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.
Show More
View
Buyer
Engineer
Manufacturer
Product Range
Contact Configuration
Contact Current
Relay Mounting
Relay Terminals
Switching Voltage Max
Supply Voltage Max
Phase Type
Power Consumption
Phase Monitoring Range Min
Phase Monitoring Range Max
Approvals & Standards
Packaging
Filter(s) Applied
1 Filter(s) Selected
ComparePrice forQuantity
29M7937

RoHS

Date/Lot Code

Each
1+
$254.910
5+
$248.540
10+
$242.180
25+
$229.430
50+
$216.680
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+
$127.330
5+
$120.970
10+
$117.150
25+
$113.330
Min: 1 / Mult: 1
DPA01 Series
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
10VA
323VAC
550VAC
-
66Y0750

RoHS

Each
1+
$196.970
10+
$187.130
25+
$177.270
50+
$167.430
100+
$157.570
Min: 1 / Mult: 1
-
DPDT
4A
DIN Rail
Screw
24V
500VAC
3 Phase
-
200VAC
500VAC
CSA, IEC, UL
06AC2593

RoHS

Date/Lot Code

Each
1+
$182.110
Min: 1 / Mult: 1
Zelio Series
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
380V
480V
-
34AC8741

RoHS

Date/Lot Code

Each
1+
$322.380
5+
$301.180
10+
$279.960
25+
$264.420
Min: 1 / Mult: 1
250A Series
DPDT
10A
Panel Mount
Screw
240VAC
190VAC
3 Phase
5W
190VAC
480V
CSA, UL
66AH6834

RoHS

Each
1+
$211.010
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
250VAC
240V
1 Phase
1.5W
15V
500VAC
-
66AH6836

RoHS

Each
1+
$176.650
Min: 1 / Mult: 1
Zelio RM22UB
DPDT
8A
DIN Rail
Screw
250VAC
240V
1 Phase
2W
80V
300V
-
55AJ2778

RoHS

Each
1+
$267.390
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
240V
3 Phase
10VA
200VAC
240VAC
-
55AJ2777

RoHS

Each
1+
$219.960
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
576VAC
3 Phase
15VA
380V
480V
-
09P6672

RoHS

Date/Lot Code

Each
1+
$284.520
5+
$277.400
10+
$270.290
25+
$256.070
50+
$241.830
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
2.9VA
194V
528V
-
23AH3169

RoHS

Each
1+
$318.940
5+
$308.810
10+
$294.860
25+
$280.880
50+
$244.750
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
18VA
300VAC
500VAC
-
50AJ8750

RoHS

Each
1+
$138.180
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
183VAC
528V
-
11R2673

RoHS

Each
1+
$184.350
10+
$158.860
25+
$152.780
50+
$146.160
100+
$134.190
More Pricing...
Min: 1 / Mult: 1
MK 9056
DPDT
-
DIN Rail
Screw
230VAC
500VAC
3 Phase
-
-
-
-
24W8372

RoHS

Each
1+
$879.350
5+
$851.450
10+
$812.990
25+
$774.430
50+
$674.810
Min: 1 / Mult: 1
BD 9080
DPDT
-
DIN Rail
Screw
230VAC
400VAC
3 Phase
2.4VA
-
-
-
67AH3181

RoHS

Each
1+
$190.170
10+
$180.600
25+
$164.990
Min: 1 / Mult: 1
Zelio
DPDT
5A
DIN Rail
Screw
250VAC
440VAC
3 Phase
22VA
183VAC
484V
-
69AK8663

RoHS

Each
1+
$69.590
100+
$63.790
250+
$63.790
500+
$63.790
1000+
$58.880
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
240V
3 Phase
5W
-
240VAC
-
69AK8664

RoHS

Each
1+
$45.030
100+
$45.030
250+
$45.030
500+
$45.030
1000+
$45.030
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
240V
1 Phase, 3 Phase
5W
-
240VAC
-
69AK8666

RoHS

Each
1+
$51.040
100+
$51.040
250+
$51.040
500+
$51.040
1000+
$51.040
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
-
69AK8657

RoHS

Each
1+
$66.410
100+
$66.410
250+
$66.410
500+
$66.410
1000+
$66.410
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
240VAC
300V
3 Phase
5W
85V
300V
-
69AK8667

RoHS

Each
1+
$51.040
100+
$51.040
250+
$51.040
500+
$51.040
1000+
$51.040
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
-
69AK8665

RoHS

Each
1+
$45.030
100+
$45.030
250+
$45.030
500+
$45.030
1000+
$45.030
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
250VAC
415VAC
3 Phase
10VA
-
415VAC
-
69AK8656

RoHS

Each
1+
$61.940
100+
$61.940
250+
$61.940
500+
$61.940
1000+
$61.940
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
240VAC
500VAC
3 Phase
5W
145VAC
500VAC
-
66Y0773

RoHS

Each
1+
$419.320
5+
$408.840
10+
$398.350
25+
$377.380
Min: 1 / Mult: 1
-
DPDT
4A
DIN Rail
Screw
24V
500VAC
3 Phase
-
300VAC
500VAC
CSA, IEC, UL
23AH3161

RoHS

Each
1+
$323.650
5+
$313.380
10+
$299.230
25+
$285.040
50+
$248.380
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
250VAC
500VAC
3 Phase
3VA
300VAC
500VAC
-
34AH3014

RoHS

Each
1+
$403.820
5+
$394.310
10+
$384.810
25+
$365.800
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
230VAC
500VAC
3 Phase
-
300VAC
500VAC
-
1-25 of 44 items
of 2 page(s)

Popular Suppliers

EATON
SCHNEIDER ELECTRIC
HONEYWELL
WAGO
IDEC
OMRON
BELDEN
ABB