Square D H364NRB - 200A, 3-Pole, Fused Safety Switch

Square D H364NRB is a 200A, 3-pole fused safety switch designed to deliver safe, reliable electrical isolation in demanding industrial and commercial applications.

It provides a solid path to lockout/tagout, ensuring maintenance teams can work with confidence while the circuit remains safely de-energized. The fused design enables under-load disconnection and fast fault clearing, reducing arc-flash risk and equipment damage when something goes wrong.

Why choose this fused safety switch?

• Three-pole configuration for three-phase systems ensures balanced protection across all lines.
• 200A rating handles large feeders, motors, and processing equipment without frequent nuisance trips.
• Integrated fuse protection delivers rapid isolation at fault and smooth, predictable performance under load.
• Designed to support lockout/tagout procedures, helping facilities stay compliant during maintenance.
• Rugged construction meant for continuous operation in busy electrical rooms and industrial environments.
• Easy field wiring with straightforward disconnect and fuse access for quick maintenance or fuse replacement.

Ideal use cases

Use the Square D H364NRB in service entrances, motor control centers, and large equipment disconnects where safe energy isolation is critical. It’s well-suited for manufacturing lines, HVAC systems, industrial processing equipment, and other commercial or light-industrial applications that rely on reliable, code-compliant safety switching.

Specifications at a glance

• Amperage Rating: 200A
• Number of Poles: 3-Pole
• Product Type: Fused Safety Switch
• Brand: Square D
• Model: H364NRB

Choosing the Square D H364NRB means prioritizing personnel protection, operational continuity, and straightforward maintenance—so your teams can work with confidence, every shift.