Square D D224NRB 200A 2P 240V Safety Switch, NEMA 3R, Fusible | AmpState

Designed for reliability in demanding environments, the Square D D224NRB is a 200 A, 2-pole, 240 V safety switch that serves as a precise equipment disconnect and isolation point at the use site. This NEMA 3R fusible disconnect is built to withstand outdoor exposure and tough indoor conditions, making it a smart choice for maintenance teams, panel builders, and spare parts inventories where a direct part-number match matters.

Key specifications

• Manufacturer: Square D
• Part Number: D224NRB
• Product Type: Safety Switch
• Amperage: 200 A
• Poles: 2
• Voltage: 240 V
• Enclosure Rating: NEMA 3R (outdoor-ready)
• Fusible: Yes (fusible design for integrated overcurrent protection)

Why this safety switch stands out

• Direct part-number match: Specifically listed as the D224NRB, reducing procurement ambiguity and streamlining spare-part inventories.
• Outdoor-ready protection: NEMA 3R enclosure guards against weather, dust, and incidental moisture, keeping circuits isolated and safe in varied environments.
• Instant disconnect for serviceability: A purpose-built point-of-use disconnect simplifies lockout/tagout procedures and minimizes downtime during maintenance.
• Integrated fusible protection: The fusible design provides coordinated protection for downstream equipment while delivering a compact, straightforward solution for electricians and panel builders.
• Trusted architecture: Part of the Square D family, known for robust interoperability with compatible panels, breakers, and accessories.

Ideal use cases

• Outdoor or sheltered equipment disconnects for pumps, conveyors, HVAC units, and irrigation systems.
• Service entrance or point-of-use isolation in industrial control panels and electrical cabinets.
• Spare inventory for fleets that require immediate, direct-replacement parts to keep critical systems online.

Installation and compatibility tips

• Confirm the downstream circuit is rated for up to 240 V and 200 A to match the switch’s specifications.
• Ensure the enclosure and mounting footprint align with existing Square D components to simplify integration into control panels or outdoor enclosures.
• Use this fusible safety switch in coordination with appropriate fuses and upstream protection to achieve proper electrical coordination.

Availability note: This product is available from AmpState. If you need help verifying fit or confirming compatibility with your existing Square D hardware, send us a message and we’ll assist with a precise part-number match and installation considerations.