Phase Monitoring Relays:

171 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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84X8729

RoHS

Date/Lot Code

Each
1+
$362.090
5+
$338.370
10+
$319.400
25+
$298.840
50+
$283.020
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+
$263.730
5+
$246.420
10+
$229.100
25+
$216.430
50+
$207.230
Min: 1 / Mult: 1
460 Series
-
SPDT
10A
DIN Rail, Panel
Screw
-
240VAC
600VAC
-
3 Phase
6W
475VAC
600VAC
UL
23AH3162

RoHS

Each
1+
$354.830
5+
$343.290
10+
$327.390
25+
$311.460
50+
$270.290
Min: 1 / Mult: 1
EMR6
-
DPDT
4A
DIN Rail
Screw
-
500V
500VAC
-
3 Phase
15VA
300VAC
500VAC
-
66AH6836

RoHS

Each
1+
$207.390
Min: 1 / Mult: 1
Zelio RM22UB
-
DPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
1 Phase
2W
80V
300V
-
55AJ2778

RoHS

Each
1+
$326.830
Min: 1 / Mult: 1
Zelio
-
DPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
10VA
200VAC
240VAC
-
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
240VAC
-
3 Phase
7VA
160VAC
240VAC
-
41Y4153

RoHS

Each
1+
$419.620
5+
$392.140
10+
$370.150
25+
$346.320
50+
$328.000
More Pricing...
Min: 1 / Mult: 1
K8AK Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
24V
-
1 Phase
-
-
-
-
55AJ2777

RoHS

Each
1+
$281.020
Min: 1 / Mult: 1
Zelio
-
DPDT
8A
DIN Rail
Screw
-
250VAC
576VAC
-
3 Phase
15VA
380VAC
480VAC
-
15AJ5694

RoHS

Date/Lot Code

Each
1+
$1,276.790
5+
$1,140.850
10+
$995.380
25+
$918.430
50+
$827.990
Min: 1 / Mult: 1
PC1 Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
-
-
3 Phase
3VA
190VAC
600VAC
-
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
-
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+
$162.410
10+
$154.290
25+
$146.180
50+
$138.040
100+
$129.930
Min: 1 / Mult: 1
CM-PFE
-
SPDT
4A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
15VA
208VAC
440VAC
-
23AH3169

RoHS

Each
1+
$405.580
5+
$391.730
10+
$372.640
25+
$353.490
50+
$304.040
Min: 1 / Mult: 1
EMR6
-
DPDT
4A
DIN Rail
Screw
-
250VAC
500VAC
-
3 Phase
18VA
300VAC
500VAC
-
50AJ8750

RoHS

Each
1+
$171.660
Min: 1 / Mult: 1
Zelio
-
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
183VAC
528V
-
26AK3439

RoHS

Each
1+
$225.310
Min: 1 / Mult: 1
-
-
DPDT-CO
8A
DIN Rail
Screw
-
250VAC
576VAC
-
3 Phase
4VA
208VAC
480VAC
-
11R2673

RoHS

Each
1+
$227.950
10+
$194.450
25+
$186.460
50+
$177.760
100+
$162.050
More Pricing...
Min: 1 / Mult: 1
MK 9056
-
DPDT
-
DIN Rail
Screw
-
230VAC
500VAC
-
3 Phase
-
-
-
-
66AH6827

RoHS

Each
1+
$202.040
10+
$191.940
25+
$174.740
50+
$155.880
100+
$145.790
Min: 1 / Mult: 1
Zelio
-
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
-
-
-
24W8372

RoHS

Each
1+
$1,073.500
5+
$1,036.830
10+
$986.310
25+
$935.640
50+
$804.730
Min: 1 / Mult: 1
BD 9080
-
DPDT
-
DIN Rail
Screw
-
230VAC
400VAC
-
3 Phase
2.4VA
-
-
-
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+
$239.520
10+
$227.080
25+
$205.300
Min: 1 / Mult: 1
Zelio
-
DPDT
5A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
22VA
183VAC
484V
-
06M3827

RoHS

Each
1+
$262.710
5+
$249.580
10+
$241.700
25+
$233.820
Min: 1 / Mult: 1
DPB01 Series
-
SPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
13VA
323VAC
550VAC
-
38Y7644

RoHS

Date/Lot Code

Each
1+
$151.760
5+
$148.320
10+
$144.870
25+
$137.990
50+
$131.090
More Pricing...
Min: 1 / Mult: 1
K8AK-PH Series
-
DPDT-NC
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
4.1VA
200VAC
480VAC
-
06X0781
Each
1+
$211.660
Min: 1 / Mult: 1
-
-
SPDT
10A
-
Plug In
-
240VAC
550VAC
-
3 Phase
90VA
200VAC
500VAC
-
85AK6218

RoHS

Each
1+
$324.880
Min: 1 / Mult: 1
PPB01 Series
-
SPDT
8A
Socket
Plug In
-
250VAC
-
-
3 Phase
2.5VA
380VAC
480VAC
-
69AK8663

RoHS

Each
1+
$91.440
100+
$83.830
250+
$83.820
500+
$83.820
1000+
$83.820
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
-
DPDT
5A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
5VA
-
240VAC
-
26-50 of 171 items
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