T3N250 TMD200/2000 FF 3P_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Parameters Parameter Specification Product type Molded Case Circuit Breaker (MCCB) Product family ABB SACE Tmax XT / T3N250 Poles 3 poles Version FF – Front Fixed Terminals Trip unit type TMD (Thermo‑magnetic) Adjustable instantaneous short‑circuit setting Up to 2000 A Rated uninterrupted current 250 A frame (breaker size) Rated operational voltage Up to 690 V AC / 500 V DC Rated insulation voltage (Ui) 800 V AC Rated impulse withstand voltage (Uimp) 8 kV Rated service short‑circuit breaking capacity (Ics) 50 kA @ 220–240 V AC, 36 kA @ 380–415 V AC, lower ratings at higher voltages (typical values) Rated ultimate short‑circuit breaking capacity (Icu) Similar long‑circuit capacity depending on voltage level Mechanical durability ~25,000 operations Electrical durability ~8,000 operations Rated frequency 50 / 60 Hz Standards IEC 60947‑2 compliant Mounting Fixed panel installation Terminal type Front fixed with bolt connections Typical applications Industrial/commercial power distribution, feeder protection, control panels

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DESCRIBE

The ABB XT3N 250 TMD 200‑2000 3P FF is a three‑pole molded case circuit breaker (MCCB) from ABB’s SACE Tmax XT/T3N series, designed for protection and manual switching in industrial and commercial low‑voltage power systems. It features a thermo‑magnetic (TMD) trip unit with adjustable instantaneous/short‑circuit setting up to 2000 A, delivering reliable protection against overload and short‑circuit faults. The breaker’s front fixed terminals simplify panel mounting and wiring, and its robust design ensures dependable performance in power distribution and feeder protection applications.

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