Schneider Altivar VW3A7101 Resistance Braking Units

Description

The Schneider Electric VW3A7101 is a resistance braking unit designed for variable speed drives, capable of handling a capacity of 200 kW at 400 V. Engineered to dissipate regenerative energy generated by motor deceleration, this unit protects variable frequency drives from overvoltage faults and ensures smooth, controlled stopping in demanding industrial applications. Built with physical dimensions of 100.3 x 19 x 40 cm and a substantial weight of 48.00 kg, it provides robust and reliable thermal performance within heavy-duty drive systems.

Features

• Resistance braking unit designed for variable speed drives and frequency converters
• Handles a capacity of up to 200 kW at an operational voltage of 400 V
• Dissipates regenerative motor energy to prevent drive overvoltage trips
• Robust industrial construction designed for high-load operational environments
• Active product lifecycle status within the Schneider Electric Altivar range

Applications

• Cranes, hoists, and lifting equipment with high regenerative loads
• Large industrial centrifuges and high-inertia machinery
• Conveyors and material handling systems requiring rapid deceleration
• Test benches and heavy-duty motor drive setups

Technical Specifications

Installation Guidelines

• Ensure all power sources and variable speed drives are completely de-energized and locked out before installation.
• Mount the braking unit securely on a vertical, load-bearing surface capable of supporting its 48.00 kg weight.
• Maintain adequate clearance around the unit to ensure proper heat dissipation and ventilation during operation.
• Connect the DC bus and braking resistor terminals strictly in accordance with the variable frequency drive wiring manual.
• Verify all electrical connections and thermal protection wiring prior to initial system power-up.