Westinghouse DA 50 1200A MO DO LS Air Circuit Breaker, Manual operator (MO) and electrical operator (DO), LS (long-time, short-time) trip unit, Line and load terminal connectors, Arc chutes and interrupters, Control wiring harness, Racking mechanism or mounting cradle (if applicable), Test or calibration certificate (if included), User manual and installation guide, Safety and compliance documentation, Manufacturer warranty card, Original Westinghouse packaging