Phase Monitoring Relays:

169 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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66AH6834

RoHS

Each
1+
$274.900
Min: 1 / Mult: 1
Zelio RM22UA
-
DPDT
8A
DIN Rail
Screw
-
250VAC
240V
-
1 Phase
1.5W
15V
500V
-
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
-
34AC8913

RoHS

Date/Lot Code

Each
1+
$242.280
5+
$221.810
10+
$201.330
25+
$188.390
50+
$179.870
Min: 1 / Mult: 1
460 Series
-
SPDT
10A
DIN Rail, Panel
Screw
-
240VAC
600VAC
-
3 Phase
6W
475VAC
600VAC
UL
66AH6836

RoHS

Each
1+
$233.840
Min: 1 / Mult: 1
Zelio RM22UB
-
DPDT
8A
DIN Rail
Screw
-
250VAC
240V
-
1 Phase
2W
80V
300V
-
05M4096

RoHS

Each
1+
$206.850
5+
$196.560
10+
$190.390
25+
$184.220
Min: 1 / Mult: 1
DPA53 Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
240V
-
3 Phase
7VA
160VAC
240VAC
-
41Y4153

RoHS

Each
1+
$440.920
5+
$412.050
10+
$388.940
25+
$363.910
50+
$344.650
More Pricing...
Min: 1 / Mult: 1
K8AK Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
24V
-
1 Phase
-
-
-
-
55AJ2777

RoHS

Each
1+
$291.180
Min: 1 / Mult: 1
Zelio
-
DPDT
8A
DIN Rail
Screw
-
250VAC
576VAC
-
3 Phase
15VA
380VAC
480VAC
-
15AJ5694

RoHS

Date/Lot Code

Each
1+
$527.990
5+
$527.990
10+
$527.990
25+
$527.990
50+
$527.990
Min: 1 / Mult: 1
PC1 Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
-
-
3 Phase
3VA
190VAC
600VAC
-
43W4762

RoHS

Date/Lot Code

Each
1+
$621.330
5+
$590.270
10+
$571.630
25+
$552.990
Min: 1 / Mult: 1
S142A Series
-
SPDT
8A
Socket
PC Pin
-
250VAC
24V
-
-
3.3VA
20.4VAC
27.6VAC
-
55T7542

RoHS

Each
1+
$187.110
10+
$178.340
25+
$169.570
50+
$160.800
100+
$152.030
Min: 1 / Mult: 1
CM-PFE
-
SPDT
4A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
15VA
208VAC
440VAC
-
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
-
12AH0513
Each
1+
$307.670
5+
$292.290
10+
$283.060
25+
$273.830
Min: 1 / Mult: 1
DPC01 Series
-
2 x SPDT
5A
DIN Rail
Screw
-
24VDC
690VAC
-
3 Phase
-
177VAC
793VAC
-
23AH3169

RoHS

Each
1+
$439.800
5+
$425.840
10+
$406.610
25+
$387.330
50+
$337.500
Min: 1 / Mult: 1
EMR6
-
DPDT
4A
DIN Rail
Screw
-
250VAC
500VAC
-
3 Phase
18VA
300VAC
500V
-
50AJ8750

RoHS

Each
1+
$182.930
Min: 1 / Mult: 1
Zelio
-
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
183VAC
528V
-
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
-
11R2673

RoHS

Each
1+
$244.050
10+
$210.300
25+
$202.250
50+
$193.490
100+
$177.650
More Pricing...
Min: 1 / Mult: 1
MK 9056
-
DPDT
-
DIN Rail
Screw
-
230VAC
500VAC
-
3 Phase
-
-
-
-
66AH6827

RoHS

Each
1+
$216.690
10+
$206.590
25+
$190.700
50+
$171.700
100+
$161.520
Min: 1 / Mult: 1
Zelio
-
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
-
-
-
24W8372

RoHS

Each
1+
$1,164.090
5+
$1,127.160
10+
$1,076.240
25+
$1,025.200
50+
$893.320
Min: 1 / Mult: 1
BD 9080
-
DPDT
-
DIN Rail
Screw
-
230VAC
400VAC
-
3 Phase
2.4VA
-
-
-
27R0593
Each
1+
$318.310
5+
$302.400
10+
$292.850
25+
$283.300
Min: 1 / Mult: 1
DPC01 Series
-
2 x SPDT
5A
DIN Rail
Screw
-
24VDC
480VAC
-
3 Phase
-
374VAC
552VAC
-
27R1423

RoHS

Date/Lot Code

Each
1+
$416.660
5+
$416.660
10+
$416.660
25+
$416.660
Min: 1 / Mult: 1
S142A Series
-
SPDT
8A
Socket
PC Pin
-
250VAC
24V
-
-
3.3VA
20.4VAC
27.6VAC
-
67AH3181

RoHS

Each
1+
$247.400
10+
$234.950
25+
$214.640
Min: 1 / Mult: 1
Zelio
-
DPDT
5A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
22VA
183VAC
484V
-
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
-
53R1959

RoHS

Each
1+
$154.200
10+
$141.020
25+
$139.140
50+
$135.790
100+
$127.150
More Pricing...
Min: 1 / Mult: 1
IK 9179
-
SPST-NC
-
DIN Rail
Screw
-
230VAC
400VAC
-
3 Phase
-
-
-
-
06X0781
Each
1+
$218.930
Min: 1 / Mult: 1
-
-
SPDT
10A
-
Plug In
-
240VAC
550VAC
-
3 Phase
90VA
200VAC
500V
-
69AK8663

RoHS

Each
1+
$92.130
100+
$84.450
250+
$84.450
500+
$84.450
1000+
$77.950
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
-
DPDT
5A
DIN Rail
Screw
-
250VAC
240V
-
3 Phase
5VA
-
240VAC
-
26-50 of 169 items
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