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F5 S4000A

The ABB F5 S4000A is a high‑current fixed‑frame low‑voltage air circuit breaker (ACB) from ABB’s legacy SACE Megamax F5 series. This type of breaker is engineered for industrial and utility electrical distribution systems, offering protection against overloads, short circuits, and faults in heavy‑duty three‑phase power installations.

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Technical Parameters Specification Details Product Type Low‑Voltage Air Circuit Breaker (ACB) Series / Model F5 S4000A (Megamax F5 series) Rated Uninterrupted Current (In) 4000 A continuous Number of Poles 3‑pole (three‑phase) Rated Operational Voltage Up to 690 V AC (standard LV distribution) Utilization Category Protection and isolation in power distribution Trip Unit / Protection Adjustable electronic or thermal‑magnetic trip units (e.g., PR1, LSIG options) Short‑Circuit Breaking Capacity High breaking capacity suitable for industrial systems (application dependent) Mounting Type Fixed installation in switchgear or panel Connection Type Bolt‑on / clamp terminals (application dependent) Standards Compliance IEC/EN 60947‑2 series (typical for LV circuit breakers) Weight & Dimensions Large industrial frame (approx. several hundred kg and ~500–600 mm per side—model dependent) Typical Operating Frequency 50 Hz / 60 Hz compatible Typical Applications Main / feeder breaker in electrical distribution, industrial power panels, protection of transformers and large loads