5S4000 R4000 AR1/LI WMP 3P NST_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Parameters Parameter Specification Product Name ABB 5S4000 R4000 AR1/LI WMP 3P NST Air Circuit Breaker Product Type Low‑Voltage Air Circuit Breaker (ACB) Series / Family ABB SACE 5S (5‑series) Rated Current (In) 4000 A Rated Uninterrupted Current (Iu) 4000 A Number of Poles 3‑pole (3P) Mounting Type Withdrawable Moving Part (WMP) Protection Unit AR1/LI electronic protection unit Protection Functions Adjustable overload and short‑circuit protection Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) Typically 12 kV Short‑Circuit Breaking Capability High breaking capacity suited for industrial distribution (dependent on configuration) Control & Indicators Breaker position and trip indication Auxiliary Contacts Available for status feedback Standards Compliance IEC low‑voltage circuit breaker standards Typical Use Main distribution protection and feeder switching in industrial/utility systems

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DESCRIBE

The ABB 5S4000 R4000 AR1/LI WMP 3P NST is a low‑voltage air circuit breaker (ACB) designed for heavy‑duty electrical distribution and protection in industrial and commercial power systems. It belongs to ABB’s 5S series, supporting a continuous rated current of 4000 A in a three‑pole (3P) configuration. The breaker is built with a withdrawable moving part (WMP) format, enabling easy insertion and removal from compatible switchgear frames for maintenance and operation.

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