SPM 75-TB

The Bosch Rexroth Indramat SPM 75-TB amplifier module from the SPM Inverter Modules series delivers precision spindle control with a rated current of 75 A and a nominal input voltage of 520 V. Encased in a robust black metallic housing, this spindle amplifier module is designed for industrial environments where protecting the circuit board from environmental pollutants is critical. The device offers easy electrical integration via protected power connection terminals and features an intuitive ground connection indication displayed by an LED. Compact yet durable, the SPM 75-TB balances performance and protection in a single unit.

Reliability is ensured by a built-in cooling fan and a forced convection cooling method that maintain optimal operating temperatures between 0 and +40 °C. The module’s painted enclosure contributes to corrosion resistance and meets industrial finish standards. Mounting flexibility is accommodated up to an installation height of 1000 meters MSL, with derating guidelines advising a 1.5% performance adjustment per additional 100 meters above sea level. For safe and consistent operation, the power terminals are covered by a plastic shield to prevent accidental contact and short-circuits.

Commissioning should be performed by trained personnel, and the SPM 75-TB is backed by a 01 Year warranty that protects against manufacturing defects under normal use. With its space-saving footprint, clear LED diagnostics, and straightforward terminal connections, this spindle amplifier module integrates seamlessly into sophisticated motion control setups. Its robust design and guaranteed support make the SPM 75-TB an ideal solution for high-precision industrial spindle drives.