{"product_id":"square-d-a1b150-circuit-breaker","title":"Square D | A1B150 | Circuit Breaker | 50A | 1-Pole | 120V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D A1B150 Circuit Breaker delivers dependable overcurrent protection for 50-amp, 120-volt circuits in a compact, single-pole package. Built for maintenance, retrofit, and replacement projects, this bolt-on breaker helps you restore safe operation in compatible panels without unnecessary downtime.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 50 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 120 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand\/Part:\u003c\/strong\u003e Square D • A1B150\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eDesigned for maintenance, retrofit and replacement\u003c\/h3\u003e\n\u003cp\u003eWhen a circuit breaker fails or a retrofit is required, the A1B150 provides a reliable, drop-in replacement that matches the original specifications. The bolt-on design offers a secure, vibration-resistant connection, helping maintain consistent electrical protection in demanding environments. Use this part to restore proper tripping behavior and protect wiring and connected devices on 50-amp circuits.\u003c\/p\u003e \u003ch3\u003eCompatibility you can trust\u003c\/h3\u003e\n\u003cp\u003eFor ordering confidence, rely on the part number A1B150 as the primary reference. Always confirm the fit and ratings before purchasing to ensure seamless integration with your panel and existing wiring. This breaker is intended for Square D installations that support bolt-on mounting and 1-pole, 120V protection.\u003c\/p\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed or worn 50A, 1-pole breaker in residential or light commercial panels\u003c\/li\u003e \u003cli\u003eRetrofit projects where a like-for-like 120V, 50A protection device is required\u003c\/li\u003e \u003cli\u003eMaintenance of aging electrical panels that demand reliable, code-compliant overcurrent protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy bolted-on mounting matters\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eSecure mechanical attachment reduces the risk of loose connections in busy electrical rooms or vibration-prone installations\u003c\/li\u003e \u003cli\u003eCoupled with a robust electrical rating, it provides consistent protection for branch circuits against overloads\u003c\/li\u003e \u003cli\u003eDesigned to integrate with compatible Square D panels, supporting straightforward installation and long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eReady to complete your electrical protection setup? Add the Square D A1B150 Circuit Breaker to your cart and trust in a proven, mid-range solution for maintaining safe, efficient 120V circuits.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426645594274,"sku":"A1B150","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/square-d-a1b150-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}