Phase Monitoring Relays:

178 Products Found

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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06AC2593

RoHS

Date/Lot Code

Each
Pricing is unavailable. Please contact customer services.
Harmony RM22 Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
380V
480V
-
53R1959

RoHS

Each
1+
$160.280
10+
$147.080
25+
$145.200
50+
$141.840
100+
$133.170
More Pricing...
Min: 1 / Mult: 1
-
-
SPST-NC
-
DIN Rail
Screw
-
230VAC
400VAC
-
3 Phase
-
-
-
-
85AK6218

RoHS

Each
1+
$342.800
Min: 1 / Mult: 1
PPB01 Series
-
SPDT
8A
Socket
Plug In
-
250VAC
-
-
3 Phase
2.5VA
380V
480V
-
69AK8655

RoHS

Each
1+
$64.680
100+
$64.680
250+
$64.680
500+
$64.680
1000+
$64.680
Min: 1 / Mult: 1
-
-
SPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
69AK8663

RoHS

Each
1+
$183.440
100+
$154.610
250+
$142.030
500+
$136.270
1000+
$129.450
Min: 1 / Mult: 1
-
-
DPDT
5A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
5VA
-
240VAC
-
69AK8664

RoHS

Each
1+
$183.440
100+
$154.610
250+
$142.030
500+
$136.270
1000+
$129.450
Min: 1 / Mult: 1
-
-
DPDT
5A
DIN Rail
Screw
-
250VAC
240VAC
-
1 Phase, 3 Phase
5VA
-
240VAC
-
69AK8666

RoHS

Each
1+
$207.910
100+
$175.230
250+
$160.980
500+
$154.450
1000+
$146.720
Min: 1 / Mult: 1
-
-
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
69AK8657

RoHS

Each
1+
$270.540
100+
$228.030
250+
$209.480
500+
$200.970
1000+
$190.920
Min: 1 / Mult: 1
-
-
DPDT
5A
DIN Rail
Screw
-
240VAC
300V
-
3 Phase
5VA
85V
300V
-
82AK2916
Each
1+
$277.620
10+
$257.780
25+
$248.640
50+
$239.480
100+
$228.810
Min: 1 / Mult: 1
SLU Series
-
SPDT
10A
Socket
Plug In
-
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
-
69AK8658

RoHS

Each
1+
$224.210
100+
$188.970
250+
$173.600
500+
$166.550
1000+
$158.230
Min: 1 / Mult: 1
-
-
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
16VA
208VAC
480V
-
69AK8662

RoHS

Each
1+
$153.350
100+
$129.250
250+
$118.740
500+
$113.910
1000+
$108.220
Min: 1 / Mult: 1
-
-
SPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
-
69AK8661

RoHS

Each
1+
$144.930
100+
$122.140
250+
$112.200
500+
$107.660
1000+
$102.270
Min: 1 / Mult: 1
-
-
SPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
-
69AK8660

RoHS

Each
1+
$161.420
100+
$136.060
250+
$124.990
500+
$119.920
1000+
$113.930
Min: 1 / Mult: 1
-
-
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
3VA
208VAC
480V
-
69AK8667

RoHS

Each
1+
$207.910
100+
$175.230
250+
$160.980
500+
$154.450
1000+
$146.720
Min: 1 / Mult: 1
-
-
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
69AK8659

RoHS

Each
1+
$39.720
100+
$39.720
250+
$39.720
500+
$39.720
1000+
$39.720
Min: 1 / Mult: 1
-
-
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
3.5VA
208VAC
480V
-
69AK8665

RoHS

Each
1+
$183.440
100+
$154.610
250+
$142.030
500+
$136.270
1000+
$129.450
Min: 1 / Mult: 1
-
-
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
69AK8656

RoHS

Each
1+
$252.330
100+
$212.670
250+
$195.380
500+
$187.450
1000+
$178.080
Min: 1 / Mult: 1
-
-
DPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500VAC
-
82AK2917
Each
1+
$329.490
Min: 1 / Mult: 1
SLU Series
-
SPDT
10A
Socket
Plug In
-
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
-
87AK0975
Each
1+
$175.260
10+
$162.800
25+
$152.130
50+
$146.790
100+
$141.450
Min: 1 / Mult: 1
200 Series
-
SPDT
8A
DIN Rail
Screw
-
250VAC
208V
-
3 Phase
2VA
-
208V
-
87AK0976
Each
1+
$161.560
10+
$150.080
25+
$140.240
50+
$135.320
100+
$130.400
Min: 1 / Mult: 1
200 Series
-
SPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
2VA
-
240VAC
-
87AK0978
Each
1+
$164.300
10+
$152.630
25+
$142.620
50+
$137.610
100+
$132.610
Min: 1 / Mult: 1
200 Series
-
SPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
2VA
-
480V
-
87AK0979
Each
1+
$197.160
10+
$183.150
25+
$171.140
50+
$165.140
100+
$159.130
Min: 1 / Mult: 1
200 Series
-
SPDT
8A
DIN Rail
Screw
-
250VAC
575V
-
3 Phase
2VA
-
575V
-
56Y5878
Each
1+
$30.180
Min: 1 / Mult: 1
-
-
SPDT
5A
DIN Rail
Screw
-
250VAC
230VAC
-
3 Phase
8VA
170VAC
290VAC
-
91Y2598

RoHS

Date/Lot Code

Each
1+
$61.300
5+
$61.300
10+
$61.300
25+
$61.300
50+
$61.300
Min: 1 / Mult: 1
K8DT-PM Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
1.7VA
200VAC
240VAC
UL
27C0651

RoHS

Date/Lot Code

Each
1+
$161.580
5+
$157.550
10+
$153.500
25+
$145.430
50+
$137.350
More Pricing...
Min: 1 / Mult: 1
PAP Series
-
SPDT
10A
Socket
Quick Connect
-
277VAC
480VAC
-
3 Phase
40VA
330VAC
380VAC
-
51-75 of 178 items
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