Newark 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
86K0442

RoHS

Each
1+
$262.440
Total:$262.44
Min: 1 / Mult: 1
MWU Series
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
1.8VA
183VAC
528VAC
-
05M4097

RoHS

Each
1+
$242.130
5+
$231.430
10+
$225.000
25+
$218.580
Total:$242.13
Min: 1 / Mult: 1
DPA53 Series
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
13VA
320VAC
480VAC
-
67C0900

RoHS

Each
1+
$154.090
5+
$147.270
10+
$143.190
25+
$139.100
Total:$154.09
Min: 1 / Mult: 1
DPA51 Series
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
13VA
177VAC
550VAC
-
72Y1070

RoHS

Each
1+
$140.670
5+
$134.810
10+
$131.860
25+
$118.320
50+
$110.010
More Pricing...
Total:$140.67
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
Screw
-
-
480VAC
-
3 Phase
-
-
-
-
38Y7644

RoHS

Date/Lot Code

Each
1+
$145.470
5+
$139.140
10+
$135.990
25+
$122.700
50+
$113.850
More Pricing...
Total:$145.47
Min: 1 / Mult: 1
K8AK Series
DPDT-NC
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
4.1VA
200VAC
480VAC
-
70Y5750

RoHS

Each
1+
$160.480
5+
$150.420
10+
$141.450
25+
$131.890
50+
$125.510
More Pricing...
Total:$160.48
Min: 1 / Mult: 1
K8AK Series
DPDT-NC
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
-
200VAC
480VAC
-
72Y1059

RoHS

Each
1+
$299.330
5+
$279.850
10+
$271.550
25+
$262.660
50+
$251.000
Total:$299.33
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
Screw
-
-
480VAC
-
3 Phase
-
-
-
-
45AC6247

RoHS

Each
1+
$218.070
5+
$208.480
10+
$202.720
25+
$196.970
Total:$218.07
Min: 1 / Mult: 1
DPA52 Series
SPDT
5A
DIN Rail
-
-
480VAC
208VAC
-
3 Phase
2VA
480VAC
208VAC
CE, CSA, UL
84X8729

RoHS

Date/Lot Code

Each
1+
$382.370
5+
$357.430
10+
$337.480
25+
$315.870
50+
$299.240
More Pricing...
Total:$382.37
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
4.4VA
380VAC
480VAC
-
05M4096

RoHS

Each
1+
$232.690
5+
$222.400
10+
$216.230
25+
$210.060
Total:$232.69
Min: 1 / Mult: 1
DPA53 Series
SPDT
5A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
7VA
160VAC
240VAC
-
41Y4153

RoHS

Each
1+
$442.860
5+
$413.960
10+
$390.870
25+
$365.840
50+
$346.580
More Pricing...
Total:$442.86
Min: 1 / Mult: 1
K8AK-AS Series
SPDT
5A
DIN Rail
Screw
-
250V
24V
-
1 Phase
-
-
-
-
15AJ5694

RoHS

Date/Lot Code

Each
1+
$1,315.100
5+
$1,175.070
10+
$1,025.240
25+
$945.980
50+
$852.820
Total:$1,315.10
Min: 1 / Mult: 1
PC1 Series
SPDT
5A
DIN Rail
Screw
-
250V
-
-
3 Phase
3VA
190VAC
600VAC
-
09P6672

RoHS

Date/Lot Code

Each
Pricing is unavailable. Please contact customer services.
Harmony RM35UB3 Series
DPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
2.9VA
194V
528VAC
-
12AH0513

RoHS

Each
1+
$346.540
5+
$331.600
10+
$322.640
25+
$313.670
Total:$346.54
Min: 1 / Mult: 1
DPC01 Series
2 x SPDT
5A
DIN Rail
Screw
-
24VDC
690VAC
-
3 Phase
-
177VAC
793VAC
-
66AH6827

RoHS

Each
1+
$215.970
Total:$215.97
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
22VA
-
-
-
27R0593

RoHS

Each
1+
$369.120
5+
$353.200
10+
$343.650
25+
$334.100
Total:$369.12
Min: 1 / Mult: 1
DPC01 Series
2 x SPDT
5A
DIN Rail
Screw
-
24VDC
480VAC
-
3 Phase
-
374VAC
552VAC
-
67AH3181

RoHS

Each
1+
$234.290
Total:$234.29
Min: 1 / Mult: 1
Harmony RM17 Series
DPDT
5A
DIN Rail
Screw
-
250V
440VAC
-
3 Phase
22VA
183VAC
484V
-
69AK8663

RoHS

Each
1+
$191.780
100+
$161.650
250+
$148.500
500+
$142.470
1000+
$135.350
Total:$191.78
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
5VA
-
240VAC
-
69AK8664

RoHS

Each
1+
$191.780
100+
$161.650
250+
$148.500
500+
$142.470
1000+
$135.350
Total:$191.78
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
240VAC
-
1 Phase, 3 Phase
5VA
-
240VAC
-
69AK8666

RoHS

Each
1+
$217.370
100+
$183.210
250+
$168.310
500+
$161.480
1000+
$153.400
Total:$217.37
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
10VA
-
415VAC
-
69AK8657

RoHS

Each
1+
$282.880
100+
$238.430
250+
$219.040
500+
$210.140
1000+
$199.640
Total:$282.88
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
-
240VAC
300V
-
3 Phase
5VA
85V
300V
-
69AK8658

RoHS

Each
1+
$234.470
100+
$197.630
250+
$181.550
500+
$174.180
1000+
$165.470
Total:$234.47
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
16VA
208VAC
480VAC
-
69AK8655

RoHS

Each
1+
$200.140
100+
$163.450
250+
$147.440
500+
$140.100
1000+
$131.430
Total:$200.14
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
69AK8662

RoHS

Each
1+
$160.340
100+
$135.140
250+
$124.140
500+
$119.110
1000+
$113.150
Total:$160.34
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
15VA
-
415VAC
-
69AK8661

RoHS

Each
1+
$151.580
100+
$127.760
250+
$117.360
500+
$112.610
1000+
$106.980
Total:$151.58
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
415VAC
-
3 Phase
15VA
-
415VAC
-
1-25 of 65 items
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