CN204117997U

CN204117997U - A kind of integral type 3P+N residual current circuit breaker

Info

Publication number: CN204117997U
Application number: CN201420515120.0U
Authority: CN
Inventors: 周维峰; 林凯; 夏乾淼; 韦长江
Original assignee: WENZHOU AOLAI ELECTRIC CO Ltd
Current assignee: WENZHOU AOLAI ELECTRIC CO Ltd
Priority date: 2014-09-03
Filing date: 2014-09-03
Publication date: 2015-01-21
Anticipated expiration: 2024-09-03

Abstract

The utility model relates to a kind of integral type 3P+N residual current circuit breaker, comprise base, upper cover and be arranged on the separation housing separating 3 groups of P level circuit breakers and 1 group of N level circuit breaker between base and upper cover, described separation housing comprises the terminal fixing pedestal that split is arranged, the binding post place of separating shell one end forms terminal breach, terminal fixing pedestal is arranged on the terminal indentation, there separating housing, forms wire guide between terminal fixing pedestal and separation housing.The utility model changes the structure separating housing in the middle of residual current circuit breaker, terminal fixing pedestal is separated from separation housing, when mounted, terminal fixing pedestal can be installed after the wire of zero-sequence transformer installs again, the wire originally needed by external cabling is connected at circuit breaker internal cabling, eliminates and need the extra Connection Block installed outside residual current circuit breaker, reduce the volume of circuit breaker, convenient processing, reduces production cost.

Description

A kind of integral type 3P+N residual current circuit breaker

Technical field

The utility model relates to a kind of residual current circuit breaker, especially a kind of integral type 3P+N residual current circuit breaker.

Background technology

Residual current circuit breaker is a kind of conventional electric switch, is mainly used in the various places such as industry, business, residential houses.The zero-sequence transformer of 3P+N residual current circuit breaker is generally arranged on N level, wire through zero-sequence transformer needs to be connected respectively in 3 P level circuit breakers, generally adopt now outside 3P+N residual current circuit breaker, install a Connection Block additional, connect each circuit breaker, realize zero-sequence transformer and connection at different levels, the Connection Block additionally installed additional adds the volume of product, and adds the cost of product.

Summary of the invention

For above-mentioned reasons, the purpose of this utility model is to provide a kind of simple and reasonable, integral type 3P+N residual current circuit breaker easy to process.

For achieving the above object, the utility model adopts a kind of integral type 3P+N residual current circuit breaker, comprise base, upper cover and be arranged on the separation housing separating 3 groups of P level circuit breakers and 1 group of N level circuit breaker between base and upper cover, described separation housing comprises the terminal fixing pedestal that split is arranged, the binding post place of separating shell one end forms terminal breach, terminal fixing pedestal is arranged on the terminal indentation, there separating housing, forms wire guide between terminal fixing pedestal and separation housing.

The utility model is set to be provided with zero-sequence transformer in described N level circuit breaker further, zero-sequence transformer center is through 4 wires, wherein 1 wire is connected with the binding post of N level circuit breaker, and other 3 wires are connected respectively by the binding post of wire guide with 3 groups of P level circuit breakers.

The beneficial effects of the utility model change the structure separating housing in the middle of residual current circuit breaker, terminal fixing pedestal is separated from separation housing, when mounted, terminal fixing pedestal can be installed after the wire of zero-sequence transformer installs again, the wire originally needed by external cabling is connected at circuit breaker internal cabling, eliminates and need the extra Connection Block installed outside residual current circuit breaker, reduce the volume of circuit breaker, convenient processing, reduces production cost.

Accompanying drawing explanation

Fig. 1 is the explosive view of the utility model specific embodiment.

Fig. 2 is the schematic diagram that the utility model specific embodiment removes base and zero-sequence transformer.

Embodiment

As Fig. 1, shown in Fig. 2, specific embodiment of the utility model is a kind of integral type 3P+N residual current circuit breaker, comprise base 1, upper cover 2 and be arranged on the separation housing 3 separating 3 groups of P level circuit breakers and 1 group of N level circuit breaker between base 1 and upper cover 2, separate the terminal fixing pedestal 4 that housing 3 comprises split setting, binding post 5 place of separating housing 3 one end forms terminal breach, terminal fixing pedestal 4 is arranged on the terminal indentation, there separating housing 3, upper cover 2 being arranged rivet 6 is fixed on base 1 through terminal fixing pedestal 4, the binding post 5 of this end is arranged in terminal fixing pedestal 4, wire guide 7 is formed between terminal fixing pedestal 4 and separation housing 3, be provided with zero-sequence transformer 8 in N level circuit breaker, zero-sequence transformer 8 center is through 4 wires 9, and wherein 1 wire 9 is connected with the binding post 5 of N level circuit breaker, and other 3 wires 9 are connected respectively by the binding post 5 of wire guide 7 with 3 groups of P level circuit breakers.

Claims

1. an integral type 3P+N residual current circuit breaker, comprise base, upper cover and be arranged on the separation housing separating 3 groups of P level circuit breakers and 1 group of N level circuit breaker between base and upper cover, it is characterized in that: described separation housing comprises the terminal fixing pedestal that split is arranged, the binding post place of separating shell one end forms terminal breach, terminal fixing pedestal is arranged on the terminal indentation, there separating housing, forms wire guide between terminal fixing pedestal and separation housing.

2. integral type 3P+N residual current circuit breaker according to claim 1, it is characterized in that: in described N level circuit breaker, be provided with zero-sequence transformer, zero-sequence transformer center is through 4 wires, wherein 1 wire is connected with the binding post of N level circuit breaker, and other 3 wires are connected respectively by the binding post of wire guide with 3 groups of P level circuit breakers.