General Electric | AC421N | Fusible Bus Plug | 30A | 3-Pole | 240V

Meet the General Electric AC421N Fusible Bus Plug — a purpose-built, ready-to-install component designed to keep your electrical distribution running safely and efficiently. Engineered for maintenance, retrofit, and replacement, this 30A, 3-pole, 240V fusible bus plug delivers dependable protection exactly where you need it in compatible GE panels. Built with GE’s trusted standards, it’s a precise match for projects that require a direct part reference, minimizing guesswork and downtime.

Key specifications

• Amperage: 30A
• Poles: 3-Pole
• Voltage: 240V
• Type: Fusible Bus Plug
• Manufacturer: General Electric
• Part reference: AC421N

Why this fusible bus plug matters

• Exact-fit design: The AC421N is specified to align with GE panel configurations, reducing the risk of compatibility issues during servicing.
• Protection you can trust: Fusible bus plugs are a critical component for interrupting fault currents, helping protect downstream equipment and wiring.
• Streamlined maintenance: When replacements are needed, using the correct 30A, 3-pole, 240V plug minimizes setup time and potential rework.
• Long‑term reliability: GE’s engineering ensures consistent performance under typical industrial and commercial electrical loads.

Ideal use cases

• Maintenance cleanups in aging GE panel setups that require a fusible bus plug replacement.
• Retrofits where a 30A, 3-pole, 240V fusible plug is specified to upgrade protection schemes.
• Spare-part inventory for facilities that rely on GE panel systems and must maintain rapid replacement capability.

Compatibility and installation tips

Before ordering, confirm fit and ratings against your panel’s specifications. The part number AC421N is the most reliable reference for compatibility, ensuring you’re selecting the exact GE fusible bus plug your system requires. When handling and replacing components in energized equipment, follow all safety procedures and consult a licensed electrician for installation if you’re unsure about any step.

Safety, handling, and maintenance

• Store and handle in a clean, dry environment to preserve contact integrity.
• Always de-energize equipment and follow lockout/tagout procedures before replacement or inspection.
• Inspect for signs of wear or damage during routine checks and replace promptly to maintain system protection.