General Electric | SL421I | Fusible Bus Plug | 30A | 3-Pole | 240V

General Electric SL421I Fusible Bus Plug is the reliable, field-ready protection component you need for maintenance, retrofit, or replacement projects. With a 30A rating, a 3-Pole configuration, and 240V operation, this fusible bus plug integrates into compatible GE switchgear to deliver fast, predictable interruption when faults occur, helping protect wiring and downstream devices.

Key Specifications

• Amperage: 30 A
• Poles: 3-Pole
• Voltage: 240 V
• Reference: Part number SL421I — best reference for compatibility

Why choose the SL421I Fusible Bus Plug

This component is purpose-built for scenarios where precise electrical protection and reliable compatibility matter. The 3-pole, 240V configuration supports three-phase systems common in commercial and industrial environments, while the 30A rating provides appropriate protection for feeders and circuits without unnecessary nuisance trips. Because the part number SL421I aligns with specific GE specifications, you’ll reduce guesswork during ordering and commissioning—simply verify that the fit and ratings match your equipment before purchase.

Ideal use cases

• Maintenance: Replace worn or degraded bus plugs to restore protective coverage without major panel changes.
• Retrofit: Update aging protection schemes by adding a fusible bus plug that aligns with GE’s design standards.
• Replacement: Quick swap-in for systems that require a 30A, 3-Pole, 240V fusible connection with a GE-compatible form factor.

Important compatibility notes

Before ordering, confirm fit and ratings align with your equipment. The part number SL421I is the best reference for compatibility, ensuring you’re selecting a unit that matches the intended GE panel or switchgear configuration and electrical characteristics.

Practical considerations

• Cross-check the panel’s documentation or wiring diagram to verify that a 30A, 3-Pole, 240V fusible bus plug is appropriate for the circuit you’re protecting.
• Handle and install according to standard safety practices for electrical protective devices; ensure power is disconnected during replacement.
• Keep a configured stock of SL421I for predictable maintenance scheduling and retrofit planning.