H363NRB - 100A, 3-Pole, Heavy-Duty, Fusible, Safety Switch

Introducing the H363NRB, a 100A, 3-Pole, Heavy-Duty Fusible Safety Switch built to endure demanding industrial and commercial environments. This rugged safety switch delivers reliable on/off isolation combined with integrated overcurrent protection, helping keep equipment safe and downtime to a minimum.

With a true 3-Pole configuration, the H363NRB disconnects all phases together for safe servicing, ensuring a dependable isolation point in control panels and switchgear. Its fusible design provides coordinated overcurrent protection within a single enclosure, simplifying wiring and helping to conserve panel space. When protection is needed, the fuse elements engage quickly to shield the circuit, and normal operation resumes once maintenance is complete.

Ideal applications and scenarios

• Motor disconnects in manufacturing lines and equipment rooms
• Panelboards and feeders needing compact, integrated protection
• Branch circuit protection in commercial and industrial installations
• Space-constrained control panels where a robust, maintainable safety switch is required

What makes the H363NRB stand out

Designed for reliability in high-demand settings, this heavy-duty safety switch combines disconnection and protection in a single unit, reducing wiring complexity and panel footprint. Its rugged construction is purpose-built to withstand the rigors of real-world industrial use, delivering consistent performance where it matters most.

Key specifications

• Model: H363NRB
• Amperage: 100A
• Poles: 3-Pole
• Duty: Heavy
• Fused: Fusible

Maintenance and practical tips

• Ensure fuse elements are appropriate for the circuit’s full-load current and startup characteristics; replace with the correct fuse type and rating when needed.
• Regularly inspect the enclosure and connections for signs of wear, corrosion, or looseness to maintain reliable protection.
• Plan for spare fuses on site and follow proper safety procedures during servicing to minimize downtime.