{"product_id":"siemens-marq-21-breaker-mcc-bucket-25-a-240-v-18-height-3-p-ampstate","title":"Siemens - Marq 21 - Breaker MCC Bucket - 25 A, 240 V, 18\" Height, 3 P | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for industrial motor control, the Siemens Marq 21 Breaker MCC Bucket is designed to deliver precise protection and seamless compatibility within Marq 21 switchgear systems. Built for OEM replacement and retrofit projects, this unit delivers reliable performance in demanding environments with a compact 18\" bucket height and robust three-pole protection.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Marq 21\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Breaker MCC Bucket\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRating:\u003c\/strong\u003e 25 A, 240 V, 3-Phase\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBucket Height:\u003c\/strong\u003e 18 inches\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cp\u003eIn motor control centers, the MCC bucket is the core element that delivers dependable protection for three-phase motors. The Marq 21 bucket is precision-engineered to drop into Siemens MCC lineups with tight tolerances, ensuring proper alignment with bus bars and accessories. The 3-Pole design consolidates overload and short-circuit protection, providing consistent trip behavior and simplifying preventive maintenance planning.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eOEM replacement in existing Siemens Marq 21 MCC assemblies to minimize downtime and extend equipment life.\u003c\/li\u003e \u003cli\u003eRetrofit projects upgrading aging motor control centers to a proven 25 A, 240 V, 3-Pole configuration.\u003c\/li\u003e \u003cli\u003eNew installations that specify the Marq 21 family for reliable, serviceable motor protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and maintenance\u003c\/h3\u003e\n\u003cp\u003eInstallation should be performed by qualified electrical professionals in accordance with local codes and Siemens guidelines. Verify full compatibility with your specific Marq 21 configuration, ensure proper mounting and alignment, and follow standard terminal connection practices for secure busbar interfaces. Regular inspections and torque checks on mounting hardware help sustain optimal performance over time.\u003c\/p\u003e \u003ch3\u003eWhy choose AmpState\u003c\/h3\u003e\n\u003cp\u003eAmpState provides authentic Siemens MCC components to support global operations. This Marq 21 Breaker MCC Bucket combines Siemens reliability with AmpState’s global distribution network, making it a trusted choice for OEM replacements and scalable retrofits.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46337151369378,"sku":null,"price":2610.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_model_90_95_95_marq_21_8798b8a9-aee3-4a08-acde-642d3a9bfd56.jpg?v=1763780839","url":"https:\/\/www.ampstate.com\/products\/siemens-marq-21-breaker-mcc-bucket-25-a-240-v-18-height-3-p-ampstate","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}