Siemens | XLVB421G | Fusible Bus Plug | 30A | 240V

The Siemens XLVB421G Fusible Bus Plug is a precise, plug‑in solution for compatible Siemens busbar assemblies, engineered to support maintenance, retrofit, and replacement projects with exacting specifications. With a 30A current rating and 240V operation, this component helps you preserve safe, reliable distribution while aligning with your existing panel architecture.

• Amperage: 30A
• Voltage: 240V
• Part reference: XLVB421G — your best compatibility check when sourcing replacements

Why this fusible bus plug stands out

• : Designed to fit Siemens busbar systems that specify the XLVB421G, minimizing guesswork during procurement and reducing the risk of mismatched components.
• Maintenance-friendly: Facilitates quick replacements in service theaters where replacing a worn or damaged bus plug keeps panels online with minimal downtime.
• Retrofitting made straightforward: When upgrading circuits or aligning with updated protection schemes, this fusible plug provides a trusted, factory‑specified interface for 30A protection at 240V.
• Reliability in protection: As a fusible plug, it is designed to integrate with protected busbar configurations to help ensure dependable overcurrent protection in distribution setups.

Ideal for electricians, panel technicians, and maintenance teams working with Siemens distribution equipment, the XLVB421G is best used in installations that require exact matching specs for safe, compliant operation. It’s the practical choice for replacement, retrofit, and routine servicing where maintaining consistent electrical protection matters most.

Usage notes: Confirm fit and ratings before ordering. The part number is the most reliable reference for compatibility, helping you source the exact component you need for your Siemens panel configuration. When installing, ensure your work complies with local electrical codes and manufacturer guidelines, and plan for safe de-energization during replacement.