FIN958.025.M

The Enerdoor FIN958.025.M is a high-frequency differential choke engineered for motor protection applications. It provides excellent attenuation to reduce dV/dt, safeguarding motors from voltage spikes.

This choke features a nominal voltage rating of 600V and a rated current of 25A. It operates within an output frequency range of 0-1000 Hz and has a carrier frequency (PWM) up to 16 kHz. The device offers robust protection with a potential test voltage of 2400 Vdc phase-to-phase and 3200 Vdc phase-to-ground. Its IP20 protection rating ensures suitability for various industrial environments.

Designed for use with motors, the FIN958.025.M is particularly beneficial for high-speed motors, pumps, and woodworking machinery, including spindle motors in closed-loop systems. It offers low power loss up to 1 kHz frequency output and has a climatic class rating of -40°C to +85°C, with an MTBF of 250,000 hours at 40°C. The unit utilizes safety terminal block connectors for secure connections.

Key electrical characteristics include a saturation current of 4 times the rated current (Switch ON) and overload capabilities of 2 times the rated current for 10 seconds, and 1.5 times for 10 minutes. The choke supports solid cable sizes up to 0.2 mm² and stranded cable sizes up to 10 mm², with a terminal torque specification of 1.2 Nm.