SB423RG 100A, 240V, 3-Phase, 4-Wire Fusible Bus Plug

The SB423RG is a GE Spectra Series fusible bus plug engineered to bring robust, protected power to 3-phase, 4-wire systems. With a 100A rating at 240V, this bus plug is designed to slot into industrial distribution panels and switchgear where reliable fault protection and quick isolation are essential.

Key benefits

• 100 Amp continuous rating for mid-to-high demand equipment
• 240-volt operation for standard 3-phase, 4-wire systems
• Fusible design provides integrated short-circuit protection at the distribution point
• 3-Phase, 4-Wire configuration supports balanced motor loads and neutral return paths
• Part of GE's Spectra Series for consistent interfaces, trusted performance, and straightforward compatibility with existing Spectra-based distribution setups

Why this matters

In industrial environments, protecting motors, drives, and other 3-phase loads is essential to preventing costly downtime. The SB423RG places protective fusing at the bus plug level, enabling rapid disconnection during faults and simplifying maintenance planning since you can isolate a single segment without powering down the entire panel.

Ideal use scenarios

• Power distribution in manufacturing lines where 3-phase equipment, conveyors, and pumps run off a 240V, 4-wire supply
• HVAC and elevator systems in facilities that require reliable, protected bus connections
• Data center or telecom rack environments with mixed 3-phase loads needing precise protection and easy swap-out
• Replacement or upgrade projects within GE Spectra Series installations to maintain system integrity

Installation and compatibility

Designed for compatibility with GE Spectra Series bus architectures, the SB423RG ensures a seamless fit with existing bus plugs and distribution components. For best results, pair this fusible bus plug with matching fusing elements and follow standard industrial electrical practices for 3-phase, 4-wire assemblies. As with all high-power distribution equipment, installation by qualified electrical personnel is recommended.

Maintenance tips

• Inspect fuses and connections regularly for signs of overheating or corrosion
• Replace fusible elements only with the same rating and type to maintain protection levels
• Verify voltage and phase configuration prior to energizing after maintenance or upgrades