Phase Monitoring Relays:

16 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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Relay Mounting
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Phase Monitoring Range Min
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1 Filter(s) Selected
ComparePrice forQuantity
03M5287
Each
1+
$210.170
Min: 1 / Mult: 1
SLU-100 Series
SPDT
10A
-
Plug In
240VAC
550VAC
3 Phase
90VA
200VAC
500VAC
-
34AC4485

RoHS

Date/Lot Code

Each
1+
$281.970
5+
$266.510
10+
$251.050
25+
$239.700
Min: 1 / Mult: 1
PLMU Series
SPDT
10A
Socket
Quick Connect
240VAC
480VAC
3 Phase
5W
200VAC
480VAC
CSA, UL
66Y0750

RoHS

Each
1+
$255.880
10+
$243.090
25+
$230.290
50+
$217.500
100+
$204.700
Min: 1 / Mult: 1
-
DPDT
4A
DIN Rail
Screw
24V
500VAC
3 Phase
-
200VAC
500VAC
CSA, IEC, UL
38Y7644

RoHS

Date/Lot Code

Each
1+
$132.890
5+
$129.940
10+
$126.980
25+
$121.060
50+
$115.140
More Pricing...
Min: 1 / Mult: 1
K8AK-PH Series
DPDT-NC
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
4.1VA
200VAC
480VAC
-
06X0781
Each
1+
$218.930
Min: 1 / Mult: 1
-
SPDT
10A
-
Plug In
240VAC
550VAC
3 Phase
90VA
200VAC
500VAC
-
82AK2917
Each
1+
$324.350
Min: 1 / Mult: 1
-
SPDT
10A
Socket
Plug In
240VAC
-
3 Phase
90VA
200VAC
430VAC
-
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
55AJ2778

RoHS

Each
1+
$347.350
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
240VAC
3 Phase
10VA
200VAC
240VAC
-
34AC3146

RoHS

Each
1+
$386.350
5+
$360.950
10+
$335.540
25+
$316.910
Min: 1 / Mult: 1
HLMU Series
DPDT
10A
Panel Mount
Screw
240VAC
480VAC
3 Phase
-
200VAC
480VAC
UL
66AH6831

RoHS

Each
1+
$251.660
Min: 1 / Mult: 1
Zelio RM22TU
DPDT
8A
DIN Rail
Screw
250VAC
240VAC
3 Phase
10VA
200VAC
240VAC
-
22AJ2357

RoHS

Date/Lot Code

Each
Pricing is unavailable. Please contact customer services.
Zelio Series
DPDT
8A
DIN Rail
Screw
250VAC
288VAC
3 Phase
10VA
200VAC
240VAC
-
91Y2599

RoHS

Each
1+
$403.830
5+
$375.800
10+
$353.360
25+
$329.050
50+
$310.360
More Pricing...
Min: 1 / Mult: 1
K8DT-PM Series
SPST-NO
5A
DIN Rail
Screw
250VAC
240VAC
3 Phase
1.7VA
200VAC
240VAC
UL
91Y2596

RoHS

Each
1+
$165.890
5+
$158.210
10+
$154.360
25+
$138.240
50+
$127.490
More Pricing...
Min: 1 / Mult: 1
K8DT-PH Series
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
2.6VA
200VAC
480VAC
UL
91Y2602

RoHS

Each
1+
$424.150
5+
$396.580
10+
$383.860
25+
$371.130
50+
$352.040
Min: 1 / Mult: 1
K8DT-PZ Series
SPDT
5A
DIN Rail
Screw
250VAC
240VAC
3 Phase
1.7VA
200VAC
240VAC
UL
91Y2603

RoHS

Each
1+
$457.640
5+
$427.890
10+
$414.160
25+
$400.440
50+
$379.830
Min: 1 / Mult: 1
K8DT-PZ Series
SPST-NO
5A
DIN Rail
Screw
250VAC
240VAC
3 Phase
1.7VA
200VAC
240VAC
UL
34AH3017

RoHS

Each
1+
$277.850
10+
$264.730
25+
$251.590
50+
$238.470
100+
$225.350
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
230VAC
500VAC
3 Phase
-
200VAC
500VAC
-
1-16 of 16 items
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