KDA 3.1-150-3-AYI-U1

Product Description:

The KDA 3.1-150-3-AYI-U1 is a spindle drive unit from the KDA series by Bosch Rexroth Indramat, built for systems that require steady servo amplification. It comes with a panel mounting structure and a build size suited for compact control cabinets. The internal circuitry is optimized for analog and digital interfaces, which helps when the system needs to switch between older control logic and newer signal platforms. The design includes resolver or encoder feedback compatibility, giving flexible options for position detection depending on system layout.

This unit delivers 3.1 kW of rated power and a maximum current of 150 A. That current range supports dynamic acceleration profiles in spindle-heavy setups. It operates on a 3-phase, 400 V input voltage, and is cooled using forced air to maintain internal stability during heavier loads. Total weight is around 12 kg, and the full dimensions come in at 320 x 250 x 150 mm, which places it in the mid-range size category for similar servo amplifier drives.

The IP20 protection class keeps the internals safe from contact or debris in enclosed panel installations, though it’s not intended for exposed setups without additional housing. Standards compliance meets both CE and UL marks, keeping it eligible for global machine integrations. This spindle drive is built to support 3-axis configurations, making it a practical choice in multi-spindle layouts or coordinated motion systems. When it’s locked in place and tuned properly, the KDA 3.1-150-3-AYI-U1 handles power spikes, command signals, and feedback data without issue—ideal for demanding applications where precision timing and torque control need to stay reliable shift after shift.