Siemens | UV455G | Fusible Bus Plug | 400A | 600V

The Siemens UV455G Fusible Bus Plug is a robust, plug-in protection solution engineered for high-demand electrical assemblies. Rated at 400A and 600V, this unit integrates seamlessly with compatible Siemens bus systems for maintenance, retrofit, or replacement projects, delivering reliable overcurrent protection with a streamlined installation path.

Why the UV455G stands out

• High-current, compact design: A 400A rating combined with a 600V capability makes it ideal for demanding feeder protection without oversized hardware.
• Plug-in convenience: Designed for quick field upgrades and replacements, reducing downtime and simplifying service tasks in busy electrical rooms.
• Siemens-specific compatibility: Identified by part number UV455G as the most reliable reference for matching fit and ratings in compatible switchgear and bus assemblies.
• Versatile application: Suitable for maintenance, retrofit, and replacement scenarios where preserving system integrity and continuity matters.

Technical snapshot

• Amperage: 400A
• Voltage: 600V
• Part number: UV455G
• Application: Fusible bus plug for compatible Siemens bus systems

Ideal use cases

Use the UV455G when you need to add or restore fusible protection in existing Siemens panels, perform a retrofit to upgrade protection capabilities, or replace a worn-out bus plug with a model that matches your current equipment. It’s especially valuable in environments where uptime is critical and equipment is configured around Siemens bus architecture.

Installation and compatibility guidance

Before ordering, confirm fit and ratings for your specific installation. The UV455G is the clearest compatibility reference through its part number, helping you verify the exact model that matches your panel’s design and protection requirements. Installation should be conducted by qualified electrical personnel following all relevant safety standards and the equipment manufacturer’s guidelines.

Practical considerations and best practices

• Keep a spare UV455G on hand for planned maintenance or rapid replacements to minimize downtime.
• Cross-check the panel catalog or Siemens cross-reference resources to ensure the UV455G aligns with your current bus arrangement and protection scheme.
• Inspect associated bus connections for signs of wear or corrosion during replacement to maintain reliable contact and protection performance.

With its targeted design and Siemens-grade reliability, the UV455G Fusible Bus Plug provides a precise, high-current protection solution that supports efficient maintenance, thoughtful retrofit planning, and dependable replacement workflows in demanding industrial environments.