SITOP BUF8600 10s Buffer module for PSU8600 Buffer capacity 10 s/40 A with double-layer capacitors maintenance-free The SITOP BUF8600 buffer modules with maintenance-free energy storage devices are components of the SITOP PSU8600 modular system and provide buffering for brief power failures up to 10 s with 24 VDC and 40 A full load. They automatically supply DC voltage in the event of power failure. Up to two BUF8600 buffer modules in any combination can be connected to the SITOP PSU8600 basic unit. The connection is made on the top of the modules without involving any wiring work using the System Clip Link, a connecting plug for system data and energy supply. The unparalleled PSU8600 modular power supply system with full TIA integration sets a new standard for system reliability and efficiency.