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Phase Monitoring Relays:

164 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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3440423

RoHS

Each
1+
€120.900
Min: 1 / Mult: 1
K8DS-PA
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
2.8VA
-
-
-
3223355

RoHS

Each
1+
€270.000
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
-
Screwless
230VAC
170VAC
-
3 Phase
-
90VAC
170VAC
-
3215091

RoHS

Each
1+
€106.000
Min: 1 / Mult: 1
Zelio
SPDT
5A
DIN Rail
-
Screw
250VAC
528VAC
-
3 Phase
22VA
208VAC
480VAC
-
2578929

RoHS

Each
1+
€74.000
5+
€72.520
10+
€71.040
Min: 1 / Mult: 1
K8DT-PH
SPDT
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.6VA
200VAC
480VAC
UL
2578932

RoHS

Each
1+
€132.200
Min: 1 / Mult: 1
K8DT-PM
SPST-NO
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2813562
Each
1+
€134.850
Min: 1 / Mult: 1
460
SPDT
10A
DIN Rail
-
Screw
240VAC
480VAC
-
3 Phase
6W
190VAC
480VAC
CE, IEC, UL
2612116

RoHS

Each
1+
€54.870
Min: 1 / Mult: 1
K8AK
DPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
4.1VA
-
-
UL
2507216

RoHS

Each
1+
€165.240
Min: 1 / Mult: 1
K8AK
SPDT
5A
DIN Rail
-
Screw
-
240VAC
-
3 Phase
-
-
-
-
2507213

RoHS

Each
1+
€165.240
Min: 1 / Mult: 1
K8AK
SPDT
5A
DIN Rail
-
Screw
-
240VAC
-
3 Phase
-
-
-
-
2507211

RoHS

Each
1+
€147.600
Min: 1 / Mult: 1
K8AK
SPDT
5A
DIN Rail
-
Screw
-
240VAC
-
3 Phase
-
-
-
-
3111266

RoHS

Each
1+
€152.500
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
-
Screw
250VAC
288VAC
-
3 Phase
10VA
200VAC
240VAC
-
3214135

RoHS

Each
1+
€323.000
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
-
Screw
250VAC
580VAC
-
3 Phase
41VA
350VAC
580VAC
-
2578934

RoHS

Each
1+
€162.300
Min: 1 / Mult: 1
K8DT-PZ
SPST-NO
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2578933

RoHS

Each
1+
€163.900
Min: 1 / Mult: 1
K8DT-PZ
SPDT
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2578930

RoHS

Each
1+
€74.000
5+
€72.520
10+
€71.040
Min: 1 / Mult: 1
K8DT-PH
SPST-NO
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.6VA
-
-
UL
2915307

RoHS

Each
1+
€88.860
5+
€87.080
10+
€85.310
Min: 1 / Mult: 1
EMD
SPDT
5A
DIN Rail
-
Quick Connect
250VAC
480VAC
-
3 Phase
1.5W
187VAC
519VAC
CE, EAC, UL
3223353

RoHS

Each
1+
€260.000
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
3440427

RoHS

Each
1+
€167.800
Min: 1 / Mult: 1
K8DS-PZ
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
2.8VA
-
-
-
3223348

RoHS

Each
1+
€234.050
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
1390498

RoHS

Each
1+
€198.000
Min: 1 / Mult: 1
3UG
DPDT
3A
DIN Rail
-
Screw
400VAC
690VAC
-
3 Phase
2W
160VAC
690VAC
-
3487977

RoHS

Each
1+
€308.000
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2811533

RoHS

Each
1+
€61.630
5+
€59.720
10+
€57.810
20+
€56.650
Min: 1 / Mult: 1
SM500 Series
DPDT
5A
DIN Rail
250V
Screw
250VAC
415VAC
28V
3 Phase
10VA
-
415VAC
CE
2056345

RoHS

Each
1+
€90.120
5+
€82.900
10+
€76.290
25+
€70.190
Min: 1 / Mult: 1
Zelio Control
SPDT
5A
DIN Rail
-
Screw
250VAC
277VAC
-
-
6W
-
277VAC
-
2064124

RoHS

Each
1+
€33.800
2+
€32.060
5+
€27.030
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
-
3484535

RoHS

Each
1+
€288.000
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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