Square D HU363RB - 100A, 600V, Safety Switch

Designed for demanding industrial and commercial environments, the Square D HU363RB Safety Switch delivers safe electrical isolation with unwavering reliability. Built to endure daily operation and routine maintenance, this disconnector supports proper lockout/tagout (LOTO) procedures and guarantees dependable disconnection under load when it matters most.

Why the HU363RB stands out

• 100 Ampere rating, 600 Volt capacity: Ready to handle demanding panel and feeder applications while providing robust protection for personnel and equipment.
• Safe isolation you can trust: A purpose-built safety switch that ensures a clean, controllable disconnect so maintenance work can proceed with confidence.
• LOTO compatibility: Designed to integrate smoothly with standard lockout/tagout practices, helping facilities stay compliant and safer during service intervals.
• Durable, long-term performance: Built for repeated operations in challenging environments, delivering consistent disconnection and reliable service life.
• Trusted Square D lineage: Part of the Square D family, ensuring compatibility with related components, accessories, and control systems.

Ideal use cases

The HU363RB is purpose-built for installations requiring reliable isolation and safe maintenance access. Typical applications include:

• Industrial and commercial control panels where equipment needs to be safely shut off for servicing.
• Service disconnects at electrical rooms and machine enclosures requiring clear, lockable isolation points.
• Systems that operate under load and demand a dependable disconnection mechanism to minimize downtime during maintenance.

How it benefits your operation

Investing in the HU363RB translates to measurable safety and efficiency gains. Technicians can lockout the switch securely, minimizing the risk of accidental re-energization. The straightforward operation and durable construction reduce maintenance headaches and extend the life of your electrical infrastructure, keeping critical systems online while safeguarding personnel.

Practical guidance for deployment

• Match the switch to compatible enclosures and mounting arrangements designed for 100 A, 600 V systems.
• Plan LOTO tagging workflows around the HU363RB to maximize safety during routine service and inspections.
• Schedule periodic functional checks to verify clean disconnection under load and ensure smooth operation after maintenance.

Specifications at a glance

• Amperage rating: 100 A
• Voltage rating: 600 V
• Product type: Safety Switch
• Brand: Square D
• Model: HU363RB