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Phase Monitoring Relays:

146 Products Found

Farnell 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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2811533

RoHS

Each
1+
€61.630
5+
€59.720
10+
€57.810
20+
€56.650
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
250V
Screw
250VAC
415VAC
28V
3 Phase
10VA
-
415VAC
CE
2064124

RoHS

Each
1+
€34.980
5+
€33.800
10+
€33.120
30+
€32.460
90+
€31.810
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
3484527

RoHS

Each
1+
€174.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484535

RoHS

Each
1+
€288.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4247877

RoHS

Each
1+
€335.700
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Push In
250VAC
820VAC
-
3 Phase
59VA
530VAC
820VAC
-
4244638

RoHS

Each
1+
€76.710
5+
€75.180
10+
€73.640
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
-
Push In
400VAC
415VAC
-
3 Phase
1W
208VAC
480VAC
-
4312770

RoHS

Each
1+
€137.620
Min: 1 / Mult: 1
DPB52 Series
SPDT
5A
DIN Rail
-
-
480VAC
208VAC
-
3 Phase
2VA
480VAC
208VAC
-
4713109

RoHS

Each
1+
€297.250
Min: 1 / Mult: 1
DPC01 Series
2 x SPDT
5A
DIN Rail
-
Screw
24VDC
690VAC
-
3 Phase
7VA
510VAC
793VAC
-
4713017

RoHS

Each
1+
€199.510
Min: 1 / Mult: 1
DPA55 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
18VA
177VAC
550VAC
-
4312771

RoHS

Each
1+
€212.330
Min: 1 / Mult: 1
DWA01 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4713135

RoHS

Each
1+
€156.040
Min: 1 / Mult: 1
PPA01 Series
2 x DPDT
3A
Socket
-
Plug In
250VAC
415VAC
-
3 Phase
10VA
323V
477V
-
4312772

RoHS

Each
1+
€172.950
Min: 1 / Mult: 1
DUA55 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4713133

RoHS

Each
1+
€323.480
Min: 1 / Mult: 1
DPC02 Series
2 x SPDT
5A
DIN Rail
-
Screw
24VDC
690VAC
-
3 Phase
7VA
177VAC
793VAC
-
4312768

RoHS

Each
1+
€288.280
Min: 1 / Mult: 1
DPC01 Series
2 x SPDT
5A
DIN Rail
-
Screw
24VDC
690VAC
-
3 Phase
-
177VAC
793VAC
-
2987237

RoHS

OMRON INDUSTRIAL AUTOMATION
Each
1+
€70.510
5+
€68.760
10+
€66.980
25+
€63.460
50+
€59.940
Min: 1 / Mult: 1
K8AK-PH Series
DPDT-NC
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
4.1VA
200VAC
480VAC
-
3484526

RoHS

Each
1+
€150.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
SPDT
60A
DIN Rail, Panel
-
Screw
690VAC
690VAC
-
3 Phase
5.8W
-
-
-
3487981

RoHS

Each
1+
€347.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484528

RoHS

Each
1+
€156.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484532

RoHS

Each
1+
€223.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484514

RoHS

Each
1+
€135.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3487979

RoHS

Each
1+
€331.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3487980

RoHS

Each
1+
€343.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484529

RoHS

Each
1+
€183.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484530

RoHS

Each
1+
€207.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484534

RoHS

Each
1+
€238.000
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
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