PST625-EL

The Bosch Rexroth Indramat PST625-EL is a powerful module in the PST Thyristor Power Units series, designed for high-current DC welding control in industrial environments. This controller delivers a Nominal System Current of 200 A and operates from a 24 V DC Voltage Supply, ensuring stable power delivery for demanding welding or drive applications. Featuring an Integrated Timer and an efficient Air Blower cooling system, it is optimized for continuous operation in stationary welding equipment up to 141 kVA.

This PST625-EL unit offers precise control functions inherent to the PST 625 series, supporting a rated input voltage range of 400–600 V (–20 % to +10 %) at 50–60 Hz clock frequency. It incorporates an optional I/O interface for Fieldbus, serial or parallel connections to integrate seamlessly with modern automation systems. The drive’s protective housing achieves IP 20 when installed in modular enclosures and IP 54 in switchgear cabinets, safeguarding internal electronics from dust and moisture ingress. Its maximum permissible ambient temperature of 55 °C and cooling air temperature limit of 45 °C ensure reliable thermal performance under harsh conditions.

Built for robust industrial use, the PST625-EL is suitable for altitudes up to 2000 m and requires cooling air free from salts, acids or corrosive agents to maintain longevity. With relative humidity tolerances of 90 % at 20 °C and 50 % at 50 °C, this controller resists condensation risks during operation, storage, and transport. The combination of integrated timing functions, air-blower cooling, and flexible interface options enhances system compatibility and reduces downtime. In industrial welding or drive applications, the PST625-EL delivers precise control, improved efficiency, and dependable operation, making it a valuable component for high-performance automated systems.