A device for breaking DC currents exceeding 2500 A has a resonance circuit (2) connected in parallel with an interrupter (1 ) and a surge arrester (7) connected in parallel with the resonance circuit.
The super capacitor (101) is connected in parallel with the storage battery bank (102).
The invention concerns a circuit arrangement for switching the current from a contact to a thyristor connected in parallel to the contact.
The series circuit of the MOSFETs (21, 22) is connected in parallel to a power supply (4).
The charge (1) is mounted in series with a measure resistor (2) and a capacitor (13) is connected in parallel to said mounting.
The monitoring circuit is mounted parallel to the first control circuit, controlled in a separate manner therefrom but is connected to the switched mode regulator IC (13).
A starter motor (14) is wired in parallel with the accessories so that the starter motor bypasses the safety device (10).
An IGBT provided in parallel with the diode is switched on to bypass the diode if a regular recovery from the motor into the battery should occur.
The capacitor filter (C) is turned on in parallel between the rectifying diode bridge (7) and at least one photodiode (11).
In another embodiment the shunt is series-connected with the load and the free-wheeling circuit is parallel to the series connection of load and shunt.
The precharging resistor and the precharging contactor are electrically connected, as an electrical series circuit in parallel with the main contactor, to two external electrical connections on the housing.
A valve portion (6) is provided in parallel connection with the digital fluid regulator (2), said valve portion being controllable in order to shift the flow rate range provided by the digital fluid regulator (2).