Siemens RV423-J - 100A, 240V, Fusible, Switch

Introducing the Siemens RV423-J, a 100A, 240V fusible switch crafted for dependable on/off isolation and precise overcurrent protection in demanding industrial and commercial environments. Its compact footprint and maintenance-friendly design make it a practical, reliable choice for space-constrained installations while delivering the protection you rely on in daily operations.

Designed for motor disconnects, panelboards, and branch circuits, the RV423-J provides a definitive isolation point and robust protection that helps prevent damage from electrical faults and minimizes downtime when service is required.

Key features and benefits

• 100A, 240V fused switch — supports standard industrial loads with built-in overcurrent protection to guard equipment and wiring.
• Compact, maintainable design — a space-efficient chassis that simplifies panel installations and makes fuse changes quick and straightforward.
• Reliable isolation — rugged switch mechanism delivers a clear, secure open/closed state even under heavy use.
• Motor disconnect readiness — ideal for safely isolating motors and large drive equipment for maintenance or servicing.
• Panelboard and branch circuit protection — centralizes protection in distribution installations, helping meet safety and reliability standards.

Why this matters for your operation

When maintenance or fault conditions require isolation, the RV423-J provides a dependable, purpose-built solution that reduces risk and downtime. The fusible design adds an extra layer of protection by interrupting fault currents, safeguarding downstream equipment and wiring while keeping your system running smoothly during routine service.

Use cases

• Motor disconnects in manufacturing lines, processing equipment, and HVAC systems
• Isolation point in panelboards for safe, compliant service and maintenance
• Branch circuit protection for heavy electrical loads in commercial facilities

Maintenance tips

• Maintain a stock of compatible fuses and replace them only after powering down and applying lockout/tagout procedures.
• Periodically inspect the switch for wear or corrosion and ensure the handle operates smoothly.
• Document fuse changes and maintenance events to support safety compliance and traceability.

Choose the Siemens RV423-J for a proven, purpose-built solution that pairs industrial-grade protection with practical, day-to-day reliability for motor-driven equipment and protected circuits.