Technical Specifications Specification Typical Value Manufacturer ABB Model / Part Number T6S800 PR222DS/P‑LSI R800 3P Product Type Molded Case Circuit Breaker (MCCB) Series Tmax T6 Number of Poles 3 (three‑pole) Rated Uninterrupted Current (Iu) 800 A Rated Operational Voltage Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V Rated Impulse Withstand Voltage (Uimp) 8 kV Trip Unit PR222DS/P‑LSI (electronic long‑time, short‑time, instantaneous) Short‑Circuit Performance Level S Rated Service Short‑Circuit Breaking Capacity (Ics) 85 kA @ 220–230 V AC (typical) / 50 kA @ 380–415 V AC / 16.5 kA @ 690 V AC Rated Ultimate Short‑Circuit Breaking Capacity (Icu) 85 kA @ 220–230 V AC; 50 kA @ 380–415 V AC; 22 kA @ 690 V AC Rated Impulse Withstand Voltage 8 kV Power Loss Approx. 32 W per pole under rated conditions Connection Type Fixed front terminals Electrical Durability ~5000 operations Mechanical Durability ~20,000 operations Standards Compliance IEC 60947‑2 and related industrial circuit breaker standards Mounting Style Fixed installation in switchboards / panels Typical Applications Main and distribution circuit protection in commercial, industrial electrical systems