{"product_id":"systemair-rtrd-14-speed-controller-3-phase-14-amp-5944","title":"Systemair RTRD 14 Speed Controller 3 Phase - 14 Amp 5944","description":"\u003cp\u003eManual five-step transformer (with motor protection)\u003c\/p\u003e\n\u003cp\u003eA three-phase transformer which controls the fan speed by altering the supply voltage in five fixed steps. The steps are adjusted manually, using the control knob on the front of the unit.\u003c\/p\u003e\n\u003cp\u003eAn integral motor protection device is included which cuts the supply voltage to the fan if the thermal contact in the fan motor is activated. The unit is reset by turning the knob to “0” for 10 seconds, after which the unit restarts.\u003c\/p\u003e\n\u003cp\u003eInput terminals for room thermostat RT and frost protection thermostat FS cut supply voltage to the fan when the circuit is broken. When the frost protection thermostat FS breaks the circuit, it is reset in the same way as when the TK is triggered. Terminals are linked before delivery. The indicator lamp on the front shows that the transformer is in operation.\u003c\/p\u003e\n\u003cp\u003eThe transformer has 230V terminals for operating dampers, electric heater batteries or other external equipment. These terminals have no current when the transformer knob is in position 0, or when the TK or RT input is open. Supply voltage: 400V 50\/60Hz.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eManuals \u0026amp; Guides\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Systemair_RTRD_14_Speed_cont_Systemair.pdf?v=1696535042\" title=\"RTRD14\"\u003eSystemair RTRD 14 Speed Controller 3 Phase - 14 Amp Data Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Systemair","offers":[{"title":"Default Title","offer_id":46988670730561,"sku":"5944","price":1245.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/dutgyct3_a3707def-a362-4ba3-a275-dd8f4759bb4d.png?v=1696575452","url":"https:\/\/www.efans.co.uk\/products\/systemair-rtrd-14-speed-controller-3-phase-14-amp-5944","provider":"eFans Direct Ltd","version":"1.0","type":"link"}