Product Description:

The SM 10/20-TA belongs to the SM AC Inverters series from Bosch Rexroth Indramat. As a panel-mounted AC inverter, it provides controlled DC link power that downstream drive modules convert into adjustable three-phase outputs for servo or induction motors used in material handling, packaging, and processing cells. By matching bus voltage and current to real-time load conditions, the unit supports precise speed and torque regulation while isolating sensitive electronics from supply line fluctuations. This arrangement lets the inverter serve as a shared power source for coordinated axes in modular automation cabinets. It integrates into modular supply racks common to Indramat automation platforms and fits established rack layouts without field rewiring.

Its electrical envelope starts with a minimum DC link of 460 V and rises to a maximum of 700 V. The nominal bus voltage during continuous operation is 520 V, which balances motor torque production with semiconductor switching losses. Under rated loading, the converter supplies 10 A of current for stable acceleration of medium-power axes. During short overload intervals, it can deliver up to 20 A, allowing the drives to overcome static friction or rapid index motions. The DC link is suitable for supply sections that feed several axes from a common rack, where load demand can change quickly. These current levels support protective fuse selection and motor cable sizing while keeping the inverter within its thermal limits.

The cabinet footprint uses a width of 42 cm, a depth of 62 cm, and a height of 22 cm. The housing can be mounted on DIN rails or backplates when adequate clearance is provided for airflow around the heat sinks and for routing high-voltage bus bars. The enclosure corners align with auxiliary filter modules in the SM AC Inverters series, which helps maintain the creepage distances required for this voltage range. Multiple supplies can be installed side by side within standard panel depths without crowding adjacent components.