{"product_id":"siemens-546-00437b-lab-electronic-actuator-24-vac-45-60-90-angles","title":"Siemens 546-00437B Lab Electronic Actuator 24 VAC (45\/60\/90 angles)","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 546-00437B is a 24 VAC laboratory electronic actuator intended for damper and fume hood control. It accepts floating\/3-position (two 24 VAC digital inputs), 0-10 VDC, and 4-20 mA control signals and provides selectable fail-safe behavior as well as manual override. The actuator includes integral current sensing protection and offers multiple rotation angle options for integration with HVAC and lab room control systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOperates at 24 VAC; torque 97 lb-in for damper and fume hood actuation\u003c\/li\u003e\n  \u003cli\u003eAccepts floating\/3-position (two 24 VAC inputs), 0-10 VDC, 4-20 mA, and Siemens pulsed signals\u003c\/li\u003e\n  \u003cli\u003eSelectable power-failure options (hold last position or fail-safe NO\/NC), manual override, and integral current sensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\n\u003cp\u003e24 VAC laboratory actuator with 97 lb-in torque, multi-input control (floating\/0-10 V\/4-20 mA), selectable fail-safe modes, and 45\/60\/90 degree rotation options\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SIEMENS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 546-00437B\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SIEMENS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN\u003c\/strong\u003e: 546-00437B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Siemens Building Technologies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Laboratory electronic actuator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Family\u003c\/strong\u003e: Lab Controls\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage\u003c\/strong\u003e: 24 VAC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTorque\u003c\/strong\u003e: 97 lb-in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Inputs\u003c\/strong\u003e: Floating\/3-position (two 24 VAC digital inputs), 0-10 VDC, 4-20 mA, Siemens pulsed signal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRotation Angles\u003c\/strong\u003e: 45, 60, 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Failure Options\u003c\/strong\u003e: Hold last position or fail-safe (Normally Open\/Normally Closed)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelectable Fail-safe Action\u003c\/strong\u003e: Retract or extend\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNEC Class\u003c\/strong\u003e: Class 2 isolated interface board\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManual Override\u003c\/strong\u003e: At the interface board\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Protection\u003c\/strong\u003e: Integral current sensing protection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Option\u003c\/strong\u003e: Galvanized enclosure option for 90 degree rotation mounting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTypical Applications\u003c\/strong\u003e: Fume hood damper actuation, room pressurization control, HVAC damper control\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSKU\u003c\/strong\u003e: 546-00437B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDocument - Datasheet\u003c\/strong\u003e: Document No. 149-398 (LA546 technical specification)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDocument - Installation Instructions\u003c\/strong\u003e: Document No. 546-00092 (installation instructions)\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":51467589583154,"sku":"546-00437B","price":728.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313941882.jpg?v=1783907241","url":"https:\/\/voomisupply.com\/products\/siemens-546-00437b-lab-electronic-actuator-24-vac-45-60-90-angles","provider":"Voomi Supply","version":"1.0","type":"link"}