General Electric | SL421R | Fusible Bus Plug | 30A | 4-Pole | 240V

General Electric SL421R Fusible Bus Plug — a purpose-built solution for GE electrical systems that require a precise 30A, 4‑pole, 240V fusible bus plug. Designed for maintenance, retrofit, and replacement tasks, this part ensures you can restore safe, reliable bus distribution without guessing on compatibility. The SL421R designation is your strongest reference for matching the right component to your equipment.

Key Specifications

• Amperage: 30A
• Poles: 4-Pole
• Voltage: 240V
• Part Number: SL421R

Why this specific fusible bus plug matters goes beyond its numbers. The SL421R is engineered to align with GE’s bus plug interfaces, delivering dependable engagement with the bus system, secure electrical contact, and a form factor that fits cleanly into compatible GE panels and modules. When you’re performing maintenance, doing a retrofit, or replacing a worn component, using the exact part number minimizes guesswork and reduces the risk of compatibility issues down the line.

Who it's for: electrical technicians, industrial maintenance teams, and facilities managers who service GE-equipped panels and distribution networks that require a 240V, 4‑pole, 30A fusible plug. It’s particularly suited for installations where precise specification matching is critical to performance and safety.

Use cases and scenarios:

• Maintenance shutdowns where a safe, compatible bus plug is needed to restore service quickly.
• Retrofits that require upgrading or modernizing feeder connections without altering the panel design.
• Replacement of a degraded or failed fusible plug to re-establish reliable distribution in 240V circuits.

Important ordering note: confirm fit and ratings before purchasing. The part number SL421R is the best compatibility reference, so verify that your equipment calls for this exact model and amperage. By sticking to the correct specification, you ensure dependable operation, reduce downtime, and maintain the safety margins designed into GE’s distribution architecture.

For anyone working with GE electrical systems, the SL421R fusible bus plug represents a precise, purpose-driven choice that helps you keep multi‑pole, 240V distribution stable and compliant. If you’re unsure, recheck the equipment’s manuals or contact a qualified technician to verify the match to your panel configuration before ordering.