{"product_id":"cb123-40hb","title":"Bussmann CB123-40HB - 40A, 24VDC, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eBussmann CB123-40HB\u003c\/strong\u003e is a dedicated 40A, 24VDC circuit breaker engineered to deliver reliable overcurrent protection in DC-powered systems. Built for industrial reliability, this device is a smart fit for distribution panels where consistent performance and safe operation are non-negotiable.\u003c\/p\u003e \u003cp\u003eDesigned to slot into panelboards, switchboards, control panels, and OEM equipment, the CB123-40HB helps guard critical DC circuits from overload while enabling rapid isolation of faults. With a 40-amp current rating at up to 24VDC, it provides robust protection for medium-load DC rails found in automation, control cabinets, and equipment racks, reducing the risk of damage and downtime.\u003c\/p\u003e \u003ch3\u003eKey benefits and what it means for your system\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise overcurrent protection\u003c\/strong\u003e at 40A for DC circuits, helping prevent insulation damage, component wear, and unexpected shutdowns.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDC-specific protection\u003c\/strong\u003e optimized for 24VDC systems, where arc behavior and fault isolation differ from AC environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile installation options\u003c\/strong\u003e suitable for panelboards, switchboards, control panels, and OEM builds, supporting compact layouts in space-constrained enclosures.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade reliability\u003c\/strong\u003e designed to perform in demanding environments typical of automation rooms, manufacturing lines, and distribution centers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIndustrial automation and machine control systems where DC power rails must be protected from faults.\u003c\/li\u003e \u003cli\u003eControl panels and motor control centers that require dependable, fast-acting DC protection.\u003c\/li\u003e \u003cli\u003eOEM equipment where a compact, reliable circuit-protection device is essential for safe operation.\u003c\/li\u003e \u003cli\u003eDC distribution panels in commercial facilities that rely on stable, uninterrupted power delivery to critical loads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model stands out\u003c\/h3\u003e\n\u003cp\u003eThe CB123-40HB delivers a straightforward, durable solution for overcurrent protection in 24VDC circuits. Its 40A rating provides a clear balance between protection and availability for common DC load profiles, making it a practical choice for engineers designing robust control architectures. By focusing on reliable DC protection in panel-grade configurations, this breaker helps you maintain system integrity and protect downstream equipment from nuisance trips and cascading failures.\u003c\/p\u003e \u003ch3\u003ePractical considerations and tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePair the CB123-40HB with appropriate wiring gauges and enclosure accommodations that match the system’s DC fault levels and insulation requirements.\u003c\/li\u003e \u003cli\u003eLabel the breaker clearly in the control panel to facilitate quick fault diagnosis and maintenance checks.\u003c\/li\u003e \u003cli\u003eWhen commissioning, verify the circuit’s load profile to ensure the 40A rating aligns with actual operating conditions and does not risk nuisance tripping during peak demand.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety practices during installation and servicing to protect personnel and equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor teams building, upgrading, or maintaining DC distribution and motor control infrastructure, the Bussmann CB123-40HB provides a dependable, straightforward protection solution. It combines a clear current rating, a DC-centric design, and compatibility with a range of DC panel configurations to support safe, efficient operation of your critical loads.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bussmann","offers":[{"title":"Default","offer_id":46390756966562,"sku":"CB123-40HB","price":59.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_69537312-4ef7-4997-8765-2e252bc79986.png?v=1765379557","url":"https:\/\/www.ampstate.com\/products\/cb123-40hb","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}