Square D D224NRB General Duty Fusible Safety Switch, NEMA 3R

Square D D224NRB General Duty Fusible Safety Switch, NEMA 3R Enclosure

Square D by Schneider Electric general duty fusible safety switches deliver dependable over-current and short-circuit protection for residential and light commercial applications, including lighting, air conditioning, and appliance circuits. This family is available in 2-pole and 3-pole configurations, rated 240V AC operational voltage with a NEMA 3R enclosure for outdoor and wet-location mounting. Every configuration features a quick-make, quick-break operating mechanism and lug-style electrical connections for AWG 6...250 kcmil aluminum/copper conductors, tightened to 275 lbf.in. UL Listed (File E2875) for code-compliant residential and commercial installations, these fusible disconnect switches are engineered for durability and economy across the full pole-count range.

Key Features

• Pole Configurations: Available in 2-pole and 3-pole versions to match single-phase and three-phase circuit requirements.
• Rated Operational Voltage (Ue): 240V AC for dependable circuit protection across all pole configurations.
• Connection Type: Lug-style terminals accept AWG 6...250 kcmil aluminum/copper conductors, tightened to 275 lbf.in.
• Motor Power Rating: Up to 25 hp at 240V AC 60 Hz for 3-phase motors and 15 hp for 1-phase motors.
• Quick-Make, Quick-Break Mechanism: Provides positive, fast switching action for safe operation.
• Short Circuit Current Rating: Up to 100 kA maximum depending on fuse class H, K, or R.
• Enclosure Rating: NEMA 3R (Type R) enclosure suitable for outdoor and wet-location mounting.
• Device Type: Single throw fusible disconnect switch designed for residential and commercial use.

Certifications & Compliance

• UL Listed (File E2875)
• NEMA 3R Rated Enclosure
• RoHS Exemption Compliant

Technical Specifications

• Voltage Rating: 240V
• Connection Type: Lugs
• Toxic Heavy Metal Free: Yes
• Warranty Period: 18 months
• Sustainable Packaging: Yes
• Serviceability: No
• With Recycled Cardboard: Yes
• Without Single Use Plastic: Yes
• Mercury Free: Yes
• Average Life Duration: 15 year(s)
• Returnability: Yes

Typical Applications

• Residential and Light Commercial Electrical Service
• Lighting Circuit Disconnects
• Air Conditioning Equipment Disconnects
• Appliance Circuit Protection
• Outdoor and Wet-Location Disconnect Installations

Why Square D?

Square D by Schneider Electric is engineered for durability and economy across the full 2-pole and 3-pole lineup, with a UL Listed fusible disconnect design, quick-make quick-break switching mechanism, and a code-compliant NEMA 3R enclosure that contractors and panel builders trust for reliable over-current and short-circuit protection.