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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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2780440

RoHS

Each
1+
€150.500
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
1 Phase
1.5W
15V
500V
EN, IEC
2612120

RoHS

Each
1+
€48.170
Min: 1 / Mult: 1
K8DS-PH
SPDT
5A
DIN Rail
-
Screw
1.25kV
250VAC
-
3 Phase
150W
-
-
UL
3214136

RoHS

Each
1+
€259.000
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
-
Screw
250VAC
280VAC
-
3 Phase
3VA
180VAC
280VAC
-
3111270

RoHS

Each
1+
€116.000
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
15VA
380VAC
480VAC
-
1895999

RoHS

Each
1+
€95.500
5+
€93.590
10+
€91.680
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
-
Screw
300VAC
460VAC
-
3 Phase
-
185VAC
460VAC
UL
1895997

RoHS

Each
1+
€62.550
5+
€61.300
10+
€60.050
Min: 1 / Mult: 1
-
SPST-NO
4A
DIN Rail
-
Screw
250VAC
130VAC
-
1 Phase
-
110VAC
130VAC
UL
2507217

RoHS

Each
1+
€165.240
Min: 1 / Mult: 1
K8AK
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
2780439

RoHS

Each
1+
€150.500
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
1 Phase
1.5W
1V
100V
EN, IEC
2813563
Each
1+
€118.940
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
-
Screw
240VAC
480VAC
-
3 Phase
6W
190VAC
480VAC
CE, IEC, UL
2780435

RoHS

Each
1+
€136.500
Min: 1 / Mult: 1
Zelio RM17UB3
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
22VA
183VAC
528VAC
EN, IEC
2780436

RoHS

Each
1+
€133.650
Min: 1 / Mult: 1
Zelio RM17UBE
SPDT
5A
DIN Rail
-
Screw
250VAC
48V
-
1 Phase
3.9VA
20V
80V
EN, IEC
2612117

RoHS

Each
1+
€110.000
Min: 1 / Mult: 1
K8AK-PM
SPDT
5A
DIN Rail
-
Screw
1.25kV
480VAC
-
3 Phase
4.4VA
220VAC
480VAC
UL
3223356

RoHS

Each
1+
€256.000
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500V
-
9515020

RoHS

Each
1+
€101.540
5+
€86.090
10+
€84.370
Min: 1 / Mult: 1
IK 9169
SPST-NC
-
DIN Rail
-
Screw
-
415VAC
-
3 Phase
-
-
-
-
2102323

RoHS

Each
1+
€341.100
Min: 1 / Mult: 1
CM-MPN
DPDT
5A
DIN Rail
-
Screw
300VAC
580VAC
-
3 Phase
41VA
350VAC
580VAC
UL
2780438

RoHS

Each
1+
€177.210
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
1 Phase
1.5W
50mV
5V
EN, IEC
2780441

RoHS

Each
1+
€162.480
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
-
Screw
250VAC
415VAC
-
1 Phase
8VA
15V
500V
EN, IEC
3223357

RoHS

Each
1+
€263.120
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
-
Screwless
230VAC
280VAC
-
3 Phase
-
180VAC
280VAC
-
2102318

RoHS

Each
1+
€254.000
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Spring Clamp
300VAC
500VAC
-
3 Phase
18VA
300VAC
500V
UL
3223349

RoHS

Each
1+
€130.000
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
200VAC
500V
-
3214137

RoHS

Each
1+
€198.000
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
-
Screw
250VAC
400VAC
-
3 Phase
18VA
360VAC
440VAC
-
2578931

RoHS

Each
1+
€131.000
Min: 1 / Mult: 1
K8DT-PM
SPDT
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2780437

RoHS

Each
1+
€111.000
5+
€108.780
10+
€106.560
Min: 1 / Mult: 1
Zelio RM22TU
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
3 Phase
10VA
200VAC
240VAC
EN, IEC
3215092

RoHS

Each
1+
€212.000
Min: 1 / Mult: 1
Zelio
SPDT
5A
DIN Rail
-
Screw
250VAC
528VAC
-
3 Phase
5VA
208VAC
480VAC
-
2915306

RoHS

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