{"id":9005,"date":"2026-08-31T14:41:41","date_gmt":"2026-08-31T06:41:41","guid":{"rendered":"https:\/\/atfits.com\/?post_type=product&p=9005"},"modified":"2026-08-31T14:42:01","modified_gmt":"2026-08-31T06:42:01","slug":"new-original-siemens-s55150-a100-sax61-03-electric-valve-actuator","status":"publish","type":"product","link":"https:\/\/atfits.com\/es\/producto\/new-original-siemens-s55150-a100-sax61-03-electric-valve-actuator\/","title":{"rendered":"New Original Siemens S55150\u2011A100 SAX61.03 Electric Valve Actuator"},"content":{"rendered":"

Siemens S55150\u2011A100 SAX61.03 Electric Valve Actuator<\/h1>\n

Product Overview<\/h2>\n

Siemens SAX61.03 (Order\u2011No.: S55150\u2011A100) is an ACVATIX series electromotoric modulating valve actuator for HVAC heating, cooling water and low\u2011pressure steam control systems. It provides 800\u202fN positioning force with 20\u202fmm nominal stroke, compatible with Siemens 2\u2011port, 3\u2011port globe valves and pressure\u2011independent control valves. Powered by AC\/DC 24\u202fV, it accepts multi\u2011type modulating input signals and outputs DC 0\u201110\u202fV position feedback for closed\u2011loop building automation control. This is non\u2011spring\u2011return fail\u2011in\u2011place type, widely used in commercial building central air\u2011conditioning, chilled\u2011water loops and heating distribution systems<\/p>\n

Main Functions<\/h2>\n
    \n
  1. Proportional modulating valve positioning responding to DC 0\u201110\u202fV, DC 4\u201120\u202fmA or 0\u20111000\u202f\u03a9 resistance control signals from building controllers.<\/li>\n
  2. Real\u2011time DC 0\u201110\u202fV analog position feedback to transmit actual valve opening status to BMS system.<\/li>\n
  3. Manual override operation for field commissioning and emergency manual adjustment, mechanical position lockable after manual settinghit.sbt.si<\/li>\n
  4. Built\u2011in overload and stall protection to prevent mechanical damage when reaching end\u2011stop positions.<\/li>\n
  5. Automatic stroke calibration during power\u2011on initialization to match paired valve stroke range<\/li>\n
  6. Reserved slot for plug\u2011in auxiliary switch modules to expand external status signal output functions.<\/li>\n
  7. LED status indicator to display power supply, running status and fault conditions for quick on\u2011site diagnosis.<\/li>\n<\/ol>\n

    Technical Features<\/h2>\n
      \n
    • Non\u2011spring\u2011return design, holds current valve position upon power loss (fail\u2011in\u2011place).<\/li>\n
    • Direct mechanical mounting onto matched Siemens control valves without extra adapter modification.<\/li>\n
    • Supports multiple standard industry control input signals for flexible compatibility with various BMS controllers.<\/li>\n
    • Maintenance\u2011free mechanical structure for long\u2011term continuous operation.<\/li>\n
    • IP54 enclosure protection for indoor installation environmentshit.sbt.si<\/li>\n
    • Visual stroke scale for direct local reading of valve opening degree.<\/li>\n
    • Supports parallel connection of multiple actuators under one controller output.<\/li>\n<\/ul>\n

