S291-Cxxx Overview
Key Features
- 400Hz and DC power systems. Special direct current version MCBs include a permanent magnet for DC fault current interruption. These "UC" versions are rated 250/500VDC under UL1077/CSA 22.2 No. 235. Continuous current ratings are as low as 0.2 amperes and up to 125 amperes maximum. MCBs are of compact size and can be quickly mounted on standard 35mm DIN rail or can be front mounted by use of a front mounting kit. MCBs include line and load side terminals for conductors from 18 through 4AWG (0.75
- 25mm2) for 40 amperes; up to 2AWG for 50 and 63 amperes. MCBs can also be connected via busbar conductors which can be either upper or lower mounted for top feed or bottom feed. Dual function terminals allow busbars to be connected with main incoming line conductors without separate lugs