Residual-current circuit breaker device

A leakage circuit breaker and circuit breaker technology, applied in circuits, emergency protection devices, electrical components, etc., can solve the problems of large space occupation and complicated wiring.

Pending Publication Date: 2022-05-03
ZHEJIANG CHINT ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an important product of low-voltage circuit breakers, leakage circuit breakers generally have functions such as short-circuit protection, overload protection, leakage protection, overvoltage and undervoltage protection, and leakage self-test. If users also need surge protection, shunt tripping, and fault alarms, Fault display, auxiliary contact and other functions, the traditional implementation method is to reconnect an accessory with this function in the distribution box, the wiring is more complicated, and it takes up a lot of space

Method used

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  • Residual-current circuit breaker device
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  • Residual-current circuit breaker device

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Embodiment Construction

[0044] The following is attached Figure 1-21 The given examples further illustrate the specific implementation of the leakage circuit breaker device of the present invention. The earth leakage circuit breaker of the present invention is not limited to the description of the following embodiments.

[0045] Such as figure 1 , 10 As shown in -13, the leakage circuit breaker device of the present invention includes a leakage circuit breaker 1, a function expansion base 2, and a function expansion module 3 that is plugged and mated with the function expansion base 2. Further, the leakage circuit breaker 1 is used in conjunction with the function expansion base 2, and the leakage circuit breaker 1 and the function expansion base 2 are of an integrated structure or a detachable split structure.

[0046] preferred, such as figure 1 , 10 As shown in -13, the function expansion base 2 is arranged on one side of the earth leakage circuit breaker 1, the function expansion base 2 inc...

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Abstract

The invention relates to the field of low-voltage electric appliances, in particular to a residual-current circuit breaker device which comprises a residual-current circuit breaker, a function extension base and a function extension module in plug-in fit with the function extension base. The function extension base is arranged on one side of the residual-current circuit breaker, the function extension base comprises a module slot 20, and the function extension module is inserted into the module slot; according to the residual-current circuit breaker device, the function extension module is convenient to assemble / disassemble.

Description

technical field [0001] The invention relates to the field of low-voltage electrical appliances, in particular to a leakage circuit breaker device. Background technique [0002] Low-voltage circuit breakers, also known as automatic air switches or automatic air circuit breakers, can be used to distribute electrical energy, protect circuits and power supply equipment in the event of overload or short-circuit faults, and can also be used for infrequent switching of circuits and infrequent starting of motors. As an important product of low-voltage circuit breakers, leakage circuit breakers generally have functions such as short-circuit protection, overload protection, leakage protection, overvoltage and undervoltage protection, and leakage self-test. If users also need surge protection, shunt tripping, and fault alarms, Fault display, auxiliary contact and other functions are traditionally implemented by re-connecting an accessory with this function in the distribution box. The ...

Claims

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Application Information

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IPC IPC(8): H01H71/02
CPCH01H71/0228
Inventor 邵江华司莺歌
Owner ZHEJIANG CHINT ELECTRIC CO LTD
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