General Electric | SB421RGIP | Fusible Bus Plug | 30A | 240V

Designed by General Electric, the SB421RGIP Fusible Bus Plug is a purpose-built protective component for GE electrical distribution systems. With a 30A, 240V rating, it supports maintenance, retrofit, and replacement projects where exact specifications matter. This fusible bus plug provides a reliable, factory-matched interface between the feeder bus and protective circuit, enabling clean disconnection under fault conditions and helping minimize downtime.

Key Specifications

• Amperage: 30 A
• Voltage: 240 V
• Part number: SB421RGIP
• Type: Fusible bus plug

Why it matters

The fusible bus plug is the protective link that safeguards conductors and downstream devices by opening the circuit when overcurrent occurs. For maintenance or retrofit work, using a matching GE plug ensures electrical characteristics remain within design tolerances, preserves system integrity, and supports reliable long-term performance.

Fit, Compatibility, and Installation Tips

Important: Confirm fit and ratings before ordering. The part number SB421RGIP is the best reference for compatibility with GE panels. To ensure correct installation:

• Verify the panel model and bus configuration to match the SB421RGIP design.
• Ensure the circuit being protected is appropriate for a 30A, 240V rating.
• Power down the equipment and follow proper safety procedures before replacement.
• Use only the specified fusible bus plug to maintain electrical safety and warranty terms.
• If there is any uncertainty about compatibility, consult a licensed electrician.

Ideal Use Scenarios

This fusible bus plug is well-suited forGE panel maintenance, retrofit projects that require precise protection alignment, and straightforward replacement when a fusible plug has degraded or failed. It’s a targeted, dependable solution for technicians seeking a factory-compatible component that fits within existing GE panel architectures.