FJ100A-SI - 100A, Disconnect Switch

Meet the FJ100A-SI - a rugged 100A disconnect switch designed for reliable on/off isolation and overcurrent protection in demanding industrial and commercial environments. This robust fusible switch combines protection and control in one compact package, helping you keep critical circuits safe while minimizing panel clutter.

• Model: FJ100A-SI
• Amperage: 100A
• Configuration: Fusible disconnect switch for integrated protection and simple maintenance
• Ideal for: motor disconnects, panelboards, and branch circuit protection where space and serviceability matter
• Design focus: compact form factor with maintenance-friendly accessibility
• Environment: built to perform in demanding industrial and commercial settings

The FJ100A-SI stands out by delivering both reliable isolation and overcurrent protection in a single, easy-to-service unit. Its compact footprint fits tight control panels without compromising performance, making it an attractive choice when space is at a premium and uptime is non-negotiable.

Why this fusible disconnect switch matters

• Consolidates protection and disconnection, reducing wiring complexity and inventory needs
• Maintenance-friendly design with straightforward fuse access to shorten downtime during routine service or fuse replacement
• Reliable performance for motor circuits and other branch protections, helping prevent damage from overloads

Use cases and practical guidance

• Install in motor control centers or adjacent to large motors to provide rapid, safe isolation during maintenance
• Integrate into panelboards to isolate specific circuits while keeping other sections live
• Choose in spaces where a compact, durable switch is essential for ongoing protection and easy serviceability

Practical tips for optimal performance: select the correct fuse type and rating that align with the 100A rating and your load profile, position the switch for easy access, and schedule periodic inspections of connections and fuse elements to sustain reliability.