GE SB421RG - 30A, 240V, Fusible Bus Plug

GE SB421RG is a 30A, 240V fusible bus plug engineered to deliver reliable power distribution in demanding industrial and commercial settings. This GE component is designed to plug into busway and panelboard systems, providing integrated overcurrent protection and a streamlined path for power distribution. It’s an ideal solution for maintenance, repair, and upgrade projects where compatible, hard-to-find busplugs are required.

Why the GE SB421RG stands out

• Integrated fusible protection: Simplifies protection schemes and improves fault isolation within busway and panelboard configurations, helping to minimize downstream impact during faults.
• Standard 30A at 240V: Aligns with common industrial and commercial circuits, offering dependable performance for everyday loads and equipment protection.
• Plug-in compatibility: Specifically designed for GE busway and panelboard systems, enabling quick, field-ready replacements during maintenance windows.
• Reliability for retrofit projects: Built to support upgrades and modernizations where compatible, hard-to-find busplugs are required—reducing downtime and risk.
• Genuine GE part: Ensures correct fit, electrical coordination, and long-term availability for ongoing maintenance planning.

Ideal use cases

• Replacing a failed or outdated bus plug in existing GE busway or panelboard installations.
• Retrofit projects in industrial plants and commercial facilities that require a precise 30A/240V fusible plug.
• Maintenance inventories for critical process equipment and distribution systems to minimize downtime during outages.
• Upgrade scenarios where a compatible, hard-to-find busplugs solution is essential for preserving protection schemes.

Specifications at a glance

• Brand: GE
• Model: SB421RG
• Type: Fusible Bus Plug
• Amperage: 30A
• Voltage Rating: 240V
• Applications: Busway and panelboard power distribution systems
• Typical Use: Industrial plants, commercial facilities, process equipment, retrofit projects
• Best for: Maintenance, repair, and upgrade projects needing compatible, hard-to-find busplugs

Installation and practical considerations

Designed to integrate with GE busway and panelboard systems, the SB421RG offers a straightforward path to re-establishing protected power channels with minimal disruption. When planning replacement or retrofit work, verify fit with your specific GE busway series and panelboard frame, and ensure correct fuse ratings are used to maintain coordinated protection. Keeping a genuine GE SB421RG on hand as a spare can significantly reduce downtime during critical maintenance windows.