Enclosures offer sufficient space for wire bending and ease of installation and maintenance. Enclosures are copper-free cast aluminum (3/10 of 1%). XCBC and larger units are furnished with hinges. Covers are removable for clear access to breakers. For XCBA and XCBB units, hinge and mounting pan are optional.Front mounted circuit breaker handle is padlockable in either “on” or “off” position.