{"title":"Variable Speed Fan Controllers","description":"\u003cp\u003eNoisy fans, wasted energy, or airflow that’s always too much—or not enough? \u003cstrong data-start=\"76\" data-end=\"110\"\u003eVariable Speed Fan Controllers\u003c\/strong\u003e let you fine-tune performance exactly where it’s needed. Designed to work seamlessly with \u003ca href=\"https:\/\/www.efans.co.uk\/collections\/extractor-fans\"\u003e\u003cstrong data-start=\"201\" data-end=\"219\"\u003eExtractor Fans\u003c\/strong\u003e\u003c\/a\u003e, they deliver smoother operation, lower running costs, and better control across commercial and industrial ventilation systems.\u003c\/p\u003e\n\u003cp data-start=\"42\" data-end=\"396\"\u003ePrecise airflow control makes a real difference to comfort, noise levels, and energy use. \u003ca href=\"https:\/\/www.efans.co.uk\/collections\/controls-and-sensors\"\u003e\u003cstrong data-start=\"132\" data-end=\"166\"\u003eVariable Speed Fan Controllers\u003c\/strong\u003e\u003c\/a\u003e give you that control, allowing ventilation systems to run only as hard as they need to. Used alongside \u003cstrong data-start=\"271\" data-end=\"289\"\u003eExtractor Fans\u003c\/strong\u003e, they help balance performance with efficiency across commercial, industrial, and specialist applications.\u003c\/p\u003e\n\u003cp data-start=\"398\" data-end=\"550\"\u003eWhether you’re managing a large ventilation system or fine-tuning a single inline fan, this guide helps you choose the right controller with confidence.\u003c\/p\u003e\n\u003ch2 data-start=\"557\" data-end=\"619\"\u003eHigh-Performance Commercial Extractor Fan Speed Controllers\u003c\/h2\u003e\n\u003cp data-start=\"621\" data-end=\"853\"\u003eCommercial environments demand reliable, durable control solutions. Variable speed controllers regulate airflow smoothly, reducing wear on motors and avoiding the noise spikes that come from fans running at full speed unnecessarily.\u003c\/p\u003e\n\u003ch3 data-start=\"855\" data-end=\"921\"\u003eBest Variable Speed Fan Controllers for Industrial Ventilation\u003c\/h3\u003e\n\u003cp data-start=\"923\" data-end=\"1262\"\u003eThe \u003ca href=\"https:\/\/www.efans.co.uk\/collections\/controls-and-sensors\/type_speed-controller\"\u003e\u003cstrong data-start=\"927\" data-end=\"966\"\u003ebest variable speed fan controllers\u003c\/strong\u003e\u003c\/a\u003e for industrial use are designed to handle continuous operation and higher electrical loads. They’re commonly used in warehouses, workshops, plant rooms, and commercial kitchens where airflow needs change throughout the day. Accurate control improves comfort while keeping running costs in check.\u003c\/p\u003e\n\u003ch3 data-start=\"1264\" data-end=\"1318\"\u003e230V Fan Speed Controllers for Single-Phase Motors\u003c\/h3\u003e\n\u003cp data-start=\"1320\" data-end=\"1622\"\u003eA \u003cstrong data-start=\"1322\" data-end=\"1351\"\u003e230V fan speed controller\u003c\/strong\u003e is the most common choice for single-phase extractor and inline fans. These controllers are simple to install and provide stable speed adjustment without causing motor hum or overheating. They’re ideal for offices, retail units, and light industrial ventilation systems.\u003c\/p\u003e\n\u003cp data-start=\"1320\" data-end=\"1622\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/products\/ECElectronicController149-POT-10-MI.jpg?v=1673886877\" alt=\"Elta EC Electronic Controller - eFans Direct Ltd\"\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"1629\" data-end=\"1692\"\u003ePrecision Control for Every Application: 12V to 10 Amp Units\u003c\/h2\u003e\n\u003cp data-start=\"1736\" data-end=\"1862\"\u003eDifferent systems require different power levels. From compact DC fans to heavy-duty AC motors, there’s a controller to match.\u003c\/p\u003e\n\u003ch3 data-start=\"1864\" data-end=\"1913\"\u003eHeavy-Duty Fan Speed Controller 10 Amp Models\u003c\/h3\u003e\n\u003cp data-start=\"1915\" data-end=\"2206\"\u003eA \u003cstrong data-start=\"1917\" data-end=\"1948\"\u003efan speed controller 10 amp\u003c\/strong\u003e model is built for higher-current applications. These units are suited to larger extractor fans and multiple-fan setups, providing reliable control without overheating. They’re often specified in commercial plant rooms and demanding industrial environments.\u003c\/p\u003e\n\u003ch3 data-start=\"2208\" data-end=\"2272\"\u003eLow Voltage Variable Fan Speed Controller 12V for DC Systems\u003c\/h3\u003e\n\u003cp data-start=\"2274\" data-end=\"2504\"\u003eA \u003cstrong data-start=\"2276\" data-end=\"2313\"\u003evariable fan speed controller 12V\u003c\/strong\u003e is designed for low-voltage DC fans. Common in control panels, specialist equipment, and bespoke systems, these controllers allow fine adjustment where precision matters more than raw power.\u003c\/p\u003e\n\u003ch2 data-start=\"2511\" data-end=\"2563\"\u003eChoosing the Best Inline Extractor Fan Controller\u003c\/h2\u003e\n\u003cp data-start=\"2607\" data-end=\"2925\"\u003eSelecting the right controller starts with understanding your fan’s voltage, current draw, and operating environment. While a \u003cstrong data-start=\"2733\" data-end=\"2766\"\u003efan speed controller Screwfix\u003c\/strong\u003e option may suit small DIY tasks, commercial systems benefit from purpose-built controllers designed for continuous use, compliance, and long-term reliability.