SACE E4H 40_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Parameters Parameter Specification Manufacturer ABB Series / Family SACE Emax – E4H series Product Type Low‑voltage Air Circuit Breaker (ACB) Model Code E4H 40 (frame size designation) Rated Uninterrupted Current (Iu) 4000 A Number of Poles 3P (three‑phase) and variants with 4P (incl. neutral) Rated Operational Voltage (Ue) Up to ~690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) ~12 kV Short‑Circuit Breaking Capacity (Icu) High interrupting rating (e.g., ~100 kA at 400–415 V typical) Short‑Time Withstand Current (Icw) High withstand rating (e.g., ~100 kA for 1 s) Trip Unit Compatibility Electronic trip units (e.g., LI, LSI, LSIG/PR121/P‑LSIG, PR122 etc.) Mounting Options Fixed (horizontal rear, vertical rear, front) or withdrawable Rated Frequency 50 / 60 Hz Protection Functions Adjustable overcurrent, short‑time, instantaneous and earth‑fault (depending on trip unit installed) Typical Applications Main distribution protection, feeder breaker protection in industrial/commercial power systems

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DESCRIBE

The ABB SACE E4H 40 Air Circuit Breaker is a high‑capacity low‑voltage protective device from ABB’s Emax E4H series designed for three‑phase electrical power distribution systems. It is used to protect electrical circuits against overloads, short circuits, and fault conditions, and can be configured with electronic protection trip units for adjustable protection settings. The breaker is suitable for installation in industrial or commercial switchgear, distribution panels, or power cabinets where robust protection and high interrupting capacity are required. Variants include fixed (with horizontal, vertical, or front terminals) or withdrawable mounting styles.

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