Phase Monitoring Relays:

107 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
9515399

RoHS

Each
1+
HK$1,090.880
5+
HK$1,063.450
10+
HK$1,059.030
-
DPDT
-
DIN Rail
Screw
-
230VAC
500VAC
-
3 Phase
-
-
-
4163401

RoHS

Each
1+
HK$467.580
5+
HK$457.660
10+
HK$447.110
20+
HK$429.600
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
3VA
208VAC
480VAC
4163407

RoHS

Each
1+
HK$568.650
5+
HK$556.620
10+
HK$543.750
20+
HK$522.440
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
4163395

RoHS

Each
1+
HK$641.230
5+
HK$627.620
10+
HK$613.170
20+
HK$589.220
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
4163403

RoHS

Each
1+
HK$419.370
5+
HK$410.400
10+
HK$401.010
20+
HK$385.290
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
4163396

RoHS

Each
1+
HK$730.800
5+
HK$715.290
10+
HK$698.840
20+
HK$671.510
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
4163405

RoHS

Each
1+
HK$531.200
5+
HK$519.910
10+
HK$507.990
20+
HK$488.050
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
240VAC
-
1 Phase, 3 Phase
5VA
-
240VAC
4163404

RoHS

Each
1+
HK$531.200
5+
HK$519.910
10+
HK$507.990
20+
HK$488.050
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
5VA
-
240VAC
4163406

RoHS

Each
1+
HK$531.200
5+
HK$519.910
10+
HK$507.990
20+
HK$488.050
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
4163398

RoHS

Each
1+
HK$613.170
5+
HK$600.300
10+
HK$586.480
20+
HK$563.480
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
16VA
208VAC
480VAC
4163402

RoHS

Each
1+
HK$396.370
5+
HK$388.030
10+
HK$379.070
20+
HK$364.190
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
4163397

RoHS

Each
1+
HK$1,007.000
5+
HK$954.670
10+
HK$930.410
20+
HK$907.410
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
240VAC
300V
-
3 Phase
5VA
85V
300V
4163408

RoHS

Each
1+
HK$602.090
5+
HK$589.330
10+
HK$575.820
20+
HK$553.140
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
4163399

RoHS

Each
1+
HK$416.840
5+
HK$407.970
10+
HK$398.690
20+
HK$383.080
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
3.5VA
208VAC
480VAC
2056305

RoHS

Each
1+
HK$3,111.910
Harmony RM35 Series
DPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
194VAC
528VAC
2056304

RoHS

Each
1+
HK$1,303.600
5+
HK$1,277.530
10+
HK$1,251.460
Harmony RM17 Series
DPDT
5A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
22VA
183V
484V
1344233

RoHS

Each
1+
HK$826.610
5+
HK$771.280
10+
HK$715.940
70 Series
SPDT
6A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
1W
208VAC
480VAC
2455513

RoHS

Each
1+
HK$830.500
5+
HK$805.560
10+
HK$789.450
Harmony RM17 Series
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
-
-
2835320

RoHS

Each
1+
HK$977.820
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
380V
480VAC
2780442

RoHS

Each
1+
HK$989.600
Harmony RM22UB Series
DPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
1 Phase
2W
80V
300V
3111268

RoHS

Each
1+
HK$581.500
5+
HK$569.870
10+
HK$558.240
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
183V
528VAC
2295793

RoHS

Each
1+
HK$1,014.920
5+
HK$994.630
10+
HK$974.330
70 Series
SPDT
10A
DIN Rail, Panel
Screw
-
250VAC
415VAC
-
3 Phase
11VA
380V
415VAC
1895998

RoHS

Each
1+
HK$826.580
5+
HK$680.300
10+
HK$666.700
CM-PFE Series
SPDT
4A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
15VA
208VAC
440VAC
2780440

RoHS

Each
1+
HK$1,049.390
Harmony RM22UA Series
DPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
1 Phase
1.5W
15V
500VAC
3214134

RoHS

Each
1+
HK$2,766.490
EMR6 Series
DPDT
4A
DIN Rail
Screw
-
250VAC
500VAC
-
3 Phase
3VA
300VAC
500VAC
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