Residual current operated circuit breaker

Abstract

The invention provides a residual current operated circuit breaker. The circuit breaker comprises a shell, an electromagnetic tripping device, an arc extinguishing device, a first operating mechanism,a second operating mechanism, an electric leakage tripping device, a first terminal assembly, a second terminal assembly, a third terminal assembly and a soft wire assembly, wherein one side of a mounting shell is provided with a mounting gap, the first terminal assembly can run through the mounting gap and be clamped in a space formed by a first shell and a second shell; the second terminal assembly is accommodated in a first accommodating chamber; the third terminal assembly is accommodated in a second accommodating chamber; and the soft wire assembly is accommodated in the second accommodating chamber. According to the residual current operated circuit breaker, the protection function of the product is more complete, the structural layout of the shell is more compact, and the product mounting and wiring process is more convenient and reliable.

Description

technical field [0001] The invention relates to the low-voltage electric field, in particular to a residual current operated circuit breaker. Background technique [0002] As we all know, in addition to the control, overload and short-circuit protection functions of the traditional miniature circuit breaker (MCB), the leakage circuit breaker also has the leakage protection function, which can play a positive role in protecting human life and property safety. Quickly cut off the faulty power supply within a short time to protect the safety of people and electrical equipment. [0003] Existing RCBOs are usually divided into the following two implementations according to their own structural layouts. The first type of RCBO has the same width as the compact product, but because the leakage detection and N-pole connecting flexible wires are located on the left side of the product, the length of the product is longer, so a special distribution box is still required for installati...

AI Technical Summary

Problems solved by technology

The first type of RCBO has the same width as the compact product, but because the leakage detection and the N-pole connecting flexible wire are located on the left side of the product, the length of the product is longer, so a special distribution box is still required for installation. N pole connection soft wire does not have the basic protection function of RCBO, resulting in poor reliability of the product

The second type of RCBO has the same size as the compact product, but lacks N-pole connecting flexible wires, which makes the product installation cost higher and the convenience of user wiring needs to be improved

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