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T6N800 DC TM4800 FF 4P

The ABB T6N800 DC TMA800‑8000 4P FF is a low‑voltage molded case circuit breaker (MCCB) from ABB’s Tmax T6N series designed for electrical protection and switching in industrial and commercial power systems. It is rated for 800 A continuous current and features a thermal‑magnetic (TMA) trip unit providing combined overload and short‑circuit protection in a compact fixed frame.

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Technical Parameters Parameter Specification Product Name ABB T6N800 DC TMA800‑8000 4P FF MCCB Product Type Molded Case Circuit Breaker (MCCB) Series / Family ABB SACE Tmax T6N Rated Current (Iₙ) 800 A Number of Poles 4 (3 phases + neutral) Mounting Type Fixed (Fixed Front terminals) Trip Unit Type Thermal‑Magnetic (TMA) Protection Functions Overload and short‑circuit protection Rated Operational Voltage Up to ~690 V AC (typical) Rated Insulation Voltage (Uᵢ) 1000 V AC Rated Impulse Withstand Voltage (Uimp) ~8 kV Short‑Circuit Breaking Capacity Depends on voltage: • ~36 kA at 380–415 V AC • ~25 kA at 500 V AC • ~15–20 kA at 690 V AC (typical) DC Capability With appropriate configuration; e.g., several kA at 250–750 V DC (multiple poles in series) Rated Uninterrupted Current (Iᵤ) 800 A Terminal Connection Front‑access fixed terminals Standards Compliance IEC 60947‑2 (and UL/CSA versions on some variants) Typical Application Protection and switching in power distribution, industrial panels, motor control centers