A three-phase monitoring/protection relay monitors phases/asymmetry/voltage faults.

In stock - 42 items available
SKU: FKM-05F
Common price €30,36 incl. VAT
Sled phase

Three-phase monitoring and protection relay for sequence monitoring, tripping, phase unbalance, overvoltage, undervoltage and neutral tripping, with timer. Protective monitoring relay FKM-05/05F (TENSE)

Phase protection relays are designed to protect three-phase loads from damage caused by mains voltage.

  • Overvoltage: 300 V (fixed).
  • Undervoltage: 140 V (fixed).
  • Asymmetry: 5-25% (adjustable).
  • Timer: 0.1 s - 20 s (adjustable).

  • Phase failure protection

  • Zero phase fault protection

  • Phase sequence control (FKM-05F)
  • DIN rail mounting

  • Width 35.6mm


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The electronic devices we supply meet high quality standards, have a 24-month warranty, and meet all EU requirements.

In the event of a complaint, there is no charge for returning the product.