{"product_id":"siemens-sb4as4","title":"Siemens SB4AS4 4A Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens SB4AS4 4A Circuit Breaker — a precise, dependable overcurrent protection device designed to safeguard small electrical circuits. This unit carries the exact part number SB4AS4, making it a straightforward fit for Siemens installations where reliable 4-amp protection is required.\u003c\/p\u003e \u003ch2\u003eWhat it is and why it matters\u003c\/h2\u003e\n\u003cp\u003eThe SB4AS4 delivers a clear 4-amp current rating, providing reliable protection for circuits that draw up to 4 A. By interrupting fault currents, it helps prevent wiring damage, overheating, and potential equipment failure, giving you peace of mind in everyday electrical setups.\u003c\/p\u003e \u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e4 A current rating\u003c\/strong\u003e — targeted protection for low-current circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number SB4AS4\u003c\/strong\u003e — unambiguous specification for easy replacement and system planning.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens engineering\u003c\/strong\u003e — backed by the reliability and compatibility you expect from Siemens components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cp\u003eBest suited for protecting smaller branch circuits within Siemens-compatible electrical installations. If your project involves circuits that consistently operate at or below 4 amps, the SB4AS4 provides consistent protection without unnecessary trips. It’s a practical choice when stocking a replacement part or configuring a new Siemens-based distribution setup.\u003c\/p\u003e \u003ch2\u003ePractical tips for deployment\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eConfirm the circuit current draw aligns with the 4 A rating before installation to ensure proper protection.\u003c\/li\u003e \u003cli\u003eSpecifically request or reference the SB4AS4 part number when ordering to guarantee correct compatibility.\u003c\/li\u003e \u003cli\u003eKeep spare SB4AS4 units on hand for quick replacements and minimal downtime during service or upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423112712354,"sku":"SB4AS4","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-sb4as4-4a-circuit-breaker-165.webp?v=1789271276","url":"https:\/\/www.ampstate.com\/products\/siemens-sb4as4","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}