GE SB421RI - 30A, 240V, Fusible Bus Plug

Meet the GE SB421RI Fusible Bus Plug, a purpose-built solution for clean, reliable power distribution in demanding environments. At 30A and 240V, this fuse-equipped plug installs directly into GE busway and panelboard systems, delivering protection where it's needed most—right at the distribution point.

Why craftsmen and engineers choose the SB421RI

• Built for GE busway and panelboard ecosystems: Precisely engineered to fit and perform in GE power distribution architectures, reducing compatibility fuss in retrofit projects.
• Integrated fusible protection: The fusible bus plug provides overcurrent protection where circuits connect, simplifying wiring and helping protect downstream equipment.
• Optimal rating for commercial and industrial loads: 30A at 240V covers a wide range of process equipment, motors, and control circuits common in plants and facilities.
• Hard-to-find, ready-to-use: This listing focuses on compatible, replaceable busplugs when standard stock isn’t available, making maintenance and upgrades smoother.

Ideal applications

Use in industrial plants, commercial facilities, and retrofit projects where robust power distribution is required. Suitable for feeding busways or panelboards that demand reliable, localized protection and a quick, plug-in solution.

Specifications at a glance

• Brand: GE
• Model: SB421RI
• Type: Fusible Bus Plug
• Amperage: 30A
• Voltage Rating: 240V

Getting the most from your SB421RI

• Safety first: Ensure the entire panel is de-energized before installation or replacement.
• Verify compatibility: Confirm the busway or panelboard part number aligns with the SB421RI fusible plug and fuse type for your GE system.
• Installation tips: Follow GE installation guidelines for spacing, fuse elements, and secure mounting to maintain reliable contact and minimize arcing risks.
• Maintenance considerations: For retrofit or upgrade projects, plan for periodic inspection of bus plug connections and fuse status to avoid unexpected downtime.

Choose the GE SB421RI for a focused, plug-in protection solution that aligns with existing GE distribution infrastructure. It’s the practical, field-proven choice when compatible busplugs are essential for maintenance, repair, or upgrades in industrial and commercial settings.