Complete range of UL 1077 recognized DIN rail mounted miniature circuit breakers up to 63A current rating. Standard ratings of 10 kAIC up to 277/480VAC. Current limiting design provides fast short-circuit interruption that reduces the let-through energy, which can damage the circuit. Suitable for supplementary protection. Thermal-magnetic overcurrent protection. Six levels of short-circuit protection, categorized by B, C, D, K, S and Z curves. Trip-free design-breaker can not be defeated by holding the handle in the ON position. Captive screws cannot be lost. Fulfill UL 1077, CSA C22.2 No.235 and also IEC 60947-2 Standard. Field-installable shunt trip and auxiliary switch subsequent mounting. Module width of only 17.7 mm (per pole). Contact position indicator (red/green). Easy installation on DIN rail. Possibility for sealing the toggle in ON or OFF position.