KDA 3.1-100-3-A0S-W1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat KDA 3.1-100-3-A0S-W1 is a spindle drive from the KDA Spindle Drives series. It operates with a rated current of 100 Amps and uses a 300 VDC supply voltage. The drive features forced cooling with a mounted heatsink blower and includes a serial RS 232 C interface.
Internal Product Review
The KDA 3.1-100-3-A0S-W1 spindle drive from Bosch Rexroth Indramat delivers reliable performance with a 100 A rated current and 300 VDC supply voltage. Forced cooling via a mounted heatsink blower ensures stable operation within an ambient temperature range of 5 to 45 degrees Celsius. This model stands out for its dependable cooling method and consistent power delivery in demanding applications.
Have a part to sell?
Wake Industrial Warranty
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The KDA 3.1-100-3-A0S-W1 is a spindle drive module produced by Bosch Rexroth Indramat for the KDA Spindle Drives series. It operates on the DC bus of an Indramat drive cabinet and supplies regulated three-phase output current to high-speed machining spindles, allowing the CNC to control rotational speed and torque through analog command signals. By combining current regulation, regenerative braking, and dedicated cooling, the module supports steady spindle operation in metal-cutting and woodworking machines where speed stability and repeatable response are important during changing load conditions.
The drive draws its logic and power-stage energy from a stabilized DC link of 300 VDC, and its power section is rated for a continuous output of 100 A to the spindle motor. Thermal energy is removed by a mounted heat sink blower, while the fan itself is supplied from a separate auxiliary line of 220 V at 50/60 Hz rather than from the DC bus. Velocity reference data reaches the control electronics as an analog speed command, allowing proportional spindle regulation from the machine control. The module does not include an auxiliary encoder channel, so the CNC relies on the primary spindle encoder for feedback and speed supervision during operation.
Operation relies on forced cooling, so cabinet airflow must be maintained throughout the specified ambient range of 5 to 45 °C. Electronic components are derated at higher elevations, and full performance is available up to 1000 m above sea level. For diagnostics and parameter backup, a serial interface (RS-232-C) is provided on the front panel, allowing data exchange with a computer or PLC service connection without interrupting normal spindle functions. Release 3 uses the KDA bus-bar arrangement for the same DC-link class, which supports installation in compatible cabinets that share the matching power architecture.
