... modular structure of a single product type, integrating the traditional circuit breaker (fuse), contactors, overload (or over-current, phase) ... specifications. 6)Auxiliary contact: contact interaction with the main circuit, with electrical control and indication function, divided by the ... 1)ambient air temperature: -5 °C ~ +40 °C (24 hours, the average value does not exceed +35 °C). 2) Altitude ...