Square D D223NRB - 100A, Disconnect Switch

The Square D D223NRB 100A Disconnect Switch is built for industrial and commercial settings where safe electrical isolation is non-negotiable. With a 100-amp rating, this disconnect switch provides a dependable point of isolation for feeders and equipment, while enabling proper lockout/tagout (LOTO) procedures to protect workers during maintenance.

What sets the D223NRB apart is its ability to deliver a clean, confirmed disconnection under load. This means maintenance teams can work confidently knowing circuits will stay isolated until they're intentionally re-energized, reducing the risk of unexpected energization and downtime.

Key strengths include:

• 100-amp capacity for reliable isolation of service feeders and critical equipment
• Lockout/tagout compatibility to support safe maintenance and compliance
• Durable construction designed for longevity in demanding environments
• Simple, straightforward operation that reduces setup time during outages

Ideal applications include main service disconnects in commercial buildings, power feeds to industrial machinery, HVAC and large process equipment, and anywhere secure energy isolation is required for safety and maintenance. The Square D D223NRB combines brand-tested reliability with practical usability, helping facilities reduce risk and keep operations moving smoothly.

How this disconnect switch helps your operation

• Supports standard safety practices: lockout/tagout, clear energy isolation points, and predictable disconnection behavior under load
• Minimizes downtime during maintenance by providing a dependable, easily accessible disconnect point
• Offers durable performance in environments where dust, vibration, and temperature fluctuations are common

In short, the Square D D223NRB 100A Disconnect Switch is a targeted solution for facilities prioritizing safety, reliability, and long-term service life. When you need a dedicated isolation point that technicians can trust, this model delivers.

Specifications
Amperage Rating: 100A
Product Type: Disconnect Switch
Brand: Square D
Model: D223NRB