{"product_id":"square-d-qou1401021-circuit-breaker","title":"Square D | QOU1401021 | Circuit Breaker | 40A | 1-Pole | 240V","description":"\u003cdiv\u003eSquare D QOU1401021 is a focused solution for 240V circuits that demand dependable protection with precise settings. This 40A, 1-pole breaker is purpose-built for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring your panel configuration remains consistent and compliant. Key advantages you’ll appreciate\n- Exact specification match: Part number QOU1401021 serves as the clearest reference for compatibility with Square D panels that support the QOU series.\n- Targeted overcurrent protection: 40-amp rating provides appropriate circuit protection for higher-load branch circuits on 240V, helping prevent wiring damage and reduce nuisance trips on normal operation.\n- Streamlined replacement path: When a replacement is required, this unit is designed to align with the original design intent, preserving trip characteristics and overall electrical safety in your installation.\n- Maintenance-ready: A practical choice for service calls, panel retrofits, or upgrades where you need a like-for-like component to minimize disruption. Ideal use scenarios\n- Maintenance and replacement: Swap in this breaker when an existing 40A, 1-pole 240V unit fails or wears out, restoring circuit protection quickly.\n- Retrofit and panel upgrades: Use in compatible Square D panels during renovation projects where a 40A 1-pole device is specified.\n- New install considerations: Suitable for new builds or reconfigurations that require a 40A, 240V single-pole breaker within the QOU family. What to know before you buy\n- Verification matters: Confirm fit and ratings before ordering. The best reference for compatibility is the part number itself—QOU1401021.\n- Brand and compatibility: This is a Square D component designed to work within panels that accommodate the QOU series, so check your panel labeling to ensure a proper match. Technical snapshot\n- Amperage: 40A\n- Poles: 1-Pole\n- Voltage: 240V\n- Part number: QOU1401021\n- Brand: Square D\n- Series: QOU In practice, this circuit breaker delivers reliable protection for 240V branch circuits in residential or light commercial settings where a 40A, 1-pole device is appropriate. With its exact part number as your compatibility anchor, you can proceed with confidence in installations, replacements, and panel refreshes that require a precise, like-for-like component.\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424370086050,"sku":"QOU1401021","price":180.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-qou1401021-circuit-breaker-40a-1-pole-240v-160.webp?v=1789345548","url":"https:\/\/www.ampstate.com\/products\/square-d-qou1401021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}