{"product_id":"siemens-a5e00079742-siemens-modular-power-supply-unit","title":"Siemens A5E00079742 | Siemens | Alimentation modulaire  ","description":"\u003cp\u003eThe \u003cstrong\u003eA5E00079742\u003c\/strong\u003e is a specialized \u003cstrong\u003eModular Power Supply Unit (PSU)\u003c\/strong\u003e engineered for industrial automation systems. It is designed to convert standard AC input voltages into a precise, regulated \u003cstrong\u003e+3.3V DC\u003c\/strong\u003e output, suitable for powering low-voltage logic components, control modules, or sensor arrays within an automation cabinet. This unit is characterized by its compact, modular design, making it an ideal candidate for integration into complex, space-constrained industrial control architectures.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible AC Input:\u003c\/strong\u003e Supports a standard industrial input range of 120V to 230V AC, operating at 50\/60 Hz frequencies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise DC Output:\u003c\/strong\u003e Delivers a stable +3.3V DC output at a rated current of 4.2A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular Design:\u003c\/strong\u003e Optimized for mounting within a larger rack or modular control system backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliability:\u003c\/strong\u003e Built to Siemens quality standards to ensure long-term stability and protection against fluctuations in the main supply voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePowering low-voltage digital logic boards and peripheral I\/O modules.\u003c\/li\u003e\n\u003cli\u003eProviding stable supply rails in modular PLC or HMI architectures.\u003c\/li\u003e\n\u003cli\u003eMaintenance and repair of legacy control systems where 3.3V logic is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eA5E00079742\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eModular Power Supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e120 \/ 230 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e+3.3 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e4.2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.52 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Phase\u003c\/td\u003e\n\u003ctd\u003eObsolete\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommodity Code\u003c\/td\u003e\n\u003ctd\u003e85371099\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Despite the compact size, ensure the unit has sufficient airflow in the control cabinet to prevent overheating. Avoid mounting other high-heat-generating components directly above or below this PSU.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Connect the AC input lines according to local electrical codes, ensuring the ground (PE) terminal is securely bonded to the control cabinet's primary ground bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Verification:\u003c\/strong\u003e Before connecting the DC output to your load, use a multimeter to verify the output voltage at the terminals to ensure it matches the 3.3V requirement, particularly if this is being integrated into an older system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance:\u003c\/strong\u003e Since this component is marked as \"Obsolete,\" prioritize regular inspection of its connection terminals for signs of corrosion or overheating during scheduled maintenance intervals.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":52716784517483,"sku":"A5E00079742","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/a5e00079742-buzjpfrm41f_587ac548-c3c9-4984-a41c-c696c2161fae.jpg?v=1767089680","url":"https:\/\/www.plcprotech.com\/fr\/products\/siemens-a5e00079742-siemens-modular-power-supply-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}