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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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3111268

RoHS

Each
1+
kr 600.990
5+
kr 588.960
10+
kr 576.920
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
183VAC
528VAC
-
2780435

RoHS

Each
1+
kr 1,022.000
Min: 1 / Mult: 1
Zelio RM17UB3
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
22VA
183VAC
528VAC
EN, IEC
2056339

RoHS

Each
1+
kr 460.300
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
22VA
183VAC
528VAC
-
2056340

RoHS

Each
1+
kr 649.700
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
22VA
183VAC
528VAC
-
2056341

RoHS

Each
1+
kr 539.240
5+
kr 505.580
10+
kr 475.830
25+
kr 449.420
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
22VA
183VAC
528VAC
-
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