The enclosures for the family of LA circuit breakers are cULus listed unless otherwise noted. The enclosures are suitable for service entrance equipment when neutral assembly is installed. The short circuit current rating of the enclosed circuit breakers is equal to the rating of the circuit breaker installed unless otherwise noted. All enclosures will accept 100% rated circuit breakers unless otherwise noted.  This LA-Frame breakers insulated neutral assembly is rated at 400A and is groundable. 10 million cycles mechanical durability for minimum required maintenance on your pressurized fluid circuits.