Product overview

Nm1le series residual current operated circuit breaker (hereinafter referred to as residual current operated circuit breaker) is one of the residual current operated circuit breakers designed and developed by the company with new technology. It is applicable to the circuit with AC 50Hz, rated voltage to 400V and rated current of 16A to 800A.

Its main function is to provide indirect contact protection for personal electric shock with fatal danger. The residual current operated circuit breaker with rated residual operating current not exceeding 0.03A can also be used as supplementary protection for direct contact in case of failure of other protection measures, but it can not be used as the only direct contact protection. At the same time, it can also be used to prevent electrical fire caused by contact fault current. It can also be used to protect the overload and short circuit of the line, and can also be used for infrequent conversion of the line.

The residual current operated circuit breaker has small volume (the same volume as the corresponding molded case circuit breaker), high breaking height, short arcing and residual operating current. At the same time, it can be equipped with alarm contact, shunt release, undervoltage release, auxiliary contact, rotary handle operating mechanism, electric operating mechanism and other accessories, and can adopt various wiring modes such as front board, back board and plug-in, It is the product used by users.

Residual current operated circuit breakers can be installed vertically (i.e. vertically) or horizontally (i.e. horizontally).

Standards: GB 14048.2, IEC 60947-2.

Technical parameter