\u003c\/p\u003e\n\u003cp data-start=\"2927\" data-end=\"3092\"\u003eMatching the controller correctly ensures smoother operation, lower noise, and extended fan life—making it a worthwhile investment for any professional installation.\u003c\/p\u003e\n\u003ch2 data-start=\"3099\" data-end=\"3106\"\u003eFAQs\u003c\/h2\u003e\n\u003cp data-start=\"3108\" data-end=\"3220\"\u003e\u003cstrong data-start=\"3108\" data-end=\"3155\"\u003eHow does a variable speed fan control work?\u003c\/strong\u003e\u003cbr data-start=\"3155\" data-end=\"3158\"\u003eIt adjusts the voltage or frequency supplied to the fan motor.\u003c\/p\u003e\n\u003cp data-start=\"3222\" data-end=\"3304\"\u003e\u003cstrong data-start=\"3222\" data-end=\"3257\"\u003eWhat is a fan speed controller?\u003c\/strong\u003e\u003cbr data-start=\"3257\" data-end=\"3260\"\u003eA device that regulates how fast a fan runs.\u003c\/p\u003e\n\u003cp data-start=\"3306\" data-end=\"3383\"\u003e\u003cstrong data-start=\"3306\" data-end=\"3340\"\u003eWhat is a fan speed regulator?\u003c\/strong\u003e\u003cbr data-start=\"3340\" data-end=\"3343\"\u003eAnother term for a fan speed controller.\u003c\/p\u003e\n\u003cp data-start=\"3385\" data-end=\"3487\"\u003e\u003cstrong data-start=\"3385\" data-end=\"3428\"\u003eHow does a 3 speed fan controller work?\u003c\/strong\u003e\u003cbr data-start=\"3428\" data-end=\"3431\"\u003eIt switches between preset low, medium, and high speeds.\u003c\/p\u003e","products":[{"product_id":"systemair-itr-speed-controller-1-5-amp-for-ac-fans","title":"Systemair ITR Speed Controller 1.5 Amp - For AC Fans","description":"\u003cp\u003eThe Systemair ITR Speed Controller is a single phase electronic speed controller rated at 1.5 Amp for AC fans. The ITR series controls voltage-controllable motors on 110 to 240V AC, 50 to 60Hz supplies.\u003c\/p\u003e\u003cp\u003eIt features automatic power supply detection, minimum speed setting via an internal trimmer and potentiometer regulated stepless control. An unregulated output supports three-wire motor, valve, lamp or damper connections, with a choice of kick or soft start.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStepless control regulated by potentiometer\u003c\/li\u003e\n\u003cli\u003eAutomatic power supply detection\u003c\/li\u003e\n\u003cli\u003eKick or soft start with three-wire unregulated output\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSpeed control of compatible single phase AC fans up to 1.5 Amp\u003c\/li\u003e\n\u003cli\u003eThree-wire motor, valve, lamp or damper installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSystemair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eITR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic speed controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFor AC fans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110-240V AC 50-60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStart\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKick or soft start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStepless via potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eManuals \u0026amp; Guides\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Systemair_ITR_Speed_Controller_Datasheet.PDF?v=1620433243\" target=\"_blank\"\u003eSystemair ITR Speed Controller Data Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Systemair","offers":[{"title":"Default Title","offer_id":35085829832860,"sku":"161166","price":113.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/systemair_1.5_amp_controller.jpg?v=1708019389"},{"product_id":"systemair-itr-speed-controller-3-amp-for-ac-fans","title":"Systemair ITR Speed Controller 3 Amp - For AC Fans","description":"\u003cp\u003eThe Systemair ITR Speed Controller is a single phase electronic speed controller rated at 3 Amp for AC fans. The ITR series controls voltage-controllable motors on 110 to 240V AC, 50 to 60Hz supplies.\u003c\/p\u003e\u003cp\u003eIt features automatic power supply detection, minimum speed setting via an internal trimmer and potentiometer regulated stepless control. An unregulated output supports three-wire motor, valve, lamp or damper connections, with a choice of kick or soft start.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStepless control regulated by potentiometer\u003c\/li\u003e\n\u003cli\u003eAutomatic power supply detection\u003c\/li\u003e\n\u003cli\u003eKick or soft start with three-wire unregulated output\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSpeed control of compatible single phase AC fans up to 3 Amp\u003c\/li\u003e\n\u003cli\u003eThree-wire motor, valve, lamp or damper installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSystemair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eITR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic speed controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFor AC fans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110-240V AC 50-60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStart\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKick or soft start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStepless via potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eManuals \u0026amp; Guides\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Systemair_ITR_Speed_Controller_Datasheet.PDF?v=1620433243\" target=\"_blank\"\u003eSystemair ITR Speed Controller Data Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Systemair","offers":[{"title":"Default Title","offer_id":35085848412316,"sku":"161167","price":113.