{"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\u003cp\u003eThe Siemens 6ES5955-5LB11 is a robust power supply unit specifically designed for the Simatic S5-135U and S5-155U programmable logic controller series. This module serves as the primary energy source for the system backplane, ensuring stable DC voltage distribution to CPUs and I\/O modules in demanding industrial environments. By providing consistent power regulation, this unit helps maintain system integrity in critical applications such as chemical processing, power generation, and large-scale manufacturing automation.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned for seamless integration with Siemens Simatic S5-135U and S5-155U rack systems.\u003c\/li\u003e\n\u003cli\u003eSelectable input voltage range (115 VAC or 230 VAC) for flexible installation across global power grids.\u003c\/li\u003e\n\u003cli\u003eIntegrated protection circuitry guarding against overvoltage and short-circuit conditions to prevent damage to downstream components.\u003c\/li\u003e\n\u003cli\u003eFront-mounted diagnostic LEDs for immediate visual monitoring of power status and output health.\u003c\/li\u003e\n\u003cli\u003eEngineered for reliable operation in high-noise electrical environments typical of heavy industrial facilities.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e6ES5 955-5LB11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e115 VAC \/ 230 VAC (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\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 \/ 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 Method\u003c\/td\u003e\n\u003ctd\u003eNatural convection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the rack power is disconnected before installing or removing the module to prevent electrical shock or damage to the backplane pins.\u003c\/li\u003e\n\u003cli\u003eVerify that the voltage selection switch is set correctly for your local supply (115V or 230V) before applying power.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate clearance around the module to allow for natural convection cooling; avoid mounting in areas with excessive dust or high humidity.\u003c\/li\u003e\n\u003cli\u003eUse appropriate industrial-grade wiring for input connections and ensure all terminal screws are tightened to the specified torque to prevent loose connections.\u003c\/li\u003e\n\u003cli\u003eAlways handle sensitive electronic modules using proper ESD (Electrostatic Discharge) precautions to protect internal circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs the 6ES5955-5LB11 compatible with S5-115U systems?\u003c\/strong\u003e\u003cbr\u003eThis specific power supply is designed for the S5-135U and S5-155U platforms. Please check your specific rack hardware requirements before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this module require external cooling fans?\u003c\/strong\u003e\u003cbr\u003eNo, the unit is designed for natural convection cooling. Ensure the installation environment allows for unobstructed airflow around the module vents.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I change the input voltage?\u003c\/strong\u003e\u003cbr\u003eThe module features a selectable input voltage setting. Please refer to the physical switch or jumper configuration on the unit, ensuring the input matches your facility's power supply before activation.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44035219947610,"sku":"6ES5955-5LB11","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_45f3a4d3-9529-4076-b62c-21638025e169.jpg?v=1788930460","url":"https:\/\/www.spareoil.com\/es\/products\/6es5-955-5lb11-siemens-simatic-s5-plc-power-supply","provider":"SpareOil Automation","version":"1.0","type":"link"}