ITE SP421 - 30A, 240V, 3-Phase, Fusible Bus Plug

The ITE SP421 Fusible Bus Plug is a durable, mission-critical solution designed to keep industrial and commercial power systems running smoothly. With a 30A, 240V, 3-Phase configuration, this bus plug delivers dependable distribution within busway and panelboard setups, making it a trusted choice for demanding environments.

• Model: SP421
• Type: Fusible Bus Plug
• Amperage: 30A
• Voltage: 240V
• Phase / Poles: 3-Phase
• Brand: ITE
• Application: Busway and panelboard power distribution systems

Why this matters in real-world settings
In busy facilities, downtime is costly. The SP421 is engineered to slot into existing busway and panelboard layouts to quickly restore or reconfigure power distribution without the need for extensive rewiring. Its fusible design provides a targeted protection point, helping to isolate faults and protect critical equipment while keeping the rest of the system energized.

Ideal applications

• Industrial plants needing reliable, scalable 3-phase power distribution
• Commercial facilities undergoing equipment retrofits or capacity upgrades
• Process equipment installations where robust, compatible bus plugs are essential
• Maintenance, repair, and upgrade projects requiring compatible, hard-to-find busplugs

What sets the SP421 apart

• Built to withstand industrial and commercial use cases where consistent power delivery matters.
• Designed to integrate with existing busways and panelboards that support 3-Phase 240V configurations.
• A practical, maintainable solution when standard parts aren’t readily available.

Practical tips for use

• Verify system compatibility with your busway and panelboard before installation, and confirm fuse type and rating requirements for your specific application.
• Keep a spare SP421 on hand for planned maintenance or retrofit projects to minimize downtime.
• Use in scenarios where rapid isolation of a circuit is beneficial to protect equipment and maintain overall system uptime.