The Siemens Sentron SXID4640 is a high-performance fusible bus plug engineered for seamless integration with SENTRON busway systems, providing reliable overcurrent protection for branch circuits in commercial and industrial installations. Designed for 3-phase, 4-wire applications, this unit supports up to 200 A at 600 V AC and features a high interrupting capacity of 200 kA at 480 V, ensuring safe and dependable operation under demanding conditions.
Features & Benefits:
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Fusible Protection: Accepts R, H, or K-class fuses for precise overcurrent safeguarding.
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Compact, Modular Design: Plug-in construction allows for easy installation and scalable power distribution.
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Durable and Reliable: Built to withstand industrial environments and heavy-duty usage.
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Optimized for Busway Systems: Ensures efficient, code-compliant integration with Siemens SENTRON bus ducts.
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Versatile Application: Ideal for motors, panelboards, and critical branch circuits in industrial and commercial facilities.
The SXID4640 enables safe, efficient, and flexible power distribution, combining Siemens’ proven engineering with a design that supports both maintenance-friendly installation and long-term operational reliability.













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