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/products\/s-l1600_1b4ebefc-d026-4c81-a398-36c72ddb78cb.jpg?v=1620427121"},{"product_id":"systemair-itr-speed-controller-5-amp-for-ac-fans","title":"Systemair ITR Speed Controller 5 Amp - For AC Fans","description":"\u003cp\u003eThe Systemair ITR Speed Controller 5 Amp is an electronic speed controller for the manual control of speed and airflow of single phase voltage-controllable AC fan motors. It varies the supplied voltage across a 110-240V AC 50-60Hz range, with automatic power supply detection and a 5 Amp rating.\u003c\/p\u003e\u003cp\u003eOutput is set by a potentiometer from the minimum voltage up to the supply voltage, with kick start or soft start selectable on the PCB and an illuminated on\/off switch.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e5 Amp\u003c\/li\u003e\n\u003cli\u003eElectronic speed controller\u003c\/li\u003e\n\u003cli\u003eSingle phase\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSingle phase AC fan motors up to 5 Amp\u003c\/li\u003e\n\u003cli\u003eVoltage-controllable fans requiring stepless control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSystemair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eITR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic speed controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC fans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110-240V AC 50-60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStart\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKick or soft start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStepless via potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eManuals \u0026amp; Guides\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Systemair_ITR_Speed_Controller_Datasheet.PDF?v=1620433243\" target=\"_blank\"\u003eSystemair ITR Speed Controller Data Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Systemair","offers":[{"title":"Default Title","offer_id":35085863026844,"sku":"161168","price":119.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/products\/s-l1600_1c4ab8de-3fbe-439f-a1ff-2e0e20850569.jpg?v=1620427121"},{"product_id":"systemair-itr-speed-controller-10-amp-for-ac-fans","title":"Systemair ITR Speed Controller 10 Amp - For AC Fans","description":"\u003cp\u003eThe Systemair ITR Speed Controller 10 Amp is an electronic speed controller for the manual control of speed and airflow of single phase voltage-controllable AC fan motors. It varies the supplied voltage across a 110-240V AC 50-60Hz range, with automatic power supply detection and a 10 Amp rating.\u003c\/p\u003e\u003cp\u003eOutput is set by a potentiometer from the minimum voltage up to the supply voltage, with kick start or soft start selectable on the PCB and an illuminated on\/off switch.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e10 Amp\u003c\/li\u003e\n\u003cli\u003eElectronic speed controller\u003c\/li\u003e\n\u003cli\u003eSingle phase\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSingle phase AC fan motors up to 10 Amp\u003c\/li\u003e\n\u003cli\u003eVoltage-controllable fans requiring stepless control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSystemair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eITR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic speed controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC fans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110-240V AC 50-60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStart\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKick or soft start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStepless via potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eManuals \u0026amp; Guides\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Systemair_ITR_Speed_Controller_Datasheet.PDF?v=1620433243\" target=\"_blank\"\u003eSystemair ITR Speed Controller Data Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Systemair","offers":[{"title":"Default Title","offer_id":35085870104732,"sku":"161169","price":208.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/products\/s-l1600_a587d960-2af5-4d82-bead-35f14671c851.jpg?v=1620427121"},{"product_id":"elta-electronic-speed-controller-149-el31-3-amp","title":"Elta Electronic Speed Controller 149-EL31 3 Amp","description":"\u003cp\u003eThe Elta 149-EL31 is a single phase electronic speed controller rated at 3 Amp. Part of the 149 series, it controls voltage-controllable motors on 110 to 240V AC, 50 to 60Hz supplies by varying the supplied voltage.\u003c\/p\u003e\u003cp\u003eIt offers automatic power supply detection, stepless control and a minimum speed trimmer with min\/max preset. The IP51 enclosure suits ambient temperatures up to 40C, with a fitted motor protection fuse and two or three wire control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStepless control with min\/max preset\u003c\/li\u003e\n\u003cli\u003eAutomatic power supply detection\u003c\/li\u003e\n\u003cli\u003eIP51 enclosure with fitted motor protection fuse\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSpeed control of compatible single phase AC fans up to 3 Amp\u003c\/li\u003e\n\u003cli\u003eTwo or three wire installations up to 40C ambient\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e149-EL31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic speed controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFor AC fans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110-240V AC 50-60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStepless with min\/max preset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Elta","offers":[{"title":"Default Title","offer_id":45667481452865,"sku":"149-EL31","price":107.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/elta-speed-controller-149-el31.jpg?v=1752747799"},{"product_id":"elta-electronic-speed-controller-149-el61-6-amp","title":"Elta Electronic Speed Controller 149-EL61 6 Amp","description":"\u003cp\u003eThe Elta Electronic Speed Controller 149-EL61 is a 6 Amp single phase speed controller for AC fans, part of the Elta 149 series. It operates on 110-240V AC 50-60Hz with automatic power supply detection.\u003c\/p\u003e\u003cp\u003eIt provides stepless speed control with the minimum speed set via a trimmer, min and max presets, a fitted motor protection fuse, and rated to IP51 for operation up to 40C using two or three wire connection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e6 Amp\u003c\/li\u003e\n\u003cli\u003eElectronic speed controller\u003c\/li\u003e\n\u003cli\u003eSingle phase\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSpeed control of single phase AC fans\u003c\/li\u003e\n\u003cli\u003eInstallations needing stepless min and max speed presets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eElta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e149-EL61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eElectronic speed controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e6 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase\u003c\/td\u003e\n\u003ctd\u003eSingle phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan Type\u003c\/td\u003e\n\u003ctd\u003eFor AC fans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e110-240V AC 50-60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003eIP51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003eUp to 40C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eManuals \u0026amp; Guides\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Elta_Electronic_Speed_Controller_149-EL61_6_Amp_Datasheet.pdf?v=1713557221\" target=\"_blank\"\u003eElta 149-EL61 Data Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Elta","offers":[{"title":"Default Title","offer_id":48420075307329,"sku":"149-EL61","price":157.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/149-EL61.jpg?v=1713556989"},{"product_id":"elta-electronic-speed-controller-149-el31tk-3-amp","title":"Elta Electronic Speed Controller 149-EL31TK 3 Amp","description":"\u003cp\u003eThe Elta 149-EL31TK is a single phase electronic speed controller rated at 3 Amp for AC fans. Part of the 149 series, it controls voltage-controllable motors on 110 to 240V AC, 50 to 60Hz supplies by varying the supplied voltage.\u003c\/p\u003e\u003cp\u003eIt offers automatic power supply detection, stepless control and a minimum speed trimmer with min\/max preset. TK versions add motor protection via a motor thermal contact. The IP51 enclosure suits ambient temperatures up to 40C, with a fitted motor protection fuse and two or three wire control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTK motor protection via thermal contact\u003c\/li\u003e\n\u003cli\u003eStepless control with min\/max preset\u003c\/li\u003e\n\u003cli\u003eAutomatic power supply detection and IP51 enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSpeed control of compatible single phase AC fans up to 3 Amp\u003c\/li\u003e\n\u003cli\u003eInstallations needing motor thermal contact protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e149-EL31TK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic speed controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFor AC fans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110-240V AC 50-60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTK thermal contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eManuals \u0026amp; Guides\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Elta_AC_Electronic_Controller_Datasheet.pdf?v=1689689975\" target=\"_blank\"\u003eElta 149-EL31TK Data Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Elta","offers":[{"title":"Default Title","offer_id":55622602391931,"sku":"149-EL31TK","price":113.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/ac_controller_01.png?v=1689689695"}],"url":"https:\/\/www.efans.co.uk\/collections\/variable-speed-fan-controllers.oembed","provider":"eFans Direct Ltd","version":"1.0","type":"link"}