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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45AC6247

RoHS

Each
1+
$146.370
5+
$139.130
10+
$134.780
25+
$130.440
Min: 1 / Mult: 1
DPA52 Series
SPDT
5A
DIN Rail
-
480VAC
208VAC
3 Phase
2VA
480VAC
208VAC
CE, CSA, UL
87AK0979
Each
1+
$88.950
10+
$88.950
25+
$88.950
50+
$88.950
100+
$88.950
Min: 1 / Mult: 1
200 Series
SPDT
8A
DIN Rail
Screw
250VAC
575V
3 Phase
2VA
-
575V
-
87AK0978
Each
1+
$74.120
10+
$74.120
25+
$74.120
50+
$74.120
100+
$74.120
Min: 1 / Mult: 1
200 Series
SPDT
8A
DIN Rail
Screw
250VAC
480V
3 Phase
2VA
-
480V
-
87AK0975
Each
1+
$79.070
10+
$79.070
25+
$79.070
50+
$79.070
100+
$79.070
Min: 1 / Mult: 1
200 Series
SPDT
8A
DIN Rail
Screw
250VAC
208VAC
3 Phase
2VA
-
208VAC
-
87AK0976
Each
1+
$122.050
10+
$113.370
25+
$105.940
50+
$102.220
100+
$98.500
Min: 1 / Mult: 1
200 Series
SPDT
8A
DIN Rail
Screw
250VAC
240V
3 Phase
2VA
-
240V
-
45AC6248

RoHS

Each
5+
$189.540
10+
$183.620
25+
$177.700
Min: 5 / Mult: 5
DPB52 Series
SPDT
5A
DIN Rail
-
480VAC
208VAC
3 Phase
2VA
480VAC
208VAC
CE, CSA, 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
87AK0977

RoHS

Each
1+
$0.945
10+
$0.945
25+
$0.945
50+
$0.945
100+
$0.945
Min: 1 / Mult: 1
200 Series
SPDT
8A
DIN Rail
Screw
250VAC
400V
3 Phase
2VA
-
400V
-
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