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TMA800/8000-800FF4P

The ABB SACE Tmax T6 800 TMA 800‑8000 4P FF is a 4‑pole molded case circuit breaker designed for protection and manual switching in three‑phase electrical distribution systems. It incorporates a TMA thermal‑magnetic trip unit with adjustable short‑circuit release range to protect circuits against overload, short‑circuit faults, and phase overload conditions. This breaker is suitable for industrial and commercial low‑voltage power applications, offering high breaking capacity, robust construction, and reliable performance for power distribution systems.

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Technical Parameters Parameter Specification Product type Molded Case Circuit Breaker (MCCB) Product series ABB SACE Tmax T6 Poles 4 poles (4P) Rated current (In) 800 A Trip unit type TMA (thermal‑magnetic) Short circuit release range 4000–8000 A (undelayed) Rated operational voltage (Ue) Up to 690 V AC / 750 V DC Rated insulation voltage (Ui) 1000 V Rated impulse withstand voltage (Uimp) 8 kV Breaking capacity (Ics / Icu) Examples: 70 kA @230 V AC, 36 kA @380–415 V AC (varies by system voltage) Mechanical durability ~20,000 cycles Electrical durability ~5000 cycles at rated load Mounting Panel / fixed installation with front terminals Control type Manual toggle Protection functions Overload and short‑circuit protection Ambient operating temperature Typical industrial range Degree of protection IP20 (with appropriate enclosure) Standards IEC/EN compliant for low‑voltage circuit breakers