{"product_id":"siemens-cqd6330","title":"Siemens CQD6330 30A 3-Pole 600 V Circuit Breaker Potential Transformer","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens CQD6330 30A 3-Pole 600 V Circuit Breaker — a robust protection device designed for three-phase electrical systems. With part number CQD6330, this breaker delivers precise overload protection for feeders and motors in demanding industrial and commercial environments, and it’s positioned to integrate cleanly into Siemens protection schemes.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 30 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 3-pole for balanced three-phase protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e CQD6330\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePotential Transformer compatibility:\u003c\/strong\u003e suitable for protection schemes that rely on PT inputs\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters: in three-phase systems, a 3-pole breaker protects all phases simultaneously, reducing the risk of phase imbalance and unwanted trips. The 600 V rating makes it suitable for a wide range of industrial distribution setups, while the 30 A rating targets feeders and motor circuits common in mid-sized installations. This combination delivers dependable, predictable protection where it’s needed most.\u003c\/p\u003e \u003cp\u003eIdeal use cases include:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eProtecting three-phase feeders in panelboards and switchgear\u003c\/li\u003e \u003cli\u003eMotor protection for conveyors, pumps, and fans in manufacturing or processing facilities\u003c\/li\u003e \u003cli\u003eUpgrading existing electrical distribution to a reliable 3-phase protection solution in 600 V systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eCompatibility and installation notes: ensure your panel or enclosure supports CQD-series breakers and follow standard wiring practices for three-phase protection. Proper torque on lugs and secure mounting per Siemens guidelines help maintain reliable operation in demanding environments.\u003c\/p\u003e \u003cp\u003eWhat sets the CQD6330 apart is the combination of Siemens reliability and a clean, three-pole design that simplifies coordination across all phases. It’s a practical, purpose-built choice for projects where 3-phase protection at 600 V is essential, and where a 30 A breaker fits the load profile of feeders and motor circuits.\u003c\/p\u003e \u003cp\u003ePractical tips for maximizing performance:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMatch the breaker to your circuit’s overload and short-circuit protection needs, and configure any protection relays accordingly\u003c\/li\u003e \u003cli\u003eVerify panel compatibility with CQD-series devices to ensure a smooth installation\u003c\/li\u003e \u003cli\u003eConsider potential-transformer-based protection schemes if your system requires voltage sensing for monitoring and protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423589355682,"sku":"CQD6330","price":3764.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-cqd6330-30a-3-pole-600-v-circuit-breaker-potential-transformer-250.webp?v=1789318409","url":"https:\/\/www.ampstate.com\/products\/siemens-cqd6330","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}