Abstract: A lockable manually-operated rotary actuator for an electrical switching device includes a turning handle mounted on a housing and connected to an operating axle of the switching device. A pivotably or displaceably mounted locking member in or on the turning handle is configured to lock the turning handle in a locking position via an operative connection with the housing. At least one released locking opening is present in the locked position with at least one padlock. A protective cap is disposed over the turning handle and provides access to the at least one released locking opening, a shape of the protective cap being such that the protective cap conforms to a shape of the turning handle and is fixed to the housing via a positive connection.

Abstract: A lockable manually-operated rotary actuator for an electrical switching device includes a turning handle mounted on a housing and connected to an operating axle of the switching device. A pivotably or displaceably mounted locking member in or on the turning handle is configured to lock the turning handle in a locking position via an operative connection with the housing. At least one released locking opening is present in the locked position with at least one padlock. A protective cap is disposed over the turning handle and provides access to the at least one released locking opening, a shape of the protective cap being such that the protective cap conforms to a shape of the turning handle and is fixed to the housing via a positive connection.

Abstract: The invention achieves the objective of ensuring that a solar installation mounted on a unit such as, for example, a residential house, can be safely switched off cost-effectively, whereby the consumers are to be galvanically disconnected from the solar installation, and the feed lines leading to the consumers are to be de-energized in case the safety switchgear has triggered a switch-off. A safety switchgear for a solar installation is proposed, whereby the solar installation consists of at least one photovoltaic element, of two connections, each to a feed line leading to a consumer, and said safety switchgear has a bypass that is situated between the two connections and upstream from the feed lines and that has at least one switching mechanism to close the contact points, whereby at least one additional switching mechanism for purposes of opening the contact points is arranged in each of the two feed lines.