{"product_id":"invensys-55151-speed-controller","title":"Invensys 55151 Speed Controller","description":"\u003cdiv\u003e\u003cp\u003eInvensys 55151 Speed Controller is a motor speed control device used in automation setups that employ Invensys controls. This unit is identified by model number 55151 and offers a defined frequency control range of 10–150 Hz, allowing precise adjustment of the motor’s output speed within that window. As a dedicated speed controller, it translates a control signal into a corresponding drive frequency, enabling operators to tame speed variations and achieve repeatable performance in processes requiring regulated motion. The 55151 specification focuses on frequency-based speed modulation, which is essential for aligning motor performance with varying load and process demands. This controller is part of Invensys’ drive-control ecosystem, chosen when a verifiable frequency response is needed. By restricting output to 10–150 Hz, it provides a clear range for engineers planning control strategies and validating system behavior under different operating conditions. This specification-focused description helps buyers assess whether the 55151 meets their speed-control requirements and supports accurate documentation in system design.\u003c\/p\u003e\u003c\/div\u003e","brand":"Electro","offers":[{"title":"New","offer_id":51685675663662,"sku":null,"price":725.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_e4daa552-deb0-44ba-940a-6fe2b5312a05.jpg?v=1769726148","url":"https:\/\/plgautomation.com\/products\/invensys-55151-speed-controller","provider":"PLG Automation ","version":"1.0","type":"link"}