BFK455-25 Double-Brake

Industries and products > Products > Double-Brakes > BFK455 Doppel-Federkraftbremse

Twice the safety and performance

The BFK455-25 from INTORQ is a dual spring-applied brake with four friction surfaces and two electrically and mechanically separated brake circuits. The brake circuits can be individually controlled. Separate connecting lines can be used to control the brake circuits individually. The switching state of the two spring-applied brakes is monitored by two individual microswitches. The dual spring-applied brake is designed for one brake alone to provide the necessary braking torque. The second brake is used for redundancy, thus complying with the legal requirements for elevator standards. The BFK455 dual spring-applied brake from INTORQ is a redundant brake system with effective and stable noise reduction. It is ideally suited to elevator and platform applications.

The supply voltage is rectified by the included switching gear, which simultaneously lowers the voltage after a short time in the released state, thus reducing the mean electrical rating of the brake and saving energy. 

Unique characteristics of the INTORQ BFK455:

  • Braking torque up to 2 x 2,065Nm
  • 2 sizes (BG): BG25, BG28
  • Use as holding brake with emergency stop function possible 
  • Stable braking torque on high-temperature contact surfaces
  • Long-term stable noise reduction
  • Flat design
  • Function monitoring of the brake circuits with microswitch
  • Economical control with bridge-half-wave rectifier
  • Type-tested in accordance with EN81-20/50-2014
  • Insulation class F (155°C) 

Optional equipment:

  • Hand-release
  • Cover ring
  • Terminal box

Fields of application

Theatre technology, Elevators and lifts

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