ZIEHL-ABEGG BC50-680V BRAKE-CHOPPER (137306 - )

Description:

The Ziehl-Abegg BC50-680V (Part No. 137306) is an industrial brake chopper designed for use in drive and inverter systems to safely dissipate excess regenerative energy. During motor deceleration, energy is fed back into the DC bus; this unit redirects that energy into an external braking resistor to prevent overvoltage conditions. It is engineered for high-voltage systems up to 680V and provides reliable protection for motors, drives, and associated control equipment.

Applications:

The Ziehl-Abegg BC50-680V brake chopper is used in variable frequency drives (VFDs), industrial motor control systems, elevator drives, and automation equipment. It is commonly installed in applications requiring controlled braking, rapid deceleration, and protection of DC bus circuits from voltage spikes.

Technical Specifications:

• Manufacturer Part Number (MPN): BC50-680V / 137306
• Product Type: Brake Chopper
• Voltage Rating: Up to 680V DC
• Current Rating: ~50A (model designation “BC50”)
• Function: Dissipates regenerative braking energy via external resistor
• Application: Motor drives, VFDs, inverter systems
• Construction: Industrial-grade module for panel integration
• Weight: ~17 lbs (approx.)
• Origin: Germany

Common Replacements:

• Ziehl-Abegg BC50-635V brake chopper
• Allen-Bradley 1336 series braking chopper
• Siemens braking modules (VFD-compatible)