{"product_id":"a21530ct-circuit-breaker","title":"A21530CT | Circuit Breaker | 30A | 4-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the A21530CT Industrial Circuit Breaker — a purpose-built protector for 240V, four-conductor systems. With a precise 30-amp rating and a 4-pole design, this unit is crafted for reliability in maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003cp\u003eThis breaker stands out because it’s built to align exactly with original equipment requirements. The A21530CT is designed to drop into compatible panels with confidence, delivering consistent electrical protection and predictable tripping behavior when circuits experience overloads, faults, or surges. Rely on a part that engineers recommend for long-term stability in industrial environments.\u003c\/p\u003e \u003ch3\u003eWhy it matters\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eExact fit for 4-pole, 240V installations, helping you maintain proper separation of conductors in multi-phase systems.\u003c\/li\u003e \u003cli\u003e30A capacity provides targeted protection for auxiliary motors, feeders, and control circuits without unnecessary nuisance trips.\u003c\/li\u003e \u003cli\u003eBest reference for compatibility is the part number itself — A21530CT ensures you’re selecting the correct device for retrofit and replacement.\u003c\/li\u003e \u003cli\u003eDesigned for maintenance and retrofit workflows, reducing downtime with straightforward installation into compatible panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofits: Replace aging breakers in 240V panels that require a 4-pole, 30A protection device.\u003c\/li\u003e \u003cli\u003eMaintenance: Stock for field service crews who prioritize exact-match components for quick, reliable swaps.\u003c\/li\u003e \u003cli\u003eNew installations: Use in 4-pole 240V circuits where robust, multi-line protection is necessary.\u003c\/li\u003e \u003cli\u003eEquipment protection: Safeguard control circuits and feeders in industrial machinery and panel boards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings on the target panel. The A21530CT is the best reference for compatibility, so verify that your system’s voltage, pole configuration, and amperage align with 240V, 4-pole, 30A specifications. If in doubt, compare the panel model and service requirements to avoid mismatches during retrofit or replacement.\u003c\/p\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 30A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 4-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e A21530CT\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUsage:\u003c\/strong\u003e Industrial circuit protection for maintenance, retrofit, and replacement projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46427297513634,"sku":"A21530CT","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\/a21530ct-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}