Siemens UV423G - 100A, 240V, 3-Phase, Fusible Bus Plug

Engineered by Siemens for demanding power distribution, the UV423G Fusible Bus Plug delivers 100A at 240V in a compact, plug-in 3‑phase module designed for busway and panelboard systems. This rugged solution is ideal for industrial plants, commercial facilities, process equipment, and retrofit projects where compatible, hard-to-find busplugs are required to keep critical power paths protected and online.

Designed for reliability in tough environments

With a fusible design, the UV423G provides immediate overcurrent protection for feeders and panel sections, helping minimize fault impact and downtime. The unit's 3‑phase configuration aligns with typical industrial distribution schemes, simplifying integration into existing busway or panelboard layouts.

Key features

• Current rating: 100A
• Voltage: 240V
• Phasing: 3‑phase
• Type: Fusible bus plug
• Application: Busway and panelboard power distribution systems
• Industrial compatibility: Suitable for maintenance, repair, and upgrade projects seeking compatible, hard-to-find busplugs

Why it matters

Choosing a Siemens UV423G means pairing with a proven protection strategy for power feeders. The fusible element isolates faults quickly, reducing the risk of cascading failures in critical lines while enabling easier fault isolation during maintenance. For retrofit work, this unit slides into existing busway or panelboard footprints without requiring custom fabrication, saving time and reducing project risk.

Ideal for

• Maintenance teams needing a ready-to-install 100A fusible bus plug
• Retrofit projects upgrading aging distribution infrastructure
• Industrial facilities and commercial sites with Siemens-compatible busway and panelboard systems
• Process equipment feeders where reliable protection and fast service restoration are essential

Use cases

• Replacing obsolete or unavailable bus plugs in an active distribution path
• Expanding capacity on a 3‑phase busway without reworking the entire panelboard
• Spare part for on-site service vehicles to minimize downtime during outages

Specifications at a glance

• Brand: Siemens
• Model: UV423G
• Type: Fusible Bus Plug
• Amperage: 100A
• Voltage Rating: 240V
• Phase/Pole: 3-Phase