SB321RG 30A, 240V, 3-Phase, 3-Wire Fusible Bus Plug

SB321RG 30A, 240V, 3-Phase, 3-Wire Fusible Bus Plug from GE’s Spectra Series is purpose-built for dependable, fuse-protected three-phase power distribution. Designed to plug into compatible Spectra Series panels, this bus plug delivers reliable short-circuit protection precisely where you need it, keeping critical equipment running and reducing downtime.

Key specifications

• Current rating: 30A
• Voltage rating: 240V
• Phase: 3-Phase
• System: 3-Wire
• Type: Fusible Bus Plug
• Series: Spectra Series
• Manufacturer: GE

Why this fusible bus plug matters

In any three-phase installation, protecting conductors, motors, and drives from overcurrent is essential. The SB321RG combines robust GE engineering with a fusible link that reliably interrupts excessive current, helping prevent damage from faults and overloads. Its fusible design means you benefit from fast, predictable protection—supporting safer panel operation and smoother maintenance cycles.

Ideal applications

• Industrial motor circuits feeding conveyors, pumps, or fans in manufacturing facilities
• Three-phase distribution for HVAC equipment and large pumps in commercial settings
• Power distribution points within GE Spectra Series panels in data centers or process plants

Installation and compatibility tips

Designed for GE Spectra Series panels and compatible three-phase, three-wire bus architectures, the SB321RG should be installed by qualified personnel with the power fully de-energized. Verify 240V three-phase availability and ensure the bus plug aligns with the designated fuse sources in the Spectra system. After installation, perform standard electrical checks to confirm proper seating and contact integrity, then restore power and verify circuit operation.

Benefits that set it apart

• Specifically matched to GE Spectra Series panels for reliable fit and performance
• Clear 30A current rating provides targeted protection for motor and load circuits
• 3-phase, 3-wire configuration aligns with common industrial power distributions
• Fusible design offers rapid fault isolation to protect downstream equipment

Practical guidance for you

• Keep a spare SB321RG fusible link on hand to minimize downtime during maintenance or fuse changes
• Document part usage with the SB321RG part number for easy reordering within Spectra Series inventories
• When in doubt, consult GE Spectra Series documentation to confirm panel compatibility and wiring requirements