Square D H223NRB - 100A, 240V, 2-Pole, Safety Switch, NEMA 3R

Designed to withstand demanding industrial and commercial environments, the Square D H223NRB is a robust 100A, 240V, 2-pole safety switch with a NEMA 3R enclosure. It delivers reliable on/off isolation paired with overcurrent protection, making it an essential component for safe, code-compliant electrical systems in outdoor or wet-adjacent locations.

Key advantages of the H223NRB include:

• Reliable isolation and protection—precise on/off control coupled with dependable overcurrent protection keeps motors and branch circuits safely separated when service or maintenance is required.
• NEMA 3R weather resistance—built to handle exposure to rain, dust, and temperature variations, so you can deploy it outdoors or in challenging environments without compromising safety.
• Compact, 2-pole design—a streamlined footprint that fits neatly into electrical rooms, panelboards, or restricted spaces while delivering full 100A capacity.
• Versatile motor and circuit disconnect—an ideal choice for motor disconnects, panelboard protection, and branch circuits where a durable, easy-to-maintain switch is required.
• Easy maintenance and serviceability—engineered for straightforward installation and accessibility, reducing downtime during inspections or replacements.

Specifications at a glance

• Model: H223NRB
• Amperage: 100A
• Voltage: 240V
• Poles: 2-Pole
• NEMA Rating: NEMA 3R

Who benefits most

This safety switch is ideal for electrical installations where dependable isolation is critical: outdoor equipment enclosures, HVAC control panels, outdoor pump stations, and any application requiring a compact disconnect that stands up to the elements while protecting personnel and equipment.

Why it matters in your setup

Choosing the H223NRB means investing in a durable, code-appropriate solution that simplifies compliance, reduces maintenance complexity, and minimizes downtime. Its 2-pole design provides robust protection for both hot and neutral lines, ensuring safety during routine service and in fault conditions.

Practical tips for use

• Plan for accessibility: install in a location that allows quick and safe disconnection during routine maintenance or emergency shutoffs.
• Pair with appropriate wiring and guarding to meet local codes and standards for outdoor or damp environments.
• During installation, verify that the enclosure remains weather-tight and that all fasteners are properly torqued to manufacturer guidelines.

For reliable, weather-ready electrical isolation and protection in a compact package, the Square D H223NRB 100A, 240V, 2-Pole Safety Switch with NEMA 3R enclosure stands out as a practical, durable choice that supports motor disconnects, panelboards, and branch circuits with confidence.