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+
$165.410
5+
$157.140
10+
$152.180
25+
$147.220
Min: 1 / Mult: 1
DPA01 Series
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
10VA
323VAC
550VAC
-
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
06AC2593

RoHS

Date/Lot Code

Each
Pricing is unavailable. Please contact customer services.
Zelio 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
250A Series
DPDT
10A
Panel Mount
Screw
240VAC
190VAC
3 Phase
5W
190VAC
480V
CSA, UL
66AH6834

RoHS

Each
1+
$261.730
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
250VAC
240V
1 Phase
1.5W
15V
500VAC
-
66AH6836

RoHS

Each
1+
$225.340
Min: 1 / Mult: 1
Zelio RM22UB
DPDT
8A
DIN Rail
Screw
250VAC
240V
1 Phase
2W
80V
300V
-
55AJ2777

RoHS

Each
1+
$287.300
Min: 1 / Mult: 1
Zelio
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.
-
DPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
2.9VA
194V
528V
-
23AH3169

RoHS

Each
1+
$435.760
5+
$421.600
10+
$402.080
25+
$382.500
50+
$331.950
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
18VA
300VAC
500VAC
-
50AJ8750

RoHS

Each
1+
$177.590
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
183VAC
528V
-
11R2673

RoHS

Each
1+
$238.710
10+
$205.040
25+
$197.010
50+
$188.270
100+
$172.460
More Pricing...
Min: 1 / Mult: 1
MK 9056
DPDT
-
DIN Rail
Screw
230VAC
500VAC
3 Phase
-
-
-
-
24W8372

RoHS

Each
1+
$1,134.010
5+
$1,097.140
10+
$1,046.350
25+
$995.420
50+
$863.830
Min: 1 / Mult: 1
BD 9080
DPDT
-
DIN Rail
Screw
230VAC
400VAC
3 Phase
2.4VA
-
-
-
67AH3181

RoHS

Each
1+
$239.710
10+
$227.260
25+
$209.890
Min: 1 / Mult: 1
Zelio
DPDT
5A
DIN Rail
Screw
250VAC
440VAC
3 Phase
22VA
183VAC
484V
-
69AK8664

RoHS

Each
1+
$60.490
100+
$60.490
250+
$60.490
500+
$60.490
1000+
$60.490
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
240V
1 Phase, 3 Phase
5W
-
240VAC
-
69AK8657

RoHS

Each
1+
$89.220
100+
$89.220
250+
$89.220
500+
$89.220
1000+
$89.220
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
240VAC
300V
3 Phase
5W
85V
300V
-
69AK8663

RoHS

Each
1+
$93.490
100+
$85.700
250+
$85.700
500+
$85.700
1000+
$79.110
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
240V
3 Phase
5W
-
240VAC
-
69AK8666

RoHS

Each
1+
$68.560
100+
$68.560
250+
$68.560
500+
$68.560
1000+
$68.560
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
-
69AK8667

RoHS

Each
1+
$68.560
100+
$68.560
250+
$68.560
500+
$68.560
1000+
$68.560
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
-
69AK8665

RoHS

Each
1+
$60.490
100+
$60.490
250+
$60.490
500+
$60.490
1000+
$60.490
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
-
69AK8656

RoHS

Each
1+
$83.210
100+
$83.210
250+
$83.210
500+
$83.210
1000+
$83.210
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
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
-
DPDT
4A
DIN Rail
Screw
24V
500VAC
3 Phase
-
300VAC
500VAC
CSA, IEC, UL
23AH3161

RoHS

Each
1+
$442.200
5+
$427.830
10+
$408.020
25+
$388.180
50+
$336.860
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
3VA
300VAC
500VAC
-
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