General Electric C440LSIGPMR 4000A Circuit Breaker

Meet the General Electric C440LSIGPMR 4000A Circuit Breaker — a purpose-built protective device designed for high-demand electrical systems. With a current rating of 4000 A, this GE circuit breaker delivers robust overcurrent protection for large feeders, main circuits, and critical industrial loads. Identified by the OEM part number C440LSIGPMR, it’s a precise replacement option that ensures seamless compatibility with GE panel architectures.

Key advantages you’ll notice in real-world applications

• High-current protection: 4000 A rating supports heavy industrial feeders and main distribution paths, helping to safeguard equipment from overloads.
• Reliable OEM performance: As an authentic General Electric part (C440LSIGPMR), it’s engineered to align with GE panels, terminations, and trip characteristics for predictable operation.
• Streamlined maintenance and replacements: Ordering and replacing the exact part number simplifies service records and future maintenance, keeping your system aligned with manufacturer specifications.
• Clear traceability: The defined part number and rating provide quick validation during audits, maintenance planning, and safety inspections.
• Versatile industrial fit: Well-suited for commercial facilities, large-scale manufacturing, data centers, and other environments that require robust high-current protection.

Practical use cases and scenarios

• Feeder protection in large electrical rooms where heavy machinery, conveyors, or MCCs draw substantial current.
• Main circuit protection in facilities with high-demand equipment, ensuring quick response to faults at 4000 A.
• Backup or protection layers in data centers or processing plants where reliable overcurrent protection is essential for uptime.
• OEM replacement in GE-configured switchgear or panel assemblies to maintain warranty and performance integrity.

Installation and maintenance guidelines

• Verify panel compatibility with C440LSIGPMR and confirm bus bar and termination requirements before installation.
• Follow GE installation manuals for terminal sizes and conductor terminations to ensure secure, compliant connections.
• Perform installations with the system de-energized, adhering to local electrical codes and safety standards; use appropriate PPE and lockout/tagout procedures.
• Label the device clearly in your maintenance logs to simplify future servicing and audits.

Why choose an OEM part over aftermarket substitutes

• Guaranteed compatibility with GE panels and architecture, preserving intended performance characteristics.
• Consistent reliability aligned with General Electric design and manufacturing standards.
• Streamlined warranty coverage and service support when needed, backed by GE’s parts ecosystem.