Purpose and Scope of Application

ARM6Z series intelligent measuring circuit breaker is suitable for distribution protection of circuit with frequency of AC 50Hz/60Hz, rated working current 125A to 250A, rated insulation voltage 1000V and rated working voltage AC380V. The measuring switch has functions such as long delay, short circuit short delay, instantaneous, overvoltage/undervoltage and phase failure protection, providing protection for the line and power equipment.

This new circuit breaker is launched to address the development needs of smart grids. This series of products features multiple independent innovative technologies. The circuit breaker can be installed vertically (i.e. upright) or horizontally (i.e. transversely).

The circuit breaker has isolation function, and its corresponding symbol is: