{"product_id":"siemens-qj3b225-circuit-breaker","title":"Siemens | QJ3B225 | Circuit Breaker | 225A | 3-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet Siemens QJ3B225 — a bolt-on circuit breaker engineered for robust, dependable protection in commercial and light industrial panels. This 225A, 3-pole unit operates at 240V and is built for maintenance, retrofit, and replacement projects where exact specifications matter. The part number QJ3B225 is the most reliable reference for compatibility, so you can be confident you’re choosing the right device for your Siemens system.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmpere rating:\u003c\/strong\u003e 225 A — suitable for high-load feeders and multi-circuit protection within 240V systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePole configuration:\u003c\/strong\u003e 3‑Pole — delivers three‑phase protection in standard 240V infrastructure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V — aligned with common commercial and industrial distribution panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt‑On — enables secure, straightforward installation with minimal panel modification and reliable mechanical stability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility reference:\u003c\/strong\u003e Use the part number QJ3B225 as the definitive guide to ensure a precise match with your Siemens panel and existing QJ3B series breakers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical applications and who benefits\u003c\/h3\u003e\n\u003cp\u003eThis Siemens circuit breaker is ideal for facilities that require dependable, field-replaceable protection in panels that run on 240V three‑phase power. Use cases include:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: keep spare units on hand for rapid swap‑out when a breaker trips or wears out.\u003c\/li\u003e \u003cli\u003e Retrofit: upgrade or refresh protection in aging or upgraded panel setups without changing the entire bus assembly.\u003c\/li\u003e \u003cli\u003e Replacement: substitute a worn or failed breaker in compatible Siemens installations to restore safe, continuous operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to ensure a perfect fit\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify that your equipment matches these key specifications: 225A rating, 3‑pole configuration, and 240V operation. The QJ3B225 part number is your best reference for compatibility with Siemens panels in the QJ3B family. If in doubt, cross‑check the panel model, the breaker series, and the mounting style to prevent mismatches.\u003c\/p\u003e \u003ch3\u003eInstallation and safety tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eShut off all power and lockout circuits before handling breakers.\u003c\/li\u003e \u003cli\u003eFollow your local electrical codes and manufacturer installation guidelines for bolt‑on devices.\u003c\/li\u003e \u003cli\u003eHandle with clean, dry hands and use appropriate PPE to ensure safe, secure mounting.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to integrate seamlessly with Siemens electrical distributions, the QJ3B225 provides reliable protection, streamlined maintenance planning, and a straightforward path to upgrades or replacements in 240V, three‑phase environments. This is the targeted, specification‑driven choice for professionals who need a precise fit and dependable performance from their circuit protection gear.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427418034338,"sku":"QJ3B225","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/siemens-qj3b225-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}