Line side power, double break, switch neutral electronic circuit breaker

A technology for circuit breakers and power terminals, applied in the field of circuit breakers, can solve problems such as electric shock hazards

Pending Publication Date: 2020-06-30
SCHNEIDER ELECTRIC USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a risk of electric shock if the neutral terminal of the circuit breaker is inadvertently opened, causing power from the source side to flow through the LED's circuit and be present at the load neutral terminal of the circuit breaker

Method used

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  • Line side power, double break, switch neutral electronic circuit breaker
  • Line side power, double break, switch neutral electronic circuit breaker
  • Line side power, double break, switch neutral electronic circuit breaker

Examples

Experimental program
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Embodiment Construction

[0011] Figure 1A and 1B is a circuit diagram of a prior art circuit breaker that incorporates an electronic board that includes light emitting diodes (LEDs) to enable the user to easily identify trip conditions and fault types, such as arc faults or ground faults. The circuit of the electronic board is powered from the load side, but when the circuit breaker contacts are opened, the power supply to the electronic board is interrupted.

[0012] Figure 2A and 2B is a circuit diagram of a prior art circuit breaker showing a miniature circuit breaker that includes an electronic board that includes a light emitting diode (LED) powered from the line power side to ensure that the LED Keep it lit. However, there is a risk of electric shock if the neutral terminal of the circuit breaker is accidentally disconnected, causing power from the source side to flow through the circuit of the electronic board and present at the load neutral terminal of the circuit breaker.

[0013] Fig...

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PUM

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Abstract

A circuit breaker has a first stationary contact connected to line power and a second stationary contact connected to a neutral. A first moveable contact coupled to a load power terminal, is mounted on a moveable actuator and juxtaposed with the first stationary contact to form a power circuit when the first moveable and first stationary contacts are closed. A second moveable contact connected toa load neutral terminal is mounted on the moveable actuator juxtaposed with the second stationary contact to form a neutral circuit when the second moveable and second stationary contacts are closed.The movable actuator moves the first and second moveable contacts in unison to open the power circuit between the first stationary and first moveable contacts and to simultaneously open the neutral circuit between the second stationary and second moveable contacts, in response to actuation of an operating handle or to sensing a tripping event.

Description

technical field [0001] The disclosed invention relates to circuit breakers. Background technique [0002] Miniature circuit breakers are well known in the art. US Patent No. 5,245,302 discloses an illustrative circuit breaker design, belongs to the same assignee as the present application, and the disclosure of which is incorporated herein by reference. As shown in the '302 patent, a basic miniature automatic circuit breaker includes a base and cover, line power terminals, load power terminals and circuitry between the line terminals and load terminals. The circuit includes stationary contacts and movable contacts secured to the contact carrier, the movable contacts being movable between contact open positions and contact closed positions to open or close the circuit. The circuit breaker includes an arc interruption chamber, an operating mechanism for opening and closing the contacts, and a current responsive trip mechanism that releases the operating mechanism to open the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/12H01H71/46H01H71/04
CPCH01H71/12H01H71/46H01H71/04H01H71/123H01H71/002H01H2071/006H01H2071/042H01H83/20H01H2083/201H01H71/0207
Inventor C.米特尔斯塔特
Owner SCHNEIDER ELECTRIC USA INC
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