Square D Q23225NRB 225A 3P 240V Circuit Breaker, NEMA 3R | AmpState

The Square D Q23225NRB is a rugged 225 A, three-pole, 240 V circuit breaker designed to deliver dependable overcurrent protection in panelboards, load centers, and electrical distribution systems. Built for reliability in both indoor and outdoor applications, this NEMA 3R-rated unit is a smart choice for installations where weather resistance and consistent performance matter.

• Amperage: 225 A
• Poles: 3
• Voltage: 240 V
• Enclosure rating: NEMA 3R (weather-resistant for outdoor and damp environments)
• Manufacturer: Square D
• Part Number: Q23225NRB
• Application: Circuit protection for panelboards, load centers, and electrical distribution

Who benefits most from this part? maintenance teams maintaining consistent, ready-to-install inventory; panel builders needing exact part-number matches to streamline procurement; and facilities that rely on rapid replacement to minimize downtime in outdoor or rugged environments. The Q23225NRB is particularly valuable when a direct part-number match matters for seamless compatibility with existing assemblies and documentation.

Why this model stands out

• Direct fit for reinforced workflows: a precise part-number match reduces guesswork during ordering, stocking, and installation.
• Outdoor-ready protection: NEMA 3R rating means dependable performance in exposed or damp settings without compromising safety.
• Three-phase distribution capability: ideal for multi-phase electrical systems that require robust, coordinated protection for each leg.
• Trusted Square D lineage: built to the standards you expect from a leading name in electrical protection, with compatibility across the Square D/SCHneider Electric ecosystem.

Availability and support: this part is available from AmpState. If you’re unsure about compatibility with your existing equipment, message us and we’ll help confirm fit and guide you toward the right selection for your panel, feeder, or distribution setup.

Practical use scenarios

• Outdoor service panels or weather-exposed sub-panels where reliable NEMA 3R protection is essential.
• Replacement in maintenance inventories to ensure immediate, direct-part replacements without delays.
• New panel builds or upgrades requiring a precise 225 A, 3P, 240 V protection device for three-phase circuits.