{"product_id":"siemens-qj3b200l-circuit-breaker","title":"Siemens | QJ3B200L | Circuit Breaker | 200A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens QJ3B200L\u003c\/strong\u003e is a purpose-built 200A, 3-pole circuit breaker designed for reliable protection in 240V, 3-phase electrical environments. Built to support maintenance, retrofit, and replacement projects, this unit helps you keep critical power systems safe and up to spec when matching the exact part number is essential.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 200A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e Part number QJ3B200L is the best compatibility marker\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose the QJ3B200L for your panel? When your setup demands precise fit and ratings, this Siemens breaker provides the dependable protection you need for 3‑phase feeders and distribution circuits. It’s especially valuable in retrofit projects or when replacing a failed unit in existing Siemens panels that specify the QJ3B family. The exact part number ensures you’re selecting a device that matches the electrical characteristics and mounting geometry required by your equipment, reducing downtime and compatibility risk.\u003c\/p\u003e \u003ch3\u003eUse cases and practical applications\u003c\/h3\u003e\n\u003cp\u003eIdeal for routine maintenance scheduling in commercial or light industrial panels, this breaker supports:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a worn or failed 3‑pole, 200A breaker in a 240V 3‑phase distribution system\u003c\/li\u003e \u003cli\u003eRetrofits where a 200A main or feeder protection is needed without changing panel hardware\u003c\/li\u003e \u003cli\u003eUpgrading aging shutdown protection to restore reliable circuit control and isolate faults quickly\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eBefore ordering, verify fit and ratings against your equipment’s documentation. The part number QJ3B200L serves as the most reliable compatibility reference, ensuring that dimensions, clip\/slide mounting, and electrical characteristics align with your Siemens panel and 3‑phase configuration.\u003c\/p\u003e \u003cp\u003ePractical tip: keep a compatible spare on hand for planned maintenance or unexpected outages. When in doubt, cross-check the service panel’s label or documentation for the QJ3B family requirements to minimize installation surprises and maximize system uptime.\u003c\/p\u003e \u003cp\u003eElevate your panel protection with the Siemens QJ3B200L—precise, dependable, and designed to meet the exact specs your 3‑phase 240V system demands.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427418067106,"sku":"QJ3B200L","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qj3b200l-circuit-breaker-200a-3-pole-240v-727.webp?v=1789720336","url":"https:\/\/www.ampstate.com\/products\/siemens-qj3b200l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}