The invention relates to an electric switching device (10) for an energy accumulator in an electric vehicle, comprising a housing (20) inside which at least one switching section (30) that includes two input contacts (32a, 32b) and at least one output contact (34) is arranged, and a rotary component (40) which is mounted in such a way as to be rotatable relative to the housing (20) about a switching axis (42) between at least one OFF position (I), a series-connecting position (II), and an ON position (III); said rotary component (40) includes at least one conductor (44) which has at least two conductor contacts (44a, 44b) and which connects the first input contact (32a) in an electrically conducting manner to the output contact (34) in the series-connecting position (II) and connects the second input contact (32b) in an electrically conducting manner to the output contact (34) of the at least one switching section (30) in the ON position (III).

An electromagnetic switch for the starter of a heat engine, including a first terminal (B1), a second terminal (B2), a first mobile contact (C1) which is movable between an inactive position and a power supply position, and at least one second mobile contact (C2), which is placed between the first mobile contact (C1) and the second terminal (B2) and which is movable between a disconnected position and a connected position. The switch is capable of being placed in three operating states: an inactive state, an engagement state, and a power supply state.

A low-, medium-, or high-voltage voltage switchgear with a circuit breaker or circuit breakers is disclosed which can switch electrical equipment. To protect the switchgear, and the circuit breakers in the switchgear against so called spot welding under vacuum atmosphere, such as during a closing operation of a switchgear used, for example, for switching capacitive or inductive equipment or inductive or capacitive current network an inrush current limiter is placed electrically in line or in series with the current path of the circuit breaker.

The disclosure relates to a circuit arrangement for suppressing an arc occurring during a switching process, wherein a current bypass path comprises a PTC resistor connected in series with a fuse. The current bypass path is provided in parallel with a switch. The disclosure also relates to a photovoltaic power plant with a photovoltaic generator which is connected to an inverter via DC lines. In this arrangement, such a circuit arrangement is arranged in at least one of the DC lines.

The disclosure relates to a circuit arrangement for suppressing an arc occurring during a switching process, wherein a current bypass path comprises a PTC resistor connected in series with a fuse. The current bypass path is provided in parallel with a switch. The disclosure also relates to a photovoltaic power plant with a photovoltaic generator which is connected to an inverter via DC lines. In this arrangement, such a circuit arrangement is arranged in at least one of the DC lines.

A contactor for wiring components of an onboard electrical system, includes: a stationary contact unit for electrically connecting to the onboard electrical system components; a movable contact unit, and an actuation unit for switching the contactor by switching the movable contact unit between a closed state and an open state. The movable contact unit has at least one first contact element for conducting a current and at least one second contact element for conducting and limiting the current during the switching process. A first electric contact formed between the stationary contact unit and the at least one first contact element has a lower transmission resistance than a second electric contact formed between the stationary contact unit and the at least one second contact element. The actuation unit is designed to switch the contact elements between the closed state and the open state in a staggered manner relative to one another so that temporarily only the at least one second contact element contacts the stationary contact unit in order to limit the current during the switching process.

A contactor for wiring components of an onboard electrical system, includes: a stationary contact unit for electrically connecting to the onboard electrical system components; a movable contact unit, and an actuation unit for switching the contactor by switching the movable contact unit between a closed state and an open state. The movable contact unit has at least one first contact element for conducting a current and at least one second contact element for conducting and limiting the current during the switching process. A first electric contact formed between the stationary contact unit and the at least one first contact element has a lower transmission resistance than a second electric contact formed between the stationary contact unit and the at least one second contact element. The actuation unit is designed to switch the contact elements between the closed state and the open state in a staggered manner relative to one another so that temporarily only the at least one second contact element contacts the stationary contact unit in order to limit the current during the switching process.