{"product_id":"siemens-hqr22b150l-circuit-breaker","title":"Siemens | HQR22B150L | Circuit Breaker | 150A | 2-Pole | 240V | 65kA","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HQR22B150L is a high-performance circuit breaker designed for reliable protection in 240V systems. With a 150A rating and a 2-pole configuration, this device safeguards both conductors in a circuit while delivering robust fault-current interruption up to 65kA. Built for maintenance, retrofit, and replacement projects, it’s a practical choice for demanding panels that require precise compatibility with Siemens’ HQR family.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 150A\u003c\/li\u003e \u003cli\u003ePoles: 2-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 240V\u003c\/li\u003e \u003cli\u003eInterrupting rating: 65kA\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the Siemens HQR22B150L\u003c\/h3\u003e\n\u003cp\u003eThis 2-pole 150A breaker delivers dependable protection for high-load circuits, ensuring that both legs disconnect simultaneously during a fault. The 65kA interrupting capacity provides a strong margin against short-circuit events, helping to protect downstream equipment and wiring from damage. Its design aligns with Siemens’ HQR-series panels, facilitating smooth retrofits and replacements where exact part-number compatibility is essential.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePanel replacements in service entrances or heavy-load distribution boards\u003c\/li\u003e \u003cli\u003eRetrofits to upgrade or reconfigure 240V circuits that require 150A protection\u003c\/li\u003e \u003cli\u003eMaintenance and part replacement in existing Siemens HQR31\/32\/ family installations where the HQR22B150L matches the required specs\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation notes\u003c\/h3\u003e\n\u003cp\u003eTo ensure proper fit and safe operation, always confirm the panel’s compatibility with the HQR22B150L before ordering. The part number is the best reference for ensuring correct alignment with your Siemens equipment and existing wiring arrangements.\u003c\/p\u003e \u003ch3\u003ePractical tips for best results\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBefore installation, power down the system and verify there are no live circuits in the panel.\u003c\/li\u003e \u003cli\u003eHave an electrical professional perform the replacement to maintain compliance with local codes and safety standards.\u003c\/li\u003e \u003cli\u003eKeep the original packaging until installation is complete, and record the exact part number for future maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424754651298,"sku":"HQR22B150L","price":733.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hqr22b150l-circuit-breaker-150a-2-pole-240v-65ka-437.webp?v=1789411678","url":"https:\/\/www.ampstate.com\/products\/siemens-hqr22b150l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}