3,774.080
5+
NT$3,698.600
10+
NT$3,623.120
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail, Panel
Screw
400VAC
480VAC
3 Phase
800mW
170VAC
520VAC
3214134

RoHS

Each
1+
NT$10,801.990
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
3VA
300VAC
500VAC
3223348

RoHS

Each
1+
NT$8,711.960
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
Screwless
230VAC
500VAC
3 Phase
-
300VAC
500VAC
2780438

RoHS

Each
1+
NT$5,846.590
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
Screw
250VAC
240VAC
1 Phase
1.5W
50mV
5V
3223357

RoHS

Each
1+
NT$9,794.300
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
Screwless
230VAC
280VAC
3 Phase
-
180VAC
280VAC
3223356

RoHS

Each
1+
NT$9,372.300
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
Screwless
230VAC
500VAC
3 Phase
-
300VAC
500VAC
1-25 of 43 items
of 2 page(s)

Popular Suppliers

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