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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29M7937

RoHS

Date/Lot Code

Each
1+
$331.140
5+
$322.870
10+
$314.600
25+
$298.050
50+
$281.480
More Pricing...
Min: 1 / Mult: 1
PMD Series
DPDT
10A
DIN Rail
Cage Clamp
277VAC
500VAC
3 Phase
40VA
190VAC
500VAC
CE, CUL
16C3176

RoHS

Each
1+
$177.670
5+
$169.400
10+
$164.440
25+
$159.480
Min: 1 / Mult: 1
DPA01 Series
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
10VA
323VAC
550VAC
-
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
-
34AC8741

RoHS

Date/Lot Code

Each
1+
$418.800
5+
$391.250
10+
$363.680
25+
$343.500
Min: 1 / Mult: 1
-
DPDT
10A
Panel Mount
Screw
240VAC
190VAC
3 Phase
5W
190VAC
480V
CSA, UL
66AH6834

RoHS

Each
1+
$265.840
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
Screw
250VAC
240V
1 Phase
1.5W
15V
500VAC
-
66AH6836

RoHS

Each
1+
$225.980
Min: 1 / Mult: 1
Harmony RM22UB Series
DPDT
8A
DIN Rail
Screw
250VAC
240V
1 Phase
2W
80V
300V
-
55AJ2778

RoHS

Each
1+
$277.300
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
250VAC
240V
3 Phase
10VA
200VAC
240VAC
-
55AJ2777

RoHS

Each
1+
$272.820
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
250VAC
576VAC
3 Phase
15VA
380V
480V
-
09P6672

RoHS

Date/Lot Code

Each
Pricing is unavailable. Please contact customer services.
Harmony RM35UB3 Series
DPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
2.9VA
194V
528V
-
23AH3169

RoHS

Each
1+
$435.640
5+
$421.690
10+
$402.450
25+
$383.170
50+
$333.340
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
18VA
300VAC
500VAC
-
50AJ8750

RoHS

Each
1+
$151.900
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
183VAC
528V
-
11R2673

RoHS

Each
1+
$242.410
10+
$208.630
25+
$200.570
50+
$191.800
100+
$175.940
More Pricing...
Min: 1 / Mult: 1
-
DPDT
-
DIN Rail
Screw
230V
500VAC
3 Phase
-
-
-
-
24W8372

RoHS

Each
1+
$1,154.400
5+
$1,117.410
10+
$1,066.450
25+
$1,015.340
50+
$883.310
Min: 1 / Mult: 1
BD 9080 Series
DPDT
-
DIN Rail
Screw
230V
400VAC
3 Phase
2.4VA
-
-
-
67AH3181

RoHS

Each
1+
$242.190
10+
$229.740
25+
$209.430
Min: 1 / Mult: 1
Harmony RM17 Series
DPDT
5A
DIN Rail
Screw
250VAC
440VAC
3 Phase
22VA
183VAC
484V
-
69AK8666

RoHS

Each
1+
$67.560
100+
$67.560
250+
$67.560
500+
$67.560
1000+
$67.560
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
-
69AK8664

RoHS

Each
1+
$59.610
100+
$59.610
250+
$59.610
500+
$59.610
1000+
$59.610
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
240V
1 Phase, 3 Phase
5W
-
240VAC
-
69AK8663

RoHS

Each
1+
$59.610
100+
$59.610
250+
$59.610
500+
$59.610
1000+
$59.610
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
240V
3 Phase
5W
-
240VAC
-
69AK8657

RoHS

Each
1+
$87.910
100+
$87.910
250+
$87.910
500+
$87.910
1000+
$87.910
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
240VAC
300V
3 Phase
5W
85V
300V
-
69AK8667

RoHS

Each
1+
$67.560
100+
$67.560
250+
$67.560
500+
$67.560
1000+
$67.560
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
-
69AK8665

RoHS

Each
1+
$59.610
100+
$59.610
250+
$59.610
500+
$59.610
1000+
$59.610
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
-
69AK8656

RoHS

Each
1+
$82.000
100+
$82.000
250+
$82.000
500+
$82.000
1000+
$82.000
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
240VAC
500VAC
3 Phase
5W
145VAC
500VAC
-
06X0737

RoHS

Each
1+
$226.230
Min: 1 / Mult: 1
SLA Series
DPDT
10A
-
Plug In
240VAC
-
3 Phase
345VA
190VAC
270V
-
06X0748
Each
1+
$430.560
Min: 1 / Mult: 1
SLA Series
DPDT
3A
Surface Mount
Screw
600VAC
-
3 Phase
360VA
430V
480V
-
66Y0773

RoHS

Each
1+
$544.720
5+
$531.110
10+
$517.490
25+
$490.240
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
Screw
24V
500VAC
3 Phase
-
300VAC
500VAC
CSA, IEC, UL
66Y0750

RoHS

Each
1+
$255.880
10+
$243.090
25+
$230.290
50+
$217.500
100+
$204.700
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
Screw
24V
500VAC
3 Phase
-
200VAC
500VAC
CSA, IEC, UL
1-25 of 51 items
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