SITOP BUF8600 100ms buffer module for PSU8600 buffer capacity 100 ms/40 A with electrolytic capacitors maintenance-free *EX approval no longer available* The SITOP BUF8600 buffer modules with maintenance-free energy storage are part of the SITOP PSU8600 modular system and reliably bridge short-term power failures of up to 100 ms at 24 V DC and 40 A full load. They automatically take over the DC voltage supply if the mains voltage fails. Up to two BUF8600 buffer modules can be connected to the SITOP PSU8600 basic unit in any combination. The connection is made on the top of the modules without any wiring effort via the System Clip Link, a connector for system data and power supply. The unique modular power supply system PSU8600 with full TIA integration sets a new standard in terms of system reliability and efficiency.