Mitsubishi Electric PM75RL1A120 Power Supply Module

The Mitsubishi Electric PM75RL1A120 Power Supply Module is an IGBT-based, integrated inverter power module that delivers 75 A at 1200 V to supply stable DC power for inverter and servo-control circuits within industrial automation systems. Designed for motor drives and power conversion systems, it is commonly installed in Mitsubishi drive units, power electronics assemblies, CNC machines, and other automated equipment where precise, reliable power conversion is essential to protect sensitive electronics and maintain consistent performance. Key technical details include the MPN PM75RL1A120, a chassis-mount configuration with heatsink cooling (external cooling required), and an integrated gate-drive interface that simplifies control wiring while providing built-in protection for overcurrent, short circuit, and overtemperature events. As an integrated inverter power module, it consolidates switching devices and drive circuitry into a single package to support inverter drives, servo systems, and motor control applications that demand rugged, fail-safe operation. Common replacements listed for maintenance or repair include the Mitsubishi PM50RL1A120, Mitsubishi PM100RL1A120, and Infineon FF75R12KT4 IGBT modules, enabling cross-reference if a direct PM75RL1A120 unit is unavailable.