molded case circuit breaker

The FCM2 series DC MCCB is fixed working voltage DC550V and below, fixed operating current to 800A electric circuit...



FCM2 Moulded Case Circuit Breaker





Applicable



The FCM2 series DC Moulded Case Circuit Breaker(MCCB) the shell circuit breaker is a Leqing brocade electricity Limited company uses the international advanced design, the technique of manufacture development new circuit breaker, its fixed working voltage DC550V and below, fixed operating current to 800A electric circuit. The circuit breaker has the short circuit, the over-load protection function, can protect the line and the power equipment is not damaged.



Standards

IEC60947-1 GB14048.1 general rule

IEC60947-2 GB14048.2 low-voltage circuit-breaker

IEC60947-4-2 GB14048.6 contact device and electric motor starter



Characteristic



The FCM2 series cocurrent circuit breaker, uses international origination patent extinguishing of arc technology CCV, namely four accelerate again and slits breaking to disappear the dissociation extinguishing of arc technology, causes the arc over distance to be shorter, the breaking capacity is higher. The volume small, short-circuits the short time delay to be accurate, in the specification complete usual situation according to the standard standard choice, regarding the battery unit electrical power system's grading coordination, may simplify the computation short-circuit current, does not need to consider parameters and so on resistance, electric cable cross-sectional area, copper content, current limiting coefficient, electric cable thermally stable. The upper and lower layer circuit breaker only need according to the nominal current rank choice, be able to realize the entire selective three sections of protections, this performance achieves the international standard.

The JM1Z series cocurrent models the shell circuit breaker in the antiseptic property, used internationally most advanced the hardening and the anticorrosion

The surface treatment craft tufftride adds the non-gloss galvanization, causes the product antiseptic property to be higher than the nickel plating, is suitable in the high protection rank use.



Use Environment



Altitude above sea level 2000m and below;



The ambient temperature is not lower than - 5 and is not higher than 40, is higher than 40 may fall allows to use;



The ability is affected with damp the wet air influence;



Ability salt mist oil mist influence;



Ability mold's influence;



When receives the ships normal vibration can work reliably;



In non-explosion hazard medium, and the medium does not have sufficiently the dipping and the destruction insulation gas and the electric conduction dust place;



It is not having the sleet attack's place.