BECKHOFF EL9576 ETHERCAT TERMINAL Used
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The Beckhoff EL9576 EtherCAT Terminal brake chopper stabilizes DC links in distributed automation and drive systems by safely dissipating regenerative energy. Designed for compact control cabinets, it prevents DC-bus overvoltage trips and supports reliable machine uptime in servo, robotics and motion applications.
With a nominal voltage up to 72 V and a 155 µF energy buffer, the EL9576 handles up to 10 A ripple current with an internal resistance of < 5 mΩ for low losses. The chopper voltage is adjustable, and the overvoltage control is parameterizable via CoE, enabling precise setpoints. A fast two-point control drives the external braking resistor with a load-dependent clock rate up to 100 µs. Electrical isolation of 1500 V between E-bus and field potential, compact 12 x 100 x 68 mm housing with signal LEDs, spring-cage wiring, and IP20 design make integration straightforward on a 35 mm DIN rail (EN 60715). Recommended braking resistor: 10 Ω, typically 100 W, depending on the application.
Engineered to meet EN 61000-6-2/-6-4 EMC and EN 60068 vibration requirements, this brake chopper is a robust choice for machine builders who need deterministic EtherCAT I/O and dependable DC-bus protection; to further support long-term operation and reduce downtime risk, it comes with a 1-year warranty.
- Brand: Beckhoff
- Series: EtherCAT Terminal
- Model: EL9576
- Function: Brake chopper
- Nominal voltage: up to 72 V
- Max ripple current: 10 A
- Electrical isolation: 1500 V (E-bus/field)
- Connection type: Spring-cage, 8-pin