PST6100.680-L

The Bosch Rexroth Indramat PST6100.680-L belongs to the PST Thyristor Power Units series and serves as a robust drive controller for welding transformers. Featuring a Nominal System Current of 130 A and a Voltage Supply of 24 V DC, this thyristor unit ensures reliable power regulation under demanding conditions. The primary function of the PST6100.680-L is to precisely control transformer output for welding applications, delivering stable performance across varying loads.

Incorporating an Integrated Timer and advanced temperature monitoring, the PST6100.680-L offers sophisticated control options with a dedicated weld timer and overtemperature protection. Cooling is managed by an efficient Air Blower system, maintaining optimal operating temperatures even when ambient conditions reach up to 55 °C. The unit supports a control frequency of 50–60 Hz and accommodates transformers up to 76 kVA. Additional interface slots allow for serial, parallel, or fieldbus connectivity, and a retrofitting slot ensures future expandability.

Built to IP20 protection standards, this power unit features a line voltage connection of 400 V and is equipped with MOV overvoltage protection for enhanced durability. With a basic power loss of 70 W in the switchgear cabinet and a mass of approximately 12.5 kg, the PST6100.680-L balances compact design with high operational reliability. Integrated error signaling can be reset via an input signal or a BOS-5000 operator terminal. Ideal for industrial welding setups, this thyristor power unit delivers precise control, efficient cooling, and long-term reliability in automated production environments.