The LENZE BFK458-25 (400 N.M) 180VDC Spring-Operated Brake is a fail-safe spring-applied brake motor engineered for demanding industrial applications. Delivering 400 N·m holding torque, it combines electromagnetic braking with 180V DC operation, ensuring reliable stopping power for heavy loads in cranes, conveyors, and automated systems. Its robust design meets TÜV-Nord and UL certifications, guaranteeing compliance with global safety standards.

For optimal performance, the Electromagnetic Spring Brake BFK458-25 (400 N.M)  requires proper DC switching via an INTORQ rectifier or equivalent. When switching exceeds 5 operations/minute, a mains filter is recommended to mitigate electrical interference. If using third-party rectifiers, parallel spark suppressors (matched to coil voltage) may be necessary to protect the brake’s AC components, enhancing longevity.

Part of a modular system, the BFK458-25 LENZE PLC Module offers adjustable service/holding brake functions and optional reducible brake modules (Type E). Its IP65-rated housing resists dust and moisture, making it suitable for harsh environments.

With torque options spanning 1.5–720 N·m, the Fail-safe spring applied-brake BFK458-25 (400 N.M) 180VDC balances precision and durability, ideal for applications requiring frequent starts/stops or emergency braking.