General Electric | AC421RG | Fusible Bus Plug | 30A | 4-Pole | 240V

General Electric AC421RG Fusible Bus Plug is a purpose-built protective device engineered for GE power distribution systems that require reliable fusible protection at 30 amps, four poles, and 240 volts. This fusible bus plug enables safe, fast disconnection during fault conditions, helping you minimize downtime during routine maintenance, retrofit, or replacement projects.

• Amperage: 30A
• Poles: 4-Pole
• Voltage: 240V
• Part number: AC421RG
• Designed for: maintenance, retrofit, and replacement where matching specs are required
• Best reference for compatibility: the AC421RG part number

Why this fusible bus plug stands out

• : Matching the exact four-pole, 240V, 30A requirements ensures proper protection and reliable operation within GE switchgear and bus duct assemblies. The AC421RG is the definitive reference for identifying the correct fit.
• : When performing routine service or upgrades, this plug-in solution simplifies replacement, reducing testing time and exposure while maintaining system protection.
• : Ideal for retrofit projects to upgrade existing gear to fusible protection, as well as serving as a ready-made spare part for quick field swaps.

Use cases and scenarios

• Replacing a degraded or failed bus plug in GE power distribution equipment to restore protective coordination and uninterrupted service.
• Retrofit projects where existing gear requires a 30A, 4-pole, 240V fusible connection for added protection against faults.
• Spare-part readiness in maintenance fleets for industrial facilities, data centers, or commercial buildings with GE infrastructure.

Practical guidance for installation and safety

• Ensure the device is suitable for your GE equipment by confirming fit and ratings before ordering.
• Installation should be performed by a qualified electrical professional following applicable codes and standards.
• Power must be removed and the circuit de-energized before handling or installing the bus plug to prevent shock or equipment damage.
• Inspect connectors and mounting interfaces for cleanliness and proper seating to guarantee reliable contact at 240V and 30A ratings.

In short, the General Electric AC421RG Fusible Bus Plug is a purpose-driven, specification-matched solution for maintaining, upgrading, or replacing protective bus interfaces in GE systems. With its clear 30A, 4-Pole, 240V configuration and the definitive AC421RG reference, it delivers dependable protection, quicker maintenance cycles, and peace of mind for your critical power distribution needs.