      Technical Data Table<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      Item<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
      Model<\/td>\nSAX61.03<\/td>\n<\/tr>\n
      Order Code<\/td>\nS55150\u2011A100<\/td>\n<\/tr>\n
      Brand<\/td>\nSiemens<\/td>\n<\/tr>\n
      Positioning Force<\/td>\n800\u202fN<\/td>\n<\/tr>\n
      Nominal Stroke<\/td>\n20\u202fmm<\/td>\n<\/tr>\n
      Operating Voltage<\/td>\nAC\/DC 24\u202fV<\/td>\n<\/tr>\n
      Control Input Signal<\/td>\nDC 0\u201110\u202fV, DC 4\u201120\u202fmA, 0\u20111000\u202f\u03a9<\/td>\n<\/tr>\n
      Position Feedback Signal<\/td>\nDC 0\u201110\u202fV<\/td>\n<\/tr>\n
      Full\u2011stroke Positioning Time<\/td>\n30\u202fs<\/td>\n<\/tr>\n
      Power Consumption<\/td>\n6.3\u202fVA, 2.5\u202fW; quiescent power 1.7\u202fW<\/td>\n<\/tr>\n
      Protection Class<\/td>\nIP54<\/td>\n<\/tr>\n
      Operating Ambient Temperature<\/td>\n-5\u202f\u00b0C ~ +55\u202f\u00b0C<\/td>\n<\/tr>\n
      Allowed Medium Temperature<\/td>\n-25\u202f\u00b0C ~ 130\u202f\u00b0C<\/td>\n<\/tr>\n
      Ambient Humidity<\/td>\nMax 95% RH non\u2011condensing<\/td>\n<\/tr>\n
      Mounting Orientation<\/td>\nUpright to horizontal<\/td>\n<\/tr>\n
      Spring Return<\/td>\nNo<\/td>\n<\/tr>\n
      Auxiliary Switch<\/td>\nOptional plug\u2011in module<\/td>\n<\/tr>\n
      Dimensions(W \u00d7 H \u00d7 D)<\/td>\n242\u202fmm \u00d7 124\u202fmm \u00d7 153\u202fmm<\/td>\n<\/tr>\n
      Weight<\/td>\nApprox 1.78\u202fkg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      10 Similar\u2011function Siemens Valve Actuator Products<\/h2>\n
        \n
      1. SAX61.33: 800\u202fN, 20\u202fmm stroke, AC\/DC24\u202fV modulating actuator with spring\u2011return function<\/li>\n
      2. SAX61.03\/MO: SAX61.03 variant with Modbus RTU communication interface<\/li>\n
      3. SAX81.03: 800\u202fN, 20\u202fmm stroke, AC\/DC24\u202fV three\u2011point floating control actuator<\/li>\n
      4. SAX31.03: 800\u202fN, 20\u202fmm stroke, AC230\u202fV power supply modulating valve actuator<\/li>\n
      5. SAX61.03U: UL\u2011certified North\u2011American market version of SAX61.03<\/li>\n
      6. SAS61.03: 400\u202fN, 5.5\u202fmm stroke, AC\/DC24\u202fV non\u2011spring\u2011return modulating valve actuator<\/li>\n
      7. SAX81.33: 800\u202fN, 20\u202fmm stroke, three\u2011point control with spring\u2011return safety function<\/li>\n
      8. SAY61.03: 1600\u202fN high\u2011force modulating electromotive actuator for large\u2011size HVAC control valves<\/li>\n
      9. SAX31.33: 800\u202fN, 20\u202fmm stroke, AC 230\u202fV supply with spring\u2011return safety feature<\/li>\n
      10. SAV61.00: Modulating electromotive actuator for high\u2011capacity HVAC globe control valves<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

        Siemens S55150\u2011A100 SAX61.03 Electric Valve Actuator Product Overview Siemens SAX61.03 (Order\u2011No.: S55150\u2011A100) is an ACVATIX series electromotoric modulating valve actuator<\/p>","protected":false},"featured_media":9006,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[111],"product_tag":[],"class_list":["post-9005","product","type-product","status-publish","has-post-thumbnail","product_cat-siemens","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nNew Original Siemens S55150\u2011A100 SAX61.03 Electric Valve Actuator - Autofits<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atfits.com\/es\/producto\/new-original-siemens-s55150-a100-sax61-03-electric-valve-actuator\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New Original Siemens S55150\u2011A100 SAX61.03 Electric Valve Actuator - 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