KDA 3.1-150-3-LY0-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 3.1-150-3-LY0-W1 is part of the KDA Spindle Drives series and is a spindle drive with a rated current of 150 Amps. It features a mounted heatsink blower for forced cooling and operates with a DC supply voltage of 300 VDC. The drive accepts speed command values via SERCOS Interface and supports a second encoder input and synchronous input.
Internal Product Review
The KDA 3.1-150-3-LY0-W1 spindle drive from Bosch Rexroth Indramat features a rated current of 150 A and a 300 VDC supply voltage, making it highly effective for demanding spindle applications. Its forced cooling design with a mounted heatsink blower ensures stable operation within a 5 to 45 degrees Celsius ambient temperature range. This model stands out for delivering consistent performance under continuous industrial use.
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 3.1-150-3-LY0-W1 belongs to the KDA Spindle Drives series manufactured by Bosch Rexroth Indramat. It is a closed-loop power module that regulates induction or synchronous spindles by converting intermediate DC bus energy into three-phase output for high-speed machining axes. Within an automation cell, the unit links the machine control to the motor and manages velocity feedback, torque generation, and thermal behavior so the spindle can hold speed under changing loads. The drive is intended for machine tools that need stable spindle performance during acceleration, deceleration, and varying cutting conditions.
The power stage is rated for a continuous output of 150 A, allowing direct connection to large-frame spindle motors without an external booster. A regulated bus of 300 VDC supplies the inverter section and matches common DC links used in multi-axis drive cabinets. Internal cooling relies on an auxiliary line of 220 V/50–60 Hz that powers a heatsink-mounted blower for airflow through the fin channels. Heat removal is provided by forced cooling, which supports close mounting in dense enclosures and helps control temperature during sustained spindle loading. This cooling arrangement removes heat from the power section without relying only on passive airflow inside the cabinet.
The electronics operate in ambient temperatures from 5 to 45 °C, and installation is permitted up to 1000 m above sea level before derating is required. Speed commands are transmitted over a fiber-optic SERCOS interface, which avoids analog drift and provides deterministic timing for coordinated machine functions. Position control can be expanded through a second encoder input and synchronous input, allowing dual-channel feedback for high-precision lathes or combined spindle and positioning duties. That arrangement can support spindle orientation and other indexed positioning tasks when the application requires them.
