{"product_id":"abb-cma121-3dde300401-synpol-d-generator-control-power","title":"ABB CMA121 3DDE300401  (SYNPOL D) Generator Control Power","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCMA121 3DDE300401 (Synpol D)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a highly reliable, heavy-duty DC-to-DC converter power supply module engineered by ABB for dedicated integration within\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSynpol D\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eexcitation and industrial control architectures. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e: ABB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Series Family\u003c\/strong\u003e: Synpol D Control \/ Excitation Architecture\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Designation\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCMA121\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGlobal Part Number \/ Product ID\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3DDE300401\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDevice Classification\u003c\/strong\u003e: Regulated DC-to-DC step-down power converter module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput DC Voltage Window\u003c\/strong\u003e: 12 VDC to 36 VDC range\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNominal Regulated Output\u003c\/strong\u003e: 5 VDC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Continuous Output Current\u003c\/strong\u003e: 4 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Rated Power Capacity\u003c\/strong\u003e: 20 W\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnergy Efficiency Profile\u003c\/strong\u003e: Approximately 85% conversion rate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in Hardware Protections\u003c\/strong\u003e: Comprehensive overvoltage, overcurrent, and automatic short-circuit cutoff loops\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAmbient Operating Temperature Envelope\u003c\/strong\u003e: -20 to +70 degrees C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStorage Temperature Limits\u003c\/strong\u003e: -40 to +85 degrees C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRelative Humidity Tolerance\u003c\/strong\u003e: 5% to 95% RH (Non-condensing)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Case Dimensions (W x H x D)\u003c\/strong\u003e: 100 mm x 50 mm x 30 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Net Weight\u003c\/strong\u003e: 200 grams (Approx. 0.44 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eIndustrial Application Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCMA121 3DDE300401 (Synpol D)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodule is frequently deployed inside the control and regulatory circuits of generator excitation systems, large industrial rectifiers, and specialized synchronizer panels. In these heavy utility applications, large switching spikes or inductive feedback from heavy generator rotors can cause substantial electrical noise on the primary DC rails. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCMA121\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eisolates and cleans up this incoming feed, transforming it into a highly precise 5 VDC logic plane. This protects and powers micro-controller units, gate-pulse triggers, and communication sub-cards that cannot tolerate voltage dips without tripping out the main generator.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":47349191442622,"sku":"CMA121 3DDE300401(SYNPOL D)","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-05-19_16-26-24_a2dd2b3b-c645-4112-803f-bb904410f99e.png?v=1779179311","url":"https:\/\/www.autooiltech.com\/products\/abb-cma121-3dde300401-synpol-d-generator-control-power","provider":"AutoOilTech Limited","version":"1.0","type":"link"}