Abstract: A pyrotechnic current breaker (1) for severing a conductor (3) by means of a severing piston (2) has a housing, which comprises a housing upper part (8) and a housing lower part (10). The conductor (3) extends through the housing between the housing upper part (8) and the housing lower part (10), and the severing piston (2) is guided in a cavity (7, 9) in the housing. The current breaker (1) also has an ignition unit (13) for driving the severing piston (2). A quenching means (18) is provided for suppressing or quenching the arc produced during the severing. According to the invention, the quenching means (18) is situated in a recess (17) on the periphery of the severing piston (2). A seal between the severing piston and the housing, more particularly an o-ring (20-21) positioned in an additional recess (19, 22) in the severing piston (2), is preferably provided adjacent to the recess (17).

Abstract: The invention relates to a pyrotechnic current breaker (1) for severing a conductor (9), having a housing (2) which is equipped with a cutting piston (8) and an ignition unit (16) for driving the cutting piston (8). The conductor (9) passes through the housing (2), and when the igniter (18) is triggered, the cutting piston (8) severs a printed circuit board (12) from the conductor (9). According to the invention, at least one spacer (20), preferably three spacers (20), are provided between the cutting piston (8) and the conductor (9), said spacers having the shape of pins and lying on a circle (19), the center of which lies on the central axis (24) of the cutting piston (8).

Abstract: A pyrotechnic current breaker (1) for severing a conductor (3) by means of a severing piston (2) has a housing, which comprises a housing upper part (8) and a housing lower part (10). The conductor (3) extends through the housing between the housing upper part (8) and the housing lower part (10), and the severing piston (2) is guided in a cavity (7, 9) in the housing. The current breaker (1) also has an ignition unit (13) for driving the severing piston (2). A quenching means (18) is provided for suppressing or quenching the arc produced during the severing. According to the invention, the quenching means (18) is situated in a recess (17) on the periphery of the severing piston (2). A seal between the severing piston and the housing, more particularly an o-ring (20-21) positioned in an additional recess (19, 22) in the severing piston (2), is preferably provided adjacent to the recess (17).

Abstract: The aim of the invention is to produce a conductor (14) for a circuit breaker (11), said conductor having a printed circuit board (14c) to be separated between two conductor ends and additionally having a conductor encapsulation (15) that has a cavity (20) in which the printed circuit board (14c) is located. This is achieved in that a plastic melt is injected, via at least one gate (21), into an injection mold, in which the conductor (14) is located. According to the invention, the gating process (21) is carried out from out of the cavity (20), through which the conductor passes, wherein the plastic melt flows from the gate (21) to the actual conductor encapsulation (15) through a runner (22; 24a-24d; 26a, 26b). In the process, the gate (21) can remain in the completed circuit breaker (11).

Abstract: The invention relates to a pyrotechnic current breaker (1) for severing a conductor (9), having a housing (2) which is equipped with a cutting piston (8) and an ignition unit (16) for driving the cutting piston (8). The conductor (9) passes through the housing (2), and when the igniter (18) is triggered, the cutting piston (8) severs a printed circuit board (12) from the conductor (9). According to the invention, at least one spacer (20), preferably three spacers (20), are provided between the cutting piston (8) and the conductor (9), said spacers having the shape of pins and lying on a circle (19), the center of which lies on the central axis (24) of the cutting piston (8).

Abstract: A disconnect has a housing defining a cavity, a busbar fixed in the housing and extending through the cavity, a piston movable in the cavity past the piston for breaking a piece out of the busbar, and a plurality of metallic filter elements exposed in the cavity below the busbar and electrically connecting with the piece on activation of the disconnect. An igniter displaces the piston in the cavity into engagement with and past the busbar so as to break the piece out of busbar and displace it past the filter elements such that an arc created by breaking out the piece is drawn by the piece away from the busbar and energy of the arc heats and is dissipated in the filter elements.

Abstract: The invention relates to a current breaker in which a busbar (18) passes through a cavity (25) in which a piston (14) can be moved. By moving the piston (14), a circuit board (19) is broken out of the busbar (18), thus interrupting the current flow. The current breaker has at least one metal filter element (16) which, according to the invention, extends up to the cavity (25). This ensures that the disconnected circuit board (19) touches the at least one filter element (16) during tripping. After the circuit board (19) is separated from the busbar (18), an electric arc is formed which, due to the filter element (16) being touched by the circuit board (19), switches over to the metal filter element (16) when the circuit board (19) continues to move, as a result of which the energy from the system inductance is converted into heat loss in the filter element (16). When suitably designed, there is only a moderate increase in pressure in the current breaker and thus practically no external effect.