The Eaton CLS6-B20/4 is a molded-case circuit breaker with 25kAIC interrupting ratings and 3-pole, 20A (frame sized) design. The CLR6-B20/4 is suitable for use on circuits that make use of 120/240VAC single-phase or 120/240 /277VAC three-phase electrical systems, and is UL 489 listed for branch circuit protection applications. This UL-approved circuit breaker features a thermal magnetic trip unit with a current limiting, time-delay release. It includes a built-in visible differential trip indicator and includes one, two-hole lug terminal for incoming power and out-going load. The CLS6-B20/4 is compatible with a wide range of Eaton load centers, panel boards, and switchboards, including Challenger, BR and CH load centers.