Square D HU361NRB 30A 3P 600V Safety Switch, NEMA 3R, Fusible, Non-Fusible | AmpState

Meet the Square D HU361NRB safety switch—a rugged, point-of-use disconnect designed for everyday electrical maintenance and isolation tasks. This 30A, 3-pole unit is built to keep equipment safe during servicing, with an outdoor-ready NEMA 3R enclosure that stands up to the elements while delivering dependable performance in both indoor and outdoor installations.

Key specifications

• Amperage: 30 A
• Poles: 3
• Voltage: 600V
• enclosure: NEMA 3R-rated
• Configurations: Fusible and Non-Fusible options available
• Brand: Square D
• Part: HU361NRB

What sets it apart

This safety switch is more than a simple disconnect. It serves as a reliable, at-the-point-of-use isolation solution that maintenance teams and panel builders can rely on. Its fusion-capable design (Fusible) provides integrated overcurrent protection when required, while the Non-Fusible configuration offers a straightforward mechanical disconnect for simple isolation. The HU361NRB is purpose-built for direct part-number matching, making it the dependable choice when precision sourcing matters in spare inventories and construction projects. AmpState carries this model, ensuring you can source the exact unit you need without guesswork.

Ideal use cases

• Equipment shutdowns for routine maintenance in industrial, commercial, and utility environments
• Point-of-use isolation for service technicians during troubleshooting or repair work
• Panel fabrication and electrical assembly where a precise 3P, 30A, 600V safety switch is required
• Spare inventory for maintenance shops and service fleets to minimize downtime

Why choose this configuration

The HU361NRB’s dual configuration approach (fusible and non-fusible) gives you flexibility to align with your protection strategy. If you need built-in overcurrent protection, the fusible option streamlines wiring and protection coordination. If you’re simply isolating a circuit for maintenance, the non-fusible configuration provides a robust disconnect without modifying protection devices upstream. This versatility makes it suitable for a wide range of systems and installation scenarios.

Practical guidance and support

Not sure which configuration fits your system? Our team at AmpState can help confirm compatibility and ensure you’re selecting the exact part you need. We’re ready to assist with part-number matching and technical questions so you can order with confidence.

Availability

The Square D HU361NRB is available through AmpState. If you’re stocking these for ongoing service needs or as a direct replacement, this part provides a dependable, part-number-consistent option that reduces guesswork during procurement.

Ready to ensure safe, reliable isolation in your electrical system? Add the HU361NRB to your cart and rely on Square D’s proven build quality for long-lasting performance at 600V and with 3 poles. If you need help confirming fit, send us a message and we’ll verify compatibility for you.