{"product_id":"siemens-marq-21-breaker-mcc-bucket-125-a-600-v-30-height-3-p-ampstate","title":"Siemens - Marq 21 - Breaker MCC Bucket - 125 A, 600 V, 30\" Height, 3 P | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens Marq 21 Breaker MCC Bucket from AmpState—a purpose-built solution for industrial motor control that blends precise electrical ratings with rugged reliability. Engineered for 125 A, 600 V, 3-Pole operation, this MCC bucket is purposefully designed to slot into Siemens Marq 21 MCC lineups, delivering seamless OEM replacement and retrofit compatibility in demanding environments.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\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: 125 A, 600 V, 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBucket Height\u003c\/strong\u003e: 30 inches\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Industrial motor control in OEM setups and retrofits\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this MCC bucket stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for Siemens Marq 21 MCC systems\u003c\/strong\u003e—ensures a perfect fit with the bus, mounting, and interconnection standards in Siemens switchgear, reducing installation guesswork and downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM replacement and retrofit ready\u003c\/strong\u003e—retrofitting aging gear or upgrading control panels becomes straightforward, with a factory-aligned footprint that maintains system integrity and electrical clarity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration for balanced control\u003c\/strong\u003e—efficient three-phase protection and switching for motors, pumps, conveyors, and other heavy loads common in manufacturing and process environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRobust build for industrial environments\u003c\/strong\u003e—engineered to withstand the rigors of continuous operation, enabling dependable protection in critical motor control applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGlobal supply through AmpState\u003c\/strong\u003e—access to trusted Siemens MCC components with reliable shipping and support wherever your facilities are located.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases and practical applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e OEM replacement in existing Siemens Marq 21 MCC panels to restore original protection and performance without reconfiguring downstream wiring.\u003c\/li\u003e \u003cli\u003e Retrofit projects where upgrading motor control capacity or updating components is required to meet current standards and performance goals.\u003c\/li\u003e \u003cli\u003e Industrial environments with three-phase motors in manufacturing lines, conveyors, pumps, fans, and compressors where consistent 125 A, 600 V service is needed.\u003c\/li\u003e \u003cli\u003e Situations demanding a precise, plug-and-play fit to minimize commissioning time and ensure compatibility with current control strategies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation, compatibility, and maintenance tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e Verify the enclosure and mounting dimensions align with the 30\" bucket height to ensure proper seating and clearance for wiring and cooling paths.\u003c\/li\u003e \u003cli\u003e Confirm electrical ratings match your motor load profile (125 A, 600 V, 3-Pole) to maintain protective coordination and minimize nuisance trips.\u003c\/li\u003e \u003cli\u003e When installing, torque mounting and terminal screws to the manufacturer’s specifications to preserve conductor integrity and contact performance.\u003c\/li\u003e \u003cli\u003e Schedule periodic inspections of the MCC bucket alongside routine motor control maintenance to detect wear, loosened connections, or signs of arcing early.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens Marq 21 Breaker MCC Bucket for a trusted, OEM-aligned path to durable motor control in industrial settings. With its precise ratings, retrofit-friendly design, and dependable Siemens engineering, this MCC bucket helps you restore performance, reduce downtime, and keep critical processes moving smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46337276412066,"sku":null,"price":7010.0,"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_b5172f92-029d-44cb-9cac-36dda2716ed4.jpg?v=1763783004","url":"https:\/\/www.ampstate.com\/products\/siemens-marq-21-breaker-mcc-bucket-125-a-600-v-30-height-3-p-ampstate","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}