ABL 8BUF buffer module ABL 8RPS / RPM / WPS power supplies are able to deliver their nominal power in the event of short voltage interruptions from the ABL 8RPS / RPM / WPS range is used. For short interruptions, the Buffer module takes up the relay and continues to supply a 24 Vdc voltage. Power duration: 40 A for 100 ms and 1 A for 2 s. Standards CB scheme EN60950-1, UL, cCSAus