GE SL421R - 30A, 240V, Fusible Bus Plug

GE SL421R Fusible Bus Plug delivers dependable, plug-in protection for demanding industrial and commercial power distribution. Designed for 30A, 240V circuits, this fusible bus plug integrates seamlessly into busway and panelboard systems, enabling rapid fault isolation and controlled power flow where it’s needed most.

What makes the GE SL421R stand out

As a GE-branded solution, the SL421R is built for the rigors of daily operation in factories, processing plants, and large facilities. Its fusible design provides immediate circuit protection and simplifies maintenance by allowing the plug to be replaced or swapped during planned outages or quick responses to faults. The 30A, 240V rating matches a wide range of distribution configurations, making it a versatile choice for retrofit projects and upgrades where compatible, hard-to-find busplugs are required.

Key specifications

• Brand: GE
• Model: SL421R
• Type: Fusible Bus Plug
• Amperage: 30A
• Voltage: 240V
• Applications: Busway and panelboard power distribution systems

Who should consider the GE SL421R?

Maintenance and operations teams at industrial plants, commercial facilities with complex power distribution, process equipment operators, and engineers undertaking retrofit projects will find the SL421R particularly valuable. If you manage spare parts for aging or niche bus plug configurations, this model helps you keep downtime to a minimum with a compatible, easy-to-source option.

Practical use cases

• Retrofits: Replace legacy, hard-to-find bus plugs with a modern, readily available GE SL421R to restore protected distribution without rewiring.
• Maintenance: Stock as a ready-to-deploy spare to reduce outage time when a fusible bus plug needs replacement.
• Upgrade projects: Upgrade busway or panelboard configurations to include fusible protection where current-sharing and isolation are critical.

Installation and care tips

Ensure compatibility with your busway or panelboard system before installation. Follow standard safety procedures for de-energizing and handling fusible components. When in service, periodically inspect fusible elements and connections for signs of wear or overheating, and replace components promptly to maintain protection integrity.

Why choose GE SL421R for your power distribution needs?

Beyond the numbers, this bus plug represents a reliable, factory-backed solution from GE, designed to deliver predictable protection and quick serviceability in environments where downtime costs money. It’s an ideal fit for teams that value availability, safety, and compatibility with existing GE-based infrastructure.