Compact circuit breaker (MCB) according to EN60898-1, with time-delayed thermal overload release and electromagnetic short-circuit release. Alternatively, a RESTART reclosing device RM TOP, a RESTART remote operator CM or two auxiliary devices can be installed on the left side. With label window on the device. Connection (max): flexible 16qmm, rigid 10qmm with insulated plug-in protection. The connection screws can be provided with a sealable cover (order accessories separately). Space-saving series with two protected poles or one protected pole with switched neutral conductor in one division unit. The switching lever can be sealed when switched on or off, or can be locked with a lever lock (order accessories separately) for a padlock.