{"product_id":"siemens-cqd180","title":"Siemens CQD180 80A 1-Pole 277 V Circuit Breaker Potential Transformer","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens CQD180 80A 1-Pole 277 V Circuit Breaker Potential Transformer\u003c\/strong\u003e is a dependable overcurrent protection solution designed for commercial and light industrial electrical panels. With a specific focus on single-pole, 277-volt circuits, this CQD180 part delivers reliable performance where space, reliability, and compatibility matter most.\u003c\/p\u003e \u003cp\u003eKey details at a glance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 80 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1 (single-pole)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 277 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e CQD180\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFunctionality:\u003c\/strong\u003e Circuit protection with potential transformer integration for monitoring configurations\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this breaker stands out. The CQD180 is purpose-built for 277 V single‑phase circuits common in commercial lighting, HVAC control, and general power distribution. Its 80 A rating provides solid protection for feeders and branch circuits without unnecessary interruptions on normal load conditions. Designed as a direct replacement part for compatible Siemens panels, it preserves panel integrity and electrical performance while simplifying maintenance and stock management.\u003c\/p\u003e \u003cp\u003eImportant use cases to consider:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProtecting 277 V lighting and small motor circuits in offices, retail spaces, warehouses, and service areas.\u003c\/li\u003e \u003cli\u003eImplementing reliable protection in retrofit or new-install projects where Siemens CQD180 compatibility is a clear fit.\u003c\/li\u003e \u003cli\u003econfigurations that leverage potential transformer interfaces for monitoring and protective signaling within a larger protection scheme.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eHow this helps you in real-world scenarios:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePrevent electrical damage by interrupting fault currents promptly on single-phase feeders feeding 277 V circuits.\u003c\/li\u003e \u003cli\u003eMaintain system reliability in environments where quick, predictable tripping is critical for uptime and safety.\u003c\/li\u003e \u003cli\u003eKeep equipment and wiring within safe operating limits, reducing risk during surges, short circuits, or overloads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eInstallation and compatibility tips (for a smooth, compliant setup):\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify panel compatibility with Siemens CQD series breakers before replacement.\u003c\/li\u003e \u003cli\u003eInstall by a qualified electrician in accordance with local electrical codes and manufacturer guidelines.\u003c\/li\u003e \u003cli\u003eEnsure the circuit design uses 277 V single-phase distribution suitable for the CQD180’s rating.\u003c\/li\u003e \u003cli\u003eIf integrating with a potential transformer setup for monitoring, follow the system’s metering and signaling configuration requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn short, the Siemens CQD180 80A 1-Pole 277 V Circuit Breaker Potential Transformer offers targeted, dependable protection for 277 V single-phase circuits, backed by Siemens’ reputation for reliability. It’s the practical, specs-aligned choice for professionals stocking replacement parts and upgrading commercial electrical panels.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423220584610,"sku":"CQD180","price":514.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/siemens-cqd180","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}