{"product_id":"abb-cma121-dc-power-supply-module","title":"ABB CMA121 DC Power Supply Module","description":"\u003cp\u003eThe \u003cstrong\u003eABB CMA121\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eCMA121\u003c\/strong\u003e DC Power Supply Module, operates as a dedicated hardware component for stable DC voltage generation within industrial control and automation system networks.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eModel\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003eCMA121\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eBrand\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eOrigin\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eWeight\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003eInternal component baseline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003eStandard DIN-rail layout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"7\"\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd data-row=\"7\"\u003e100-240 VAC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"8\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd data-row=\"8\"\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"9\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd data-row=\"9\"\u003e12.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"10\"\u003eRipple and Noise\u003c\/td\u003e\n\u003ctd data-row=\"10\"\u003e\u0026lt;100 mVp-p\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"11\"\u003eRegulation\u003c\/td\u003e\n\u003ctd data-row=\"11\"\u003e±1% from no load to full load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"12\"\u003eOverload Protection\u003c\/td\u003e\n\u003ctd data-row=\"12\"\u003e105-150% of rated output, auto recovery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"13\"\u003eShort Circuit Protection\u003c\/td\u003e\n\u003ctd data-row=\"13\"\u003eContinuous, auto recovery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"14\"\u003eOvervoltage Protection\u003c\/td\u003e\n\u003ctd data-row=\"14\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"15\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-row=\"15\"\u003eDC Power Supply Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Network Determinism\u003c\/h3\u003e\n\u003cp\u003eAs a primary electrical sourcing component, the CMA121 ensures high-density power scaling across downstream DIN-rail modules or backplane chassis assemblies. It features internal electromagnetic filter components to prevent voltage ripple frequencies (\u0026lt;100 mVp-p) from degrading control signal lines or inducing jitter within deterministic fieldbus network nodes. Firmware flash compatibility checks are not applicable to this physical power layer, which operates entirely via analog feedback regulation circuitry to maintain a fixed ±1% tolerance.\u003cbr\u003e\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":47577438453950,"sku":"CMA121","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-05-25_09-13-16_4db40712-5862-46f3-b57e-297db18280f0.png?v=1779674294","url":"https:\/\/www.autooiltech.com\/products\/abb-cma121-dc-power-supply-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}