Phase Monitoring Relays:

33 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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05M4097

RoHS

Each
1+
$217.660
5+
$206.960
10+
$200.540
25+
$194.120
Min: 1 / Mult: 1
DPA53 Series
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
13VA
320VAC
480VAC
-
34AC8661

RoHS

Date/Lot Code

Each
1+
$258.630
5+
$241.660
10+
$224.680
25+
$212.240
50+
$203.220
Min: 1 / Mult: 1
201A Series
SPDT
10A
Socket
Quick Connect
240VAC
480VAC
3 Phase
5W
190VAC
480VAC
UL
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
34AC8662

RoHS

Date/Lot Code

Each
1+
$215.390
5+
$198.820
10+
$198.820
25+
$198.820
50+
$198.820
Min: 1 / Mult: 1
201A-AU Series
SPDT
10A
-
Quick Connect
240VAC
480VAC
3 Phase
5W
190VAC
480VAC
UL
34AC8572

RoHS

Date/Lot Code

Each
1+
$381.660
5+
$356.550
10+
$331.450
25+
$313.060
Min: 1 / Mult: 1
102A Series
SPDT
10A
Panel Mount
Screw
240VAC
480VAC
3 Phase
5W
190VAC
480VAC
CSA, UL
34AC8741

RoHS

Date/Lot Code

Each
1+
$418.800
5+
$391.250
10+
$363.680
25+
$343.500
Min: 1 / Mult: 1
250A Series
DPDT
10A
Panel Mount
Screw
240VAC
190VAC
3 Phase
5W
190VAC
480VAC
CSA, UL
34AC8900

RoHS

Date/Lot Code

Each
1+
$258.110
5+
$241.180
10+
$224.240
25+
$211.830
50+
$202.820
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
Screw
240VAC
480VAC
3 Phase
6W
190VAC
480VAC
CE, IEC, UL
34AC8897

RoHS

Date/Lot Code

Each
1+
$450.380
5+
$420.730
10+
$391.090
25+
$369.380
Min: 1 / Mult: 1
455 Series
SPDT
10A
Panel Mount
Screw
240VAC
480VAC
3 Phase
6W
190VAC
480VAC
CSA, UL
84X8729

RoHS

Date/Lot Code

Each
1+
$359.100
5+
$334.160
10+
$314.200
25+
$292.600
50+
$275.970
More Pricing...
Min: 1 / Mult: 1
K8AK-PM Series
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
4.4VA
380VAC
480VAC
-
55AJ2777

RoHS

Each
1+
$291.180
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
576VAC
3 Phase
15VA
380VAC
480VAC
-
26AK3439

RoHS

Each
1+
$239.950
5+
$228.920
10+
$220.790
25+
$212.580
50+
$197.270
Min: 1 / Mult: 1
-
DPDT-CO
8A
DIN Rail
Screw
250VAC
576VAC
3 Phase
4VA
208VAC
480VAC
-
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
-
85AK6218

RoHS

Each
1+
$336.270
Min: 1 / Mult: 1
PPB01 Series
SPDT
8A
Socket
Plug In
250VAC
-
3 Phase
2.5VA
380VAC
480VAC
-
69AK8658

RoHS

Each
1+
$112.600
100+
$103.210
250+
$103.210
500+
$103.210
1000+
$95.270
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
16VA
208VAC
480VAC
-
69AK8660

RoHS

Each
1+
$81.070
100+
$74.310
250+
$74.310
500+
$74.310
1000+
$68.600
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
3VA
208VAC
480VAC
-
69AK8659

RoHS

Each
1+
$47.480
100+
$47.480
250+
$47.480
500+
$47.480
1000+
$47.480
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
3.5VA
208VAC
480VAC
-
85AK4169

RoHS

Each
1+
$272.740
5+
$238.560
10+
$234.750
Min: 1 / Mult: 1
DPB51 Series
SPDT
5A
DIN Rail, Panel
Screw
250VAC
-
3 Phase
13VA
208VAC
480VAC
-
06X0945
Each
1+
$277.310
Min: 1 / Mult: 1
SUA Series
SPDT
10A
-
Plug In
240VAC
-
3 Phase
360VA
430VAC
480VAC
-
34AC4490

RoHS

Each
1+
$248.010
5+
$237.430
10+
$213.230
25+
$205.670
50+
$202.650
More Pricing...
Min: 1 / Mult: 1
PLM Series
SPDT
10A
Socket
Quick Connect
240VAC
480VAC
3 Phase
3VA
400VAC
480VAC
CSA, UL
93C1876

RoHS

Each
5+
$309.000
10+
$299.240
25+
$289.490
Min: 5 / Mult: 5
DWB01 Series
SPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
13VA
-
480VAC
-
34AC8907

RoHS

Each
1+
$324.000
5+
$302.720
10+
$281.420
25+
$265.830
Min: 1 / Mult: 1
460 Series
SPST-NO, SPST-NC
8A
DIN Rail, Panel
Screw
240VAC
480VAC
3 Phase
6W
190VAC
480VAC
UL
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
34AC8664

RoHS

Each
1+
$258.630
5+
$241.660
10+
$224.700
25+
$212.240
50+
$203.240
Min: 1 / Mult: 1
201A Series
SPDT
10A
Socket
Quick Connect
240VAC
480VAC
3 Phase
5W
190VAC
480VAC
UL
09P6658

RoHS

Each
Pricing is unavailable. Please contact customer services.
Zelio Series
SPDT
5A
DIN Rail
Screw
250VAC
528VAC
3 Phase
22VA
208VAC
480VAC
-
34AC8670

RoHS

Each
1+
$216.800
5+
$202.580
10+
$188.380
25+
$177.950
50+
$170.390
Min: 1 / Mult: 1
202 Series
SPDT
10A
Socket
Quick Connect / Screw
240VAC
480VAC
3 Phase
5W
190VAC
480VAC
IEC, UL
1-25 of 33 items
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