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T6H 630 PR221DS-I R630 F F 3P

The ABB T6H 630 PR221DS‑I is a fixed‑type molded case circuit breaker designed for industrial and commercial electrical power distribution. It combines a robust breaker frame with a PR221DS‑I electronic trip unit that offers reliable protection and adjustable settings for overload, short‑time and instantaneous fault conditions. The breaker is suitable for protecting feeders, motors, and distribution circuits up to 630 A and is engineered to meet IEC standards for safety and performance. It features front‑mounted bolt‑on connections for easy installation.

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Key Specifications Specification Value / Description Product Name ABB T6H 630 PR221DS‑I 3P MCCB Manufacturer ABB Series / Family SACE Tmax T6 Order Code 1SDA060247R1 Rated Current (In) 630 A Poles 3 (three‑phase) Trip Unit Type Electronic trip unit PR221DS‑I Rated Operational Voltage Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) 8 kV Rated Service Breaking Capacity (Ics) up to 70 kA @ 400 V AC (application dependent) Rated Ultimate Breaking Capacity (Icu) up to ~70 kA @ 400 V AC; lower at higher voltages Pole Connection Type Fixed with front terminals Connection Style Bolt connection Performance Level H (high breaking performance) Mechanical Durability ~20,000 cycles Electrical Durability ~7,000 cycles Power Loss per Pole ~20 W at rated conditions Protection Roles Overload, short‑circuit, instant fault protection Standards IEC / EN molded case circuit breaker standards Degree of Protection IP20 (typical enclosure)