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 is a PowerPacT M and P circuit breaker enclosure can accept 2 and 3 pole circuit breakers that has a current rating of 250-1200A and is NEMA 1 enclosure. This product comes with an 18 month warranty.