KDV 3.1-100-220/300-220 Bosch Rexroth Indramat
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MPN: R911233276
The Bosch Rexroth Indramat KDV 3.1-100-220/300-220 belongs to the KDV Supply Modules series and has a nominal input voltage of 3 x 220 VAC. It provides a 24 V output continuous current of 11.5 Amps and a type current of 100 Amps. The module features a peak current of 160 Amps and weighs 21 kilograms.
Internal Product Review
The KDV 3.1-100-220/300-220 is a Bosch Rexroth Indramat supply module built for dependable drive power conversion, with a nominal input voltage of 3 x 220 VAC and a type current of 100 A. Strong dynamic performance comes from 48 kW feed-in peak power and 160 A peak current for short-duration load demands. A 24 V output continuous current of 11.5 A adds useful control power, making this module a solid choice for high-demand drive systems.
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Product Description:
The KDV 3.1-100-220/300-220 supply module is produced by Bosch Rexroth Indramat within the KDV Supply Modules series. This unit serves as the central power interface for Indramat drive packages, rectifying three-phase mains power, providing a stabilized 24 V auxiliary bus, and returning regenerated energy to the line. By managing both feed-in and feedback power, the module supports coordinated motion of servomotor axes in factory automation cells and machining centers. Its design allows cabinet integration with forced-air cooling while maintaining common DC bus stability. That arrangement allows one power section to support multiple compatible drives while also supplying the control electronics needed for system operation.
The module accepts a nominal three-phase input of 3 × 220 VAC and is rated for a DC-link current of 100 A. During dynamic load surges, it can deliver a peak current of 160 A for 300 ms, and the feed-in path can supply up to 48 kW to connected drives. The integrated logic supply produces a continuous 24 V rail at 11.5 A. Voltage ripple is limited to 2%, which helps control electronics remain stable during switching activity and changing axis demand. These operating values suit systems where several axes accelerate and decelerate at the same time while the control hardware remains powered from the internal auxiliary supply.
Energy produced by regenerative braking is routed through an internal bleeder that can dissipate bursts of 40 kW. The storage capacitors can absorb up to 100 kWs of feedback energy when the mains is off, which helps hold the DC bus briefly until contactors drop out. Thermal data shows a power loss of 150 W inside the switchgear cabinet, while additional heat is expelled through the attached fan unit. That fan adds 4.2 kg to the assembly, bringing the total module mass to 21 kg. Separating cabinet loss from fan-unit exhaust makes it easier to understand how much heat remains inside the enclosure and how much is removed by forced airflow.
