ex VAT

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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ComparePrice ForQuantity
2780443

RoHS

Each
1+
CHF 183.270
Min: 1 / Mult: 1
Zelio RM35UB3
DPDT
5A
DIN Rail
Screw
250V
277VAC
3 Phase
3.9VA
114VAC
329VAC
EN, IEC
2780440

RoHS

Each
1+
CHF 144.200
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
250V
240V
1 Phase
1.5W
15V
500V
EN, IEC
2780442

RoHS

Each
1+
CHF 138.640
Min: 1 / Mult: 1
Zelio RM22UB
DPDT
8A
DIN Rail
Screw
250V
240V
1 Phase
2W
80V
300V
EN, IEC
2780439

RoHS

Each
1+
CHF 146.710
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
250V
240V
1 Phase
1.5W
1V
100V
EN, IEC
2780435

RoHS

Each
1+
CHF 129.620
Min: 1 / Mult: 1
Zelio RM17UB3
SPDT
5A
DIN Rail
Screw
250V
480VAC
3 Phase
22VA
183VAC
528VAC
EN, IEC
2780436

RoHS

Each
1+
CHF 124.740
Min: 1 / Mult: 1
Zelio RM17UBE
SPDT
5A
DIN Rail
Screw
250V
48V
1 Phase
3.9VA
20V
80V
EN, IEC
2780441

RoHS

Each
1+
CHF 150.730
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
250V
415VAC
1 Phase
8VA
15V
500V
EN, IEC
2780438

RoHS

Each
1+
CHF 165.400
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
250V
240V
1 Phase
1.5W
50mV
5V
EN, IEC
2780437

RoHS

Each
1+
CHF 103.600
5+
CHF 101.530
10+
CHF 99.460
Min: 1 / Mult: 1
Zelio RM22TU
DPDT
8A
DIN Rail
Screw
250V
240V
3 Phase
10VA
200VAC
240VAC
EN, IEC
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