6SE6400-4BD21-2DA0 SIEMENS Exclusive Braking Resistor Original Brand New

6SE6400-4BD21-2DA0 SIEMENS Exclusive Braking Resistor Original Brand New

The 6SE6400-4BD21-2DA0 SIEMENS braking resistor is engineered to support efficient energy dissipation within MICROMASTER 4 drive systems. This component plays a crucial role in enhancing braking performance by safely converting regenerative energy into heat, allowing machinery to decelerate rapidly without imposing excessive load on the drive. Its robust electrical configuration, rated for 380–480 V operation and 27 ohms resistance, ensures stable thermal behavior even in demanding industrial settings. The unit delivers a peak power capability of 24,000 W and a continuous rating of 1,200 W, offering a balanced combination of endurance and instantaneous braking strength.

With a compact structure measuring 515 mm in height, 270 mm in width, and 175 mm in depth, the resistor is designed to fit seamlessly into a wide range of installations. Its IP20 protection class makes it suitable for controlled environments where reliable airflow ensures efficient heat dissipation. This allows the resistor to deliver dependable performance across various applications that require controlled deceleration, improved stopping times, and enhanced safety during operational transitions.

The braking resistor can be paired with converters of multiple frame sizes, giving users flexibility across different system configurations. For MICROMASTER units in frame sizes FSA through FSE, the integrated braking chopper enables a direct connection, simplifying installation and reducing system complexity. For configurations in frame categories FSAA to FSAD, the resistor can be utilized with an additional braking module, providing a scalable solution for more advanced setups.

Overview

Braking resistors for frame sizes FSA and FSC are designed to dissipate regenerative energy produced by motor-driven systems. By absorbing this excess energy, the resistor significantly improves braking torque and reduces mechanical stress on equipment. This leads to smoother deceleration, increased operational safety, and improved cycle efficiency.

The resistor supports dynamic braking conditions and is compatible with all converter frame sizes. Integrated braking choppers within specific converter classes allow direct interaction, while others may use optional braking modules to achieve the same level of performance and control. This versatility ensures that a wide range of industrial applications can benefit from enhanced braking capabilities without compromising reliability or thermal stability.

Product Code: 6SE6400-4BD21-2DA0

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