Simple phase sequence failure and  asymmetry monitoring relay for 3 phase, DIN rail mount, SPDT, TENSE (Made in Turkey)

The FKV-03F is an phase failure and phase sequence monitoring relay with asymmetry monitoring relay manufactured by Tense Electronics. It is designed to protect three-phase motors and loads from electrical damage caused by AC voltage irregularities.

• Phase Sequence / Reverse detection;
• Phase loss detection
  
• Fixed phase asymmetry trip level: 40%
• Automatic reset on fault removal
• 3xLED for relay status monitoring

Applications

It is primarily used to safeguard: 

• Electric Motors: Prevents overheating and burnout from phase imbalances or loss.
• Compressors: Protects against reverse rotation caused by incorrect phase sequence.
• Industrial Machinery: Acts as a general-purpose protection relay for three-phase systems

Technical Specifications

• Monitoring volatage: 3x380V AC 50/60Hz
• Power supply: 220V AC 50/60 Hz
• Output: NO+NC, 5A / 250VAC Resistive Load
• Power consumption: <6VA;
• Operating temperature: -20C...+55C ;
• Mounting: 35mm DIN rail.