Feature: 1. MULTI PURPOSE: This DC circuit breaker could protect the electrical equipments from overload and short circuit, can also control and isolate them, very practical. 2. STRONG BREAKING CAPACITY: The rated ultimate short circuit breaking capacity of DC circuit breaker is 6000A, which the rated current is 40A, rated voltage is DC 750V. 3. HIGH SENSITIVITY: Our device has built in high sensitivity electromagnetic system, which will trip immediately when short circuit, and help to effectively extinguish the arc, ensures circuit safety. 4. WIDE APPLICATION: You can use this circuit breaker in various fields, such as DC power supply system, ship power system, solar photovoltaic system and other DC systems. 5. 35MM DIN RAIL INSTALLATION: The device is easy to install on any places, with simple modular structure and DIN rail installation way. Specification: Item Type: 3P DC Circuit Breaker Material: Pa66 Rated Current: 40A Rated Voltage: DC 750V Rated Ultimate Short Circuit Breaking Capacity (Household Icn): 6000A Purpose: Solar photovoltaic, electric motorcycle, electric vehicle Mechanical Life: 20000 times Applicable Temperature: -35℃ to +70℃. Package List: 1 x 3P DC Circuit Breaker