Phase Monitoring Relays:

176 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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47X2116

RoHS

Each
1+
$192.690
Min: 1 / Mult: 1
EWS2 Series
-
DPDT
8A
DIN Rail
Screw
-
250V
484VAC
-
-
28VA
200V
484V
-
34AC8866

RoHS

Each
1+
$529.600
5+
$494.720
10+
$459.830
25+
$434.280
Min: 1 / Mult: 1
350 Series
-
SPDT
15A
Panel Mount
Screw
-
240VAC
480VAC
-
3 Phase
5W
380VAC
480VAC
CSA, UL
66Y0844

RoHS

Each
1+
$735.810
5+
$717.420
10+
$699.020
25+
$662.230
Min: 1 / Mult: 1
CM Series
-
DPDT
4A
DIN Rail
Screw
-
24V
580VAC
-
3 Phase
-
350VAC
580VAC
CSA, IEC, UL
72Y1060

RoHS

Each
1+
$281.760
5+
$263.270
10+
$246.800
25+
$229.230
50+
$217.500
More Pricing...
Min: 1 / Mult: 1
K8AK Series
-
SPDT
5A
DIN Rail
Screw
-
-
240VAC
-
3 Phase
-
-
-
-
66AH6835

RoHS

Each
1+
$283.600
Min: 1 / Mult: 1
Harmony RM22UA Series
-
DPDT
8A
DIN Rail
Screw
-
250V
415VAC
-
1 Phase
8VA
15V
500V
-
34AH3021

RoHS

Each
1+
$617.210
5+
$602.580
10+
$587.960
25+
$558.710
Min: 1 / Mult: 1
CM Series
-
DPDT
4A
DIN Rail
Screwless
-
230VAC
170VAC
-
3 Phase
-
90VAC
170VAC
-
09P6659

RoHS

Each
Pricing is unavailable. Please contact customer services.
Harmony RM17 Series
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
22VA
183VAC
528VAC
-
72Y1061

RoHS

Each
1+
$281.760
5+
$263.270
10+
$246.800
25+
$229.230
50+
$217.500
More Pricing...
Min: 1 / Mult: 1
K8AK Series
-
SPDT
5A
DIN Rail
Screw
-
-
480VAC
-
3 Phase
-
-
-
-
91Y2600

RoHS

Each
1+
$409.440
5+
$381.410
10+
$358.970
25+
$334.660
50+
$315.970
More Pricing...
Min: 1 / Mult: 1
K8DT-PM Series
-
SPDT
-
DIN Rail
Screw
-
-
480VAC
-
3 Phase
2.7VA
-
-
UL
09P6661

RoHS

Each
Pricing is unavailable. Please contact customer services.
Harmony RM17 Series
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
22VA
183VAC
528VAC
-
58T0811

RoHS

Each
1+
$279.810
Min: 1 / Mult: 1
M3US Series
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
1.8VA
-
-
-
16C3179

RoHS

Each
5+
$169.400
10+
$164.440
25+
$159.480
Min: 5 / Mult: 5
DPB01 Series
-
SPDT
8A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
13VA
177VAC
275VAC
-
91Y2601

RoHS

Each
1+
$395.190
5+
$368.110
10+
$346.460
25+
$323.010
50+
$304.960
More Pricing...
Min: 1 / Mult: 1
K8DT-PM Series
-
SPST-NO
-
DIN Rail
Screw
-
-
480VAC
-
3 Phase
2.7VA
-
-
UL
16C3181

RoHS

Each
1+
$454.530
Min: 5 / Mult: 1
DPB02 Series
-
SPDT
8A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
13VA
177VAC
275VAC
-
28C3540
Each
1+
$204.640
Min: 5 / Mult: 5
WRA Series
-
SPDT
10A
Socket
Quick Connect
-
250V
220VAC
-
3 Phase
3VA
-
-
-
01J1748
Each
1+
$2,921.390
Min: 5 / Mult: 5
1800 Series
-
SPST-NO
5A
Panel Mount
Screw
-
120VAC
120VAC
-
3 Phase
-
-
-
CSA, UL
34AC8680

RoHS

Each
1+
$586.270
5+
$547.630
10+
$509.000
25+
$480.720
Min: 1 / Mult: 1
PumpSaver Series
-
SPST
-
Panel Mount
Screw
-
240VAC
230VAC
-
1 Phase
5W
-
230VAC
UL
91Y2599

RoHS

Each
1+
$409.440
5+
$381.410
10+
$358.970
25+
$334.660
50+
$315.970
More Pricing...
Min: 1 / Mult: 1
K8DT-PM Series
-
SPST-NO
5A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
1.7VA
200V
240VAC
UL
91Y2596

RoHS

Each
1+
$168.190
5+
$160.510
10+
$156.670
25+
$140.550
50+
$129.790
More Pricing...
Min: 1 / Mult: 1
K8DT-PH Series
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
2.6VA
200V
480VAC
UL
34AC8867

RoHS

Each
1+
$529.600
5+
$494.720
10+
$459.830
25+
$434.280
Min: 1 / Mult: 1
350 Series
-
SPDT
15A
Panel Mount
Screw
-
240VAC
480VAC
-
3 Phase
5W
380VAC
480VAC
CSA, UL
72Y1058

RoHS

Each
1+
$281.760
5+
$263.270
10+
$246.800
25+
$229.230
50+
$217.500
More Pricing...
Min: 1 / Mult: 1
K8AK Series
-
SPDT
5A
DIN Rail
Screw
-
-
240VAC
-
3 Phase
-
-
-
-
34AC8574

RoHS

Each
1+
$392.910
5+
$367.070
10+
$341.230
25+
$322.290
Min: 1 / Mult: 1
102A Series
-
SPDT
10A
Panel Mount
Screw
-
240VAC
480VAC
-
3 Phase
5W
190VAC
480VAC
CSA, UL
23AH3159

RoHS

Each
1+
$577.260
5+
$558.760
10+
$533.280
25+
$507.720
50+
$441.700
Min: 1 / Mult: 1
EMR6 Series
-
DPDT
4A
DIN Rail
Screw
-
250V
580VAC
-
3 Phase
41VA
350VAC
580VAC
-
27R0590

RoHS

Each
1+
$244.800
10+
$233.070
50+
$230.130
100+
$222.810
Min: 5 / Mult: 5
DPA55 Series
-
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
18VA
177VAC
550VAC
-
86K0447

RoHS

Each
1+
$314.670
Min: 1 / Mult: 1
H3USN Series
-
DPDT
5A
DIN Rail
Screw
-
250V
277VAC
-
3 Phase
3.9VA
-
-
-
126-150 of 176 items
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