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E4S4000 PR121/P LSIG 3P 4000A

The ABB E4S4000 PR121/P-LSIG 3P 4000A is a high-performance, low-voltage circuit breaker designed for industrial power distribution systems. It is part of ABB’s E4 series, which is known for providing reliable protection and control of electrical systems in critical applications. This model offers advanced protection for overload, short-circuit, and earth faults through its PR121/P-LSIG electronic trip unit. The E4S4000 is ideally suited for high-current applications and heavy-duty environments, where safe and efficient power distribution is crucial.

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Parameters: Model Number: ABB E4S4000 PR121/P-LSIG 3P 4000A Rated Current (In): 4000 A Number of Poles: 3P (three-phase) Rated Voltage: 690 V AC (commonly used in industrial low-voltage systems) Breaking Capacity (Icu): 65 kA at 415 V AC Protection Type: PR121/P-LSIG electronic trip unit Trip Unit Features: Long-time (L) Protection: Adjustable from 1.0 to 10 times rated current. Short-time (S) Protection: Adjustable from 3 to 12 times rated current. Instantaneous (I) Protection: Adjustable for quick response to short-circuit conditions. Earth Fault Protection (optional): For sensitive ground fault protection. Mounting Type: Fixed or draw-out (depending on application and requirements) Mechanical Life: 20,000 operations at rated current Electrical Life: 10,000 operations at rated current Temperature Range: -5°C to +50°C Protection Class: IP20 (for indoor use; optional enclosures can be used for harsher environments) Auxiliary Contacts: Available for remote signaling and control. Shunt Trip / Undervoltage Trip: Optional, for remote trip functionality and over-voltage protection. Energy Efficiency: Typically 97% efficiency, ensuring minimal energy loss. Communication: Compatible with Modbus RTU and other industrial communication protocols (optional).