User Manual

Table Of Contents
ACCU AC Connection Unit
1 Product Overview
The AC Connection Unit (ACCU) for RBS 2102 distributes and supervises the
AC power to the units in the RBS cabinet. The ACCU consists of two parts, the
Basic Unit and the Connection Box.
1.1 Main Features
The ACCU has the following main features:
AC connection and disconnection to the cabinet (Main Switch)
Power line disturbance protection
+24 V AC supply to the ECU
Connection and disconnection of AC power, including circuit breakers,
to the PSUs
Supervision of AC mains and alarm issuing to the ECU if undervoltage
Alarms handling from the circuit breakers and the transient protection to
the ECU
Fuse (circuit breaker) connection for the climate unit
Service outlet
3(8)
EN/LZT 720 0231 Uen R1A