Phase Monitoring Relays:

134 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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34AH3014

RoHS

Each
1+
$403.470
5+
$393.960
10+
$384.460
25+
$365.440
Min: 1 / Mult: 1
CM Series
-
DPDT
4A
DIN Rail
Screwless
-
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
86K0441

RoHS

Each
1+
$151.270
Min: 1 / Mult: 1
MWG Series
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
1.8VA
183VAC
528VAC
-
25R0991

RoHS

Each
Pricing is unavailable. Please contact customer services.
DPA53 Series
-
SPDT
5A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
7VA
160VAC
240VAC
-
38Y9927

RoHS

Each
1+
$351.390
5+
$340.680
10+
$323.650
25+
$306.700
Min: 1 / Mult: 1
PMP Series
-
SPDT
10A
-
Quick Connect
-
277VAC
-
-
3 Phase
40VA
345VAC
660VAC
CE, UL
45AC6248

RoHS

Each
5+
$208.910
10+
$202.990
25+
$197.070
Min: 5 / Mult: 5
DPB52 Series
-
SPDT
5A
DIN Rail
-
-
480VAC
208VAC
-
3 Phase
2VA
480VAC
208VAC
CE, CSA, UL
23AH3162

RoHS

Each
1+
$277.920
5+
$269.100
10+
$256.940
25+
$244.760
50+
$213.270
Min: 1 / Mult: 1
EMR6 Series
-
DPDT
4A
DIN Rail
Screw
-
500V
500VAC
-
3 Phase
15VA
300VAC
500VAC
-
55AJ2778

RoHS

Each
1+
$214.930
Min: 1 / Mult: 1
Harmony RM22 Series
-
DPDT
8A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
10VA
200VAC
240VAC
-
31M9800

RoHS

Each
1+
$294.250
5+
$279.540
10+
$270.710
25+
$261.890
Min: 3 / Mult: 3
DPC01 Series
-
DPDT
8A
Socket
Quick Connect
-
250V
115VAC
-
3 Phase
8VA
85VAC
132VAC
CSA, UL
93C1876

RoHS

Each
5+
$259.280
10+
$251.760
25+
$244.250
Min: 5 / Mult: 5
DWB01 Series
-
SPDT
8A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
13VA
-
480VAC
-
86K0444

RoHS

Each
1+
$248.880
Min: 1 / Mult: 1
MWUA Series
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
1.8VA
183VAC
528VAC
-
16C3175

RoHS

Each
5+
$131.850
10+
$128.030
25+
$124.210
Min: 5 / Mult: 5
DPA01 Series
-
DPDT
8A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
6VA
177VAC
275VAC
-
50M2856

RoHS

Each
5+
$181.710
10+
$176.450
25+
$171.180
Min: 5 / Mult: 5
DPA01 Series
-
SPDT
8A
DIN Rail
Screw
-
250V
690VAC
-
3 Phase
15VA
510VAC
760VAC
-
34AC8907

RoHS

Each
1+
$227.200
5+
$208.160
10+
$189.110
25+
$177.160
Min: 1 / Mult: 1
460 Series
-
SPST-NO, SPST-NC
8A
DIN Rail, Panel
Screw
-
240VAC
480VAC
-
3 Phase
6VA
190VAC
480VAC
UL
34AC3146

RoHS

Each
1+
$268.670
5+
$246.320
10+
$223.970
25+
$210.040
Min: 1 / Mult: 1
HLMU Series
-
DPDT
10A
Panel Mount
Screw
-
240VAC
480VAC
-
3 Phase
-
200VAC
480VAC
UL
34AC8664

RoHS

Date/Lot Code

Each
1+
$186.820
5+
$171.010
10+
$155.220
25+
$145.220
50+
$138.630
Min: 1 / Mult: 1
201A Series
-
SPDT
10A
Socket
Quick Connect
-
240VAC
480VAC
-
3 Phase
5W
190VAC
480VAC
UL
66AH6828

RoHS

Each
1+
$223.220
Min: 1 / Mult: 1
Harmony RM17 Series
-
SPDT
5A
DIN Rail
Screw
-
250V
48V
-
1 Phase
3.9VA
20V
80V
-
70AH0684

RoHS

Each
1+
$137.820
Min: 1 / Mult: 1
70 Series
-
DPDT
8A
DIN Rail, Panel
Screw
-
400VAC
480VAC
-
3 Phase
800mW
170VAC
520VAC
-
20J6493

RoHS

Each
1+
$277.260
Min: 1 / Mult: 1
PAP Series
-
SPDT
10A
Socket
Quick Connect
-
277VAC
208VAC
-
3 Phase
40VA
156VAC
198VAC
-
34AC8670

RoHS

Each
1+
$154.970
5+
$141.790
10+
$128.600
25+
$120.210
50+
$114.650
Min: 1 / Mult: 1
202 Series
-
SPDT
10A
Socket
Quick Connect / Screw
-
240VAC
480VAC
-
3 Phase
5W
190VAC
480VAC
IEC, UL
69AC7486

RoHS

Each
1+
$110.320
5+
$100.710
10+
$93.630
25+
$88.060
50+
$83.000
More Pricing...
Min: 1 / Mult: 1
EMD-BL Series
-
SPDT
5A
DIN Rail
Quick Connect
-
250V
480VAC
-
3 Phase
1.5W
187VAC
519VAC
-
66AH6831

RoHS

Each
1+
$188.240
Min: 1 / Mult: 1
Harmony RM22 Series
-
DPDT
8A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
10VA
200VAC
240VAC
-
34AC8681

RoHS

Each
1+
$477.180
5+
$438.680
10+
$400.190
25+
$376.640
Min: 1 / Mult: 1
PumpSaver Series
-
SPST
-
Panel Mount
Screw
-
240VAC
230VAC
-
1 Phase
5W
-
230VAC
UL
40T1796

RoHS

Date/Lot Code

Each
1+
$261.420
5+
$233.440
10+
$216.720
25+
$188.600
50+
$169.530
More Pricing...
Min: 1 / Mult: 1
PMPU-FA8 Series
-
SPDT
10A
-
Quick Connect
-
277VAC
-
-
3 Phase
40VA
156VAC
550VAC
CE, UL
80K7042
Each
1+
$2,495.070
Min: 5 / Mult: 5
D101 Series
-
SPST-NO
5A
Panel Mount
Screw
-
120VAC
120VAC
-
3 Phase
2VA
-
-
CSA, UL
30C3079

RoHS

Date/Lot Code

Each
1+
$122.740
5+
$119.670
10+
$116.610
25+
$110.470
50+
$104.330
More Pricing...
Min: 1 / Mult: 1
PAP Series
-
SPDT
10A
Socket
Quick Connect
-
277VAC
240VAC
-
3 Phase
40VA
180VAC
230VAC
-
76-100 of 134 items
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