Circuit breaker and adapter for a circuit breaker

Patent metadata

Field	Value
Publication number	US-9552949-B2
Application number	US-201514739523-A
Country	US
Kind code	B2
Filing date	Jun 15, 2015
Priority date	Dec 15, 2012
Publication date	Jan 24, 2017
Grant date	Jan 24, 2017

Abstract

A circuit breaker for protecting an electric circuit contains a housing and an adapter having a receiving connector. The circuit breaker has two electrically conductive, substantially cylinder-shaped connection points which are positioned along an axis. Either the outer diameter of the connection points is between 5.0 mm and 5.3 mm and the maximum distance between the connection points is between 19.0 mm and 21.0 mm, or the outer diameter of the connection points is between 6.2 mm and 6.5 mm and the maximum distance between the connection points is between 30.5 mm and 33.0 mm.

First claim

The invention claimed is:

1. A circuit breaker for protecting a circuit, comprising:
a housing;
two electrically conductive, substantially cylindrical connection points disposed along an axis, wherein said connection points having either:
an external diameter being between 5.0 mm and 5.3 mm and a maximum distance between said connection points being between 19.0 mm and 21.0 mm; or
said external diameter being between 6.2 mm and 6.5 mm and said maximum distance between said connection points is between 30.5 mm and 33.0 mm;

a breaker latching mechanism, containing:
a stationary contact being electrically connected to a first of said connection points;
a displaceable contact;
wherein in an electrically conductive state of said breaker latching mechanism, said stationary contact being electrically connected to a second of said connection points by said displaceable contact;
wherein in an electrically non-conductive state of said breaker latching mechanism, said displaceable contact being reversibly lifted off said stationary contact thereby interrupting a flow of current via said first and second connection points through said breaker latching mechanism; and
a spring biasing said breaker latching mechanism to the electrically non-conductive state and a spring force of said spring may be overcome for returning said breaker latching mechanism from the electrically non-conductive state to the electrically conductive state.

2. The circuit breaker according to claim 1 , wherein said connection points having a height in each case of between 4.0 mm and 6.0 mm or between 5.5 mm and 7.0 mm, and/or said connection points are made from a metal strip with a substantially S-shaped cross section.

3. The circuit breaker according to claim 1 , further comprising a manually actuable slider and for reversible tripping, a transfer from the electrically non-conductive state to the electrically conductive state is blocked by said manually actuable slider.

4. The circuit breaker according to claim 3 , further comprising:
a bimetal element;
a contact carrier, said stationary contact being electrically connected to said second of said connection points by said displaceable contact and said bimetal element; and
said bimetal element having a latching lug by which said contact carrier which bears said displaceable contact and is pivotable with respect to said stationary contact is latched in the electrically conductive state.

5. The circuit breaker according to claim 1 , further comprising a manual trigger projecting out of said housing.

6. The circuit breaker according to claim 1 , further comprising;
a bimetal element, said stationary contact being electrically connected to said second of said connection points by said displaceable contact and said bimetal element, wherein said displaceable contact is disposed on said bimetal element.

7. The circuit breaker according to claim 1 , further comprising a magnetic trigger having a coil, said is connected in series with said coil of said magnetic trigger in the electrically conductive state.

8. The circuit breaker according to claim 1 , further comprising a thermal trigger element, said spring being mechanically pre-tensioned in an aperture direction and is held in a contact-making position by said thermal trigger element in the electrically conductive state.

9. The circuit breaker according to claim 8 , wherein said thermal trigger element is an expansion wire.

Assignees

• Ellenberger & Poensgen

Inventors

• Fischer Erich

Classifications

• H01H71/08 Primary

  Terminals; Connections · CPC title

• H01H2085/207

  Bases adapted to fuses with different end contacts or to other components, e.g. circuit breakers; intermediate adaptation pieces · CPC title

• H01H85/0418

  with ferrule type end contacts · CPC title

• H01H2071/088

  Terminals for switching devices which make the devices interchangeable, e.g. with fuses · CPC title

• H01H73/20 Primary

  Terminals; Connections · CPC title