Phase Monitoring Relays:

11 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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ComparePrice forQuantity
34AC8572

RoHS

Date/Lot Code

Each
1+
$288.300
5+
$269.340
10+
$250.380
25+
$236.490
Min: 1 / Mult: 1
102A Series
SPDT
10A
Panel Mount
Screw
240VAC
480VAC
3 Phase
5W
190VAC
480VAC
CSA, UL
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
480VAC
CSA, UL
34AC8897

RoHS

Date/Lot Code

Each
1+
$262.380
5+
$262.380
10+
$262.380
25+
$262.380
Min: 1 / Mult: 1
455 Series
SPDT
10A
Panel Mount
Screw
240VAC
480VAC
3 Phase
6W
190VAC
480VAC
CSA, UL
34AC3146

RoHS

Each
1+
$291.850
5+
$272.660
10+
$253.460
25+
$239.390
Min: 1 / Mult: 1
HLMU Series
DPDT
10A
Panel Mount
Screw
240VAC
480VAC
3 Phase
-
200VAC
480VAC
UL
34AC8681

RoHS

Each
1+
$532.650
5+
$497.510
10+
$462.370
Min: 1 / Mult: 1
PumpSaver Series
SPST
-
Panel Mount
Screw
240VAC
230VAC
1 Phase
5W
-
230VAC
UL
80K7042
Each
1+
$2,246.190
Min: 5 / Mult: 5
D101X Series
SPST-NO
5A
Panel Mount
Screw
120VAC
120VAC
3 Phase
2VA
-
-
CSA, UL
34AC8866

RoHS

Each
1+
$407.100
5+
$380.290
10+
$353.470
25+
$333.830
Min: 1 / Mult: 1
350 Series
SPDT
15A
Panel Mount
Screw
240VAC
480VAC
3 Phase
5W
380VAC
480VAC
CSA, UL
34AC8680

RoHS

Each
1+
$450.660
5+
$420.960
10+
$391.260
25+
$369.530
Min: 1 / Mult: 1
PumpSaver Series
SPST
-
Panel Mount
Screw
240VAC
230VAC
1 Phase
5W
-
230VAC
UL
01J1748
Each
1+
$1,891.280
Min: 5 / Mult: 5
WILMAR 1800 Series
SPST-NO
5A
Panel Mount
Screw
120VAC
120VAC
3 Phase
-
-
-
CSA, UL
34AC8867

RoHS

Each
1+
$407.100
5+
$380.290
10+
$353.470
25+
$333.830
Min: 1 / Mult: 1
350 Series
SPDT
15A
Panel Mount
Screw
240VAC
480VAC
3 Phase
5W
380VAC
480VAC
CSA, UL
34AC8574

RoHS

Each
1+
$302.030
5+
$282.170
10+
$262.300
25+
$247.750
Min: 1 / Mult: 1
102A Series
SPDT
10A
Panel Mount
Screw
240VAC
480VAC
3 Phase
5W
190VAC
480VAC
CSA, UL
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