{"product_id":"6es5-955-5lb11-siemens-simatic-s5-plc-power-supply","title":"Siemens 6ES5955-5LB11 Simatic S5 Power Supply Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 6ES5955-5LB11 is a robust power supply unit specifically designed for the Simatic S5-135U and S5-155U programmable logic controller systems. This module serves as a critical component in the automation rack, converting standard AC input into stable DC power required for the reliable operation of CPUs and I\/O modules. It is engineered to maintain system integrity in demanding industrial environments, ensuring that control logic remains powered even when subjected to fluctuating grid conditions.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelectable input voltage range for 115 VAC or 230 VAC operation.\u003c\/li\u003e\n\u003cli\u003eDual output rails providing 5 VDC and 24 VDC for system backplane requirements.\u003c\/li\u003e\n\u003cli\u003eIntegrated protection circuits against short-circuits and overvoltage conditions to prevent damage to downstream modules.\u003c\/li\u003e\n\u003cli\u003eFront-mounted LED indicators for immediate monitoring of power status and output regulation health.\u003c\/li\u003e\n\u003cli\u003eDesigned for natural convection cooling, eliminating the need for external fans.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eThis power supply is widely deployed in legacy Siemens S5 automation architectures. Typical applications include heavy manufacturing, petrochemical processing units, and large-scale infrastructure control systems where high availability and consistent DC power are essential for continuous production.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e6ES5955-5LB11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e115\/230 VAC selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e47 to 63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC and 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current (5 VDC)\u003c\/td\u003e\n\u003ctd\u003e10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eNatural convection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the input voltage selector switch is correctly set to match your facility's supply voltage before powering on.\u003c\/li\u003e\n\u003cli\u003eInstallation must be performed by qualified personnel with the system power disconnected.\u003c\/li\u003e\n\u003cli\u003eVerify that the ventilation slots are unobstructed to allow for effective natural convection cooling.\u003c\/li\u003e\n\u003cli\u003eMount the module securely in the designated S5 rack position, ensuring all backplane connectors are fully seated.\u003c\/li\u003e\n\u003cli\u003eMaintain proper grounding practices to minimize the impact of electrical noise on the control system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this power supply compatible with S5-115U systems?\u003c\/strong\u003e\u003cbr\u003eA: No, the 6ES5955-5LB11 is specifically designed for the S5-135U and S5-155U platforms. Please verify your rack series before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I select the input voltage?\u003c\/strong\u003e\u003cbr\u003eA: The unit features a voltage selector switch on the housing. Ensure this is configured for your local power grid (115V or 230V) prior to installation.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44730656456792,"sku":"6ES5955-5LB11","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/wm_1_7e0242bd-ceb9-4add-93ed-545020180160.jpg?v=1788658810","url":"https:\/\/www.industriaxplc.com\/products\/6es5-955-5lb11-siemens-simatic-s5-plc-power-supply","provider":"IndustriaX Limited","version":"1.0","type":"link"}