SB463RG 100A, 480/600V, 3-Phase, 4-Wire Fusible Bus Plug

Introducing the SB463RG Fusible Bus Plug from GE’s Spectra Series—a robust, 100A solution engineered for 480/600V, 3-Phase, 4-Wire power distribution. Designed for dependable protection in industrial switchgear, this bus plug enables precise fault isolation and streamlined maintenance, helping keep critical equipment up and running.

Key specifications

• Model: SB463RG
• Manufacturer: GE
• Series: Spectra Series
• Amp rating: 100A
• Voltage rating: 480/600V
• Phase / wires: 3-Phase, 4-Wire
• Type: Fusible Bus Plug

Why this fusible bus plug stands out

• Selective protection for GE Spectra switchgear: the fusible design enables fast fault isolation on each phase, helping prevent cascading outages in busy electrical rooms.
• Modular, serviceable construction: designed for field replacement within Spectra systems, minimizing downtime and simplifying maintenance planning.
• Accurate coordination with 480/600V distribution: the 100A rating supports typical motor and load circuits in commercial/industrial environments while maintaining safe, code-compliant operation.
• 4-Wire capability: supports neutral conductors for balanced loads and safer grounding in complex distribution schemes.

Ideal applications and use cases

The SB463RG is well-suited for motor control centers, switchgear assemblies, and distribution panels that run on 480V or 600V three-phase power. It fits into GE Spectra-based gear where a fusible protection element is required to provide quick clearance of faults, reduce arc flash exposure, and preserve upstream devices. Use it during new installations, retrofits, and maintenance to replace aging fusible bus plugs without overhauling entire panels.

Installation and compatibility tips

Ensure you pair the SB463RG with compatible fuse elements and confirm the panel’s bus configuration matches a 3-Phase, 4-Wire arrangement. Since this unit is part of GE’s Spectra Series, it’s designed for straightforward integration within that ecosystem, with alignment to GE’s maintenance and replacement practices. For best results, follow the system specifications for fuse type, trip characteristics, and coordination with upstream protection devices.