Phase Monitoring Relays:

16 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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Relay Mounting
Relay Terminals
Switching Voltage Max
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Power Consumption
Phase Monitoring Range Min
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1 Filter(s) Selected
ComparePrice ForQuantity
1344233

RoHS

Each
1+
$149.990
($164.99)
5+
$137.060
($150.77)
10+
$124.120
($136.53)
Total:$149.99
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
Screw
250V
480V
3 Phase
1W
208VAC
480VAC
4163401

RoHS

Each
1+
$91.110
($100.22)
5+
$89.140
($98.05)
10+
$87.030
($95.73)
Total:$91.11
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
250V
480V
3 Phase
3VA
208VAC
480VAC
4163398

RoHS

Each
1+
$119.510
($131.46)
5+
$116.930
($128.62)
10+
$114.170
($125.59)
Total:$119.51
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
250V
480V
3 Phase
16VA
208VAC
480VAC
4163399

RoHS

Each
1+
$81.250
($89.38)
5+
$79.500
($87.45)
10+
$77.590
($85.35)
Total:$81.25
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
250V
480V
3 Phase
3.5VA
208VAC
480VAC
3111267

RoHS

Each
1+
$275.540
($303.09)
5+
$252.340
($277.57)
10+
$229.140
($252.05)
Total:$275.54
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
250V
576VAC
3 Phase
15VA
380VAC
480VAC
3922060

RoHS

Each
1+
$232.390
($255.63)
Total:$232.39
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT-CO
8A
DIN Rail
Screw
250V
576VAC
3 Phase
4VA
208VAC
480VAC
2504231

RoHS

Each
1+
$148.980
($163.88)
5+
$143.020
($157.32)
10+
$140.160
($154.18)
Total:$148.98
Min: 1 / Mult: 1
K8AK Series
DPDT-NC
5A
DIN Rail
Screw
250V
480V
3 Phase
-
200VAC
480VAC
4300430

RoHS

Each
1+
$318.630
($350.49)
Total:$318.63
Min: 1 / Mult: 1
PPB01 Series
SPDT
8A
Socket
Plug In
250V
-
3 Phase
2.5VA
380VAC
480VAC
4835985

RoHS

Each
1+
$232.260
($255.49)
5+
$226.130
($248.74)
10+
$221.370
($243.51)
Total:$232.26
Min: 1 / Mult: 1
DPA52 Series
SPDT
5A
DIN Rail
-
250V
480V
3 Phase
2VA
208VAC
480VAC
2813563
Each
1+
$216.290
($237.92)
Total:$216.29
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
Screw
240VAC
480V
3 Phase
6W
190VAC
480VAC
2813562
Each
1+
$249.660
($274.63)
Total:$249.66
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
Screw
240VAC
480V
3 Phase
6W
190VAC
480VAC
2578929

RoHS

Each
1+
$137.690
($151.46)
5+
$131.470
($144.62)
10+
$125.240
($137.76)
Total:$137.69
Min: 1 / Mult: 1
K8DT-PH Series
SPDT
-
DIN Rail
Screw
-
480V
3 Phase
2.6VA
200VAC
480VAC
4300429

RoHS

Each
1+
$228.830
($251.71)
5+
$211.880
($233.07)
10+
$207.650
($228.42)
Total:$228.83
Min: 1 / Mult: 1
DPB51 Series
SPDT
5A
DIN Rail, Panel
Screw
250V
-
3 Phase
13VA
208VAC
480VAC
4244638

RoHS

Each
1+
$123.990
($136.39)
5+
$121.520
($133.67)
10+
$119.040
($130.94)
Total:$123.99
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
Push In
400VAC
415VAC
3 Phase
1W
208VAC
480VAC
2987237

RoHS

OMRON INDUSTRIAL AUTOMATION
Each
1+
$137.680
($151.45)
5+
$125.790
($138.37)
10+
$113.900
($125.29)
Total:$137.68
Min: 1 / Mult: 1
K8AK-PH Series
DPDT-NC
5A
DIN Rail
Screw
250V
480V
3 Phase
4.1VA
200VAC
480VAC
9900136
Each
1+
$218.480
($240.33)
5+
$202.780
($223.06)
10+
$193.950
($213.34)
Total:$218.48
Min: 1 / Mult: 1
K8AB Series
-
6A
-
Screw
250V
480V
3 Phase
-
220VAC
480VAC
1-16 of 16 items
of 1 page(s)

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