The HTM3C electric energy meter’s external molded case circuit breaker is a comprehensive intelligent molded case circuit breaker equipped with overload protection, short circuit protection, overvoltage protection, undervoltage protection, phase loss protection, automatic reclosing, and communication functions. It is suitable for low-voltage power grids where the neutral point of the four-wire system on the low-voltage side of the distribution transformer is directly grounded (TT). It provides indirect contact protection against personal electric shock hazards and also protects lines or equipment against overcurrent, short circuit, undervoltage, overvoltage, phase loss, and residual current.

This circuit breaker features small size, convenient installation and use, adjustable fixed action values, and simple operation. It can meet the needs of users in various places and environments, and is particularly suitable for the renovation or new construction projects of JP cabinets in national urban and rural power grids.

Complies with the standard: GB/T14048.2, and meets some of the requirements for control functions specified in O/GDW11421-2015.