Siemens | RV421 | Fusible Bus Plug | 30A | 3-Pole | 240V

The Siemens RV421 Fusible Bus Plug is a precise, dependable solution for protecting and routing power in your electrical distribution setup. Engineered for maintenance, retrofit, and replacement projects, this 30A, 3-Pole, 240V bus plug ensures you can restore or upgrade your panel with confidence when exact specifications are required.

Why the RV421 Stands Out

• Exact 30A protection tailored for circuits that demand reliable, consistent current interruption.
• Three-pole design supports multi‑phase configurations and coordinated protection across lines.
• 250V-class operation compatible with standard 240V systems commonly used in facilities and industrial environments.
• Part number RV421 is the best reference for compatibility—use this to verify fit in your Siemens panel before ordering.
• Maintenance, retrofit, and replacement ready built to facilitate quick service and minimal downtime when upgrading or servicing existing equipment.

How It Solves Your Maintenance and Retrofit Needs

When a Siemens panel requires a fusible bus plug with matching specifications, the RV421 delivers a straightforward path to restore protection and performance. Its 30A rating and 3-pole configuration ensure you can align with your panel’s protection strategy without improvising alternative components. By anchoring your replacement decisions to the RV421 part number, you minimize compatibility risk and streamline procurement for service teams and panel builders alike.

Use Cases and Ideal Applications

• Maintenance projects: swap in a known, spec-matching fusible bus plug to maintain circuit protection integrity during routine service.
• Retrofits and upgrades: replace older or incompatible bus plugs with a Siemens-approved component to align with current safety and performance expectations.
• Replacement scenarios: when a failure or wear requires a direct, spec-consistent substitute to keep systems online with minimal disruption.
• Panel assembly and rebuilds: integrate the RV421 into new or rebuilt Siemens panels that require a 30A, 3-Pole, 240V protective plug.

Specification Snapshot

• Amperage: 30A
• Poles: 3-Pole
• Voltage: 240V
• Part Number: RV421
• Notes: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Who Should Consider This

Electrical contractors, facilities managers, panel builders, and maintenance teams handling Siemens panels that require a precise fusible bus plug with 30A, 3-Pole, 240V specifications will find the RV421 to be a reliable, standards-aligned choice. It’s particularly valuable for projects where staying aligned with Siemens’ design language and compatibility references reduces risk and accelerates procurement.