• 7 fixed resistor stages and a fine trimming stage
• control by Ø 22 mm push-but­tons and switches
• integral forced cooling and digital interface for external PLC con­trol with 24 V DC relay
• Individual resistor stages can be switched in and out via contac­tors.

• Equipment can be controlled locally or via a PLC.
• fine adjustment locally using motorised circular adjustment potentiometer or remotely via PLC
• additional 24 VDC supply pro­vided for PLC control
• transportable version and op­tion of connection via plug con­nectors or test lead sockets possible

These load units are designed for continuous operation and are used for endurance testing of converters and switch mode power supplies for railway applications.