Abstract: The moving contact unit (10) is intended for a contact arrangement in a circuit breaker and contains a contact mount (13) and a contact piece (11, 111, 112), which is held by the contact mount (13). The contact mount (13) is arranged on a pivoting shaft (12), which can be mounted in the switch, and is fitted with a catch (135) which can pivot, and with a tripping lever (14) which can pivot and, together with the catch (135), forms a latching point. A simple configuration for the contact unit and for the contact arrangement which holds this contact unit is made possible, despite stringent requirements for maintenance of the circuit breaker and despite a high disconnection rating in that the tripping lever (14) is also arranged on the pivoting shaft (12) alongside the contact mount (13), and in that the contact piece (11) is placed on the contact mount (13) and is held by at least one prestressed bending spring (51), which is mounted on the pivoting shaft (12).

Abstract: The moving contact unit (10) is intended for a contact arrangement in a circuit breaker and contains a contact mount (13) and a contact piece (11, 111, 112), which is held by the contact mount (13). The contact mount (13) is arranged on a pivoting shaft (12), which can be mounted in the switch, and is fitted with a catch (135) which can pivot, and with a tripping lever (14) which can pivot and, together with the catch (135), forms a latching point. A simple configuration for the contact unit and for the contact arrangement which holds this contact unit is made possible, despite stringent requirements for maintenance of the circuit breaker and despite a high disconnection rating in that the tripping lever (14) is also arranged on the pivoting shaft (12) alongside the contact mount (13), and in that the contact piece (11) is placed on the contact mount (13) and is held by at least one prestressed bending spring (51), which is mounted on the pivoting shaft (12).