The enclosures for the family of PowerPact circuit breakers H- through Q-frame 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. The enclosures' maximum short circuit ratings are 25 kAIR at 600 Vac, 65 kAIR at 480 Vac, 125 kAIR at 240 Vac and 20 kA at 250 Vdc unless otherwise noted. Enclosures accept 100% rated circuit breakers. The LA400R enclosure has a blank top end wall and requires field cut openings. This PowerPact L-Frame, Circuit Breaker Enclosure, 2P, 3P, 15-250A,NEMA 3R, Flush. This enclosure is for L-Frame breakers. This product comes with an 18 month warranty.