Square D H363NRB - 100A, 600V, Safety Switch

Engineered for industrial and commercial environments where safe isolation and dependable disconnection are non-negotiable, the Square D H363NRB - 100A, 600V, Safety Switch delivers robust electrical control you can trust. Designed to support proper lockout/tagout (LOTO) procedures, this safety switch helps protect maintenance personnel and minimize downtime by ensuring a clear, secure disconnection path during service and repair on energized systems.

Why the H363NRB stands out

• 100A, 600V rating provides a solid, reliable disconnect for typical motor feeders, feeders, and branch circuits in demanding facilities while accommodating the voltage levels common in industrial environments.
• Lockout/Tagout compatibility supports safe maintenance practices, enabling workers to apply locks and safety tags to prevent accidental re-energization during servicing.
• Disconnection under load delivers dependable performance even when circuits are live, reducing the risk of unexpected re-energization and improving overall downstream safety and reliability.
• Long-term durability built for steady, repeated use in busy electrical rooms and on the plant floor, helping minimize replacement cycles and maintenance overhead.
• Industrial-grade reliability designed to integrate with standard electrical distributions, panels, and switchgear, making it a practical choice for upgrading or hardening safety isolation points.

Ideal use cases

• Maintenance and service disconnects for motors, pumps, conveyors, and HVAC equipment
• Primary or secondary isolation points in commercial electrical rooms and industrial facilities
• Line-side disconnects where quick, safe de-energization is required for safety-critical operations
• Retrofits or upgrades to meet rigorous lockout/tagout procedures across machinery fleets

Practical benefits and outcomes

• Improved worker safety through reliable, clearly isolated circuits during maintenance
• Enhanced compliance with LOTO requirements, reducing administrative risk and downtime
• Clear, predictable behavior under load helps avoid surprises during servicing
• A scalable solution that fits a range of 100A distribution needs without over-building your safety infrastructure

Technical snapshot

• Amperage Rating: 100A
• Voltage Rating: 600V
• Product Type: Safety Switch
• Brand: Square D
• Model: H363NRB

Upgrade your safety architecture with the Square D H363NRB today to deliver reliable electrical isolation, support precise lockout/tagout practices, and maintain steady operations across demanding environments.