{"product_id":"siemens-jd22m400-circuit-breaker","title":"Siemens | JD22M400 | Circuit Breaker | 2-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens JD22M400\u003c\/strong\u003e is a reliable 2-pole circuit breaker designed for 240V service with bolt-on mounting. Built for maintenance, retrofit, and replacement projects, it plugs into compatible Siemens panels with confidence, delivering dependable overcurrent protection where you need it most.\u003c\/p\u003e \u003ch2\u003eSmart, task-focused design for real-world needs\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTwo-pole, 240V protection\u003c\/strong\u003e: Safeguards both legs of a 240V circuit with synchronized trip behavior to prevent faults from spreading.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e: Replaces or adds protection quickly in panels that support bolt-on breakers. Solid mechanical fit ensures secure, vibration-resistant operation in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact reference for compatibility\u003c\/strong\u003e: The JD22M400 part number is your best match for interchangeability with Siemens equipment. Always confirm fit and ratings before ordering.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance and retrofit ready\u003c\/strong\u003e: A practical choice for service teams upgrading old installations or retrofitting to meet current electrical codes.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable Siemens engineering\u003c\/strong\u003e: Built to align with Siemens distribution systems and protect equipment with trusted performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho this is for\u003c\/strong\u003e: electrical contractors, facilities engineers, and maintenance crews looking to replace a failing breaker or add protection in existing Siemens panels. Ideal for panel upgrades, service calls on aging electrical infrastructure, and new installations where a two-pole, 240V bolt-on breaker is required.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey considerations for selection and installation\u003c\/strong\u003e: verify the panel rating and exact compatibility using the JD22M400 part number; ensure your panel accepts bolt-on breakers; confirm mounting hardware availability; store in a clean, dry environment to maintain contact integrity and trip performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427067285666,"sku":"JD22M400","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-jd22m400-circuit-breaker-2-pole-240v-bolt-257.webp?v=1789666797","url":"https:\/\/www.ampstate.com\/products\/siemens-jd22m400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}