VW3A4552_Schneider_PRODUCT_吉林易择科技技术发展有限公司

The VW3A4552 is a braking unit designed for Schneider Electric Altivar variable frequency drives. It manages regenerative energy by dissipating excess power through an external braking resistor, preventing drive overvoltage during motor deceleration.

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DESCRIBE

Specifications Parameter Specification Model VW3A4552 Type Dynamic Braking Unit Max. Braking Power 20 kW Continuous Current 40 A Compatible Drives Altivar ATV900/600/300 series Activation Voltage Adjustable (typically 760V DC for 400V AC systems) Control IGBT-based chopper circuit Protections Over-temperature, short circuit, overload Terminals For external braking resistor connection Cooling Natural convection Mounting DIN rail or panel mount Operating Temperature 0°C to +50°C Status Indicators Power, fault, operation LEDs Primary Applications: Fast motor deceleration control Handling regenerative loads (cranes, elevators) Centrifuge and test bench braking Winding/unwinding tension control

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