The 410D Auto-Charged Capacitor Trip Device is a micro-controller based high speed capacitor type circuit breaker tripping unit. It differs from standard CTD’s in that has a separate charging circuit and is isolated from the mains.
This device is primarily for use with circuit breakers which require some form of AC power for their closing operation; i.e. circuit breakers having either a stored energy closing mechanism with an AC-operated release coil, or an AC solenoid-operated closing mechanism. The 410D-40J has a stored capacity of 40.4J at 380V and can maintain a full charge for 48 hours.
