Phase Monitoring Relays:

134 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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72Y1059

RoHS

Each
1+
$214.300
5+
$199.810
10+
$193.620
25+
$187.010
50+
$178.340
Min: 1 / Mult: 1
K8AK Series
-
SPDT
5A
DIN Rail
Screw
-
-
480VAC
-
3 Phase
-
-
-
-
66AH6834

RoHS

Each
1+
$205.730
Min: 1 / Mult: 1
Harmony RM22UA Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
240V
-
1 Phase
1.5W
15V
500V
-
34AC8913

RoHS

Date/Lot Code

Each
1+
$188.540
5+
$172.600
10+
$156.670
25+
$146.600
50+
$139.970
Min: 1 / Mult: 1
460 Series
-
SPDT
10A
DIN Rail, Panel
Screw
-
240VAC
600VAC
-
3 Phase
6W
475VAC
600VAC
UL
66AH6836

RoHS

Each
1+
$170.130
Min: 1 / Mult: 1
Harmony RM22UB Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
240V
-
1 Phase
2W
80V
300V
-
05M4096

RoHS

Each
1+
$171.900
5+
$163.980
10+
$159.230
25+
$154.480
Min: 1 / Mult: 1
DPA53 Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
240V
-
3 Phase
7VA
160VAC
240VAC
-
15AJ5694

RoHS

Date/Lot Code

Each
1+
$982.850
5+
$878.210
10+
$766.230
25+
$707.000
50+
$637.370
Min: 1 / Mult: 1
PC1 Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
-
-
3 Phase
3VA
190VAC
600VAC
-
55AJ2777

RoHS

Each
1+
$205.360
Min: 1 / Mult: 1
Harmony RM22 Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
576VAC
-
3 Phase
15VA
380VAC
480VAC
-
43W4762

RoHS

Date/Lot Code

Each
1+
$522.860
5+
$499.390
10+
$485.310
25+
$471.230
Min: 1 / Mult: 1
S142A Series
-
SPDT
8A
Socket
PC Pin
-
250VAC
24VAC
-
-
3.3VA
20.4VAC
27.6VAC
-
55T7542

RoHS

Each
1+
$141.210
10+
$134.580
25+
$127.960
50+
$121.330
100+
$114.710
Min: 1 / Mult: 1
CM-PFE Series
-
SPDT
4A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
15VA
208VAC
440VAC
-
09P6672

RoHS

Date/Lot Code

Each
1+
$282.950
Min: 1 / Mult: 1
Harmony RM35UB3 Series
-
DPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
2.9VA
194V
528V
-
12AH0513
Each
1+
$263.470
5+
$251.640
10+
$244.550
25+
$237.450
Min: 1 / Mult: 1
DPC01 Series
-
2 x SPDT
5A
DIN Rail
Screw
-
24VDC
690VAC
-
3 Phase
-
177VAC
793VAC
-
23AH3169

RoHS

Each
1+
$320.500
5+
$310.330
10+
$296.310
25+
$282.250
50+
$245.950
Min: 1 / Mult: 1
EMR6 Series
-
DPDT
4A
DIN Rail
Screw
-
250VAC
500VAC
-
3 Phase
18VA
300VAC
500V
-
50AJ8750

RoHS

Each
1+
$111.620
Min: 1 / Mult: 1
Harmony RM22 Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
183VAC
528V
-
26AK3439

RoHS

Each
1+
$195.500
Min: 1 / Mult: 1
Harmony RM22 Series
-
DPDT-CO
8A
DIN Rail
Screw
-
250VAC
576VAC
-
3 Phase
4VA
208VAC
480VAC
-
11R2673

RoHS

Each
1+
$183.190
10+
$157.850
25+
$151.810
50+
$145.230
100+
$133.340
More Pricing...
Min: 1 / Mult: 1
-
-
DPDT
-
DIN Rail
Screw
-
230V
500VAC
-
3 Phase
-
-
-
-
66AH6827

RoHS

Each
1+
$157.540
Min: 1 / Mult: 1
Harmony RM17 Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
-
-
-
24W8372

RoHS

Each
1+
$873.790
5+
$846.060
10+
$807.840
25+
$769.530
50+
$670.530
Min: 1 / Mult: 1
BD 9080 Series
-
DPDT
-
DIN Rail
Screw
-
230V
400VAC
-
3 Phase
2.4VA
-
-
-
27R0593
Each
1+
$272.970
5+
$260.720
10+
$253.370
25+
$246.020
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+
$522.860
5+
$499.390
10+
$485.310
25+
$471.230
Min: 1 / Mult: 1
S142A Series
-
SPDT
8A
Socket
PC Pin
-
250VAC
24VAC
-
-
3.3VA
20.4VAC
27.6VAC
-
67AH3181

RoHS

Each
1+
$179.760
Min: 1 / Mult: 1
Harmony RM17 Series
-
DPDT
5A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
22VA
183VAC
484V
-
06AC2593

RoHS

Date/Lot Code

Each
1+
$182.110
Min: 1 / Mult: 1
Harmony RM22 Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
380VAC
480VAC
-
53R1959

RoHS

Each
1+
$115.750
10+
$105.850
25+
$104.450
50+
$101.940
100+
$95.440
More Pricing...
Min: 1 / Mult: 1
-
-
SPST-NC
-
DIN Rail
Screw
-
230V
400VAC
-
3 Phase
-
-
-
-
06X0781
Each
1+
$168.530
Min: 1 / Mult: 1
SLU Series
-
SPDT
10A
Socket
Plug In
-
240VAC
550VAC
-
3 Phase
90VA
200VAC
500V
-
69AK8666

RoHS

Each
1+
$149.570
100+
$126.070
250+
$115.810
500+
$111.100
1000+
$105.550
Min: 1 / Mult: 1
-
-
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
69AK8664

RoHS

Each
1+
$131.980
100+
$111.230
250+
$102.190
500+
$98.040
1000+
$93.140
Min: 1 / Mult: 1
-
-
DPDT
5A
DIN Rail
Screw
-
250VAC
240V
-
1 Phase, 3 Phase
5VA
-
240VAC
-
26-50 of 134 items
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