Elta SSDL500-1EC-RT Singleflow Centrifugal Box Fan Single Phase EC - 500mm (rectangular spigots and terminal box)

The Elta SSDL500-1EC-RT is a 500mm Singleflow SSDL centrifugal box fan with rectangular inlet and outlet spigots and a pre-fitted terminal box. It moves up to 5814 m³/h in free air, 4543 m³/h at 200 Pa and still 2192 m³/h at 500 Pa, the highest pressure in Elta's published table.A single phase EC external rotor motor (220-240V 50/60Hz) drives a backward curved impeller balanced to ISO1940-1, at up to 1310 rpm with an integrated commissioning control for setting speed. The 1.2mm galvanised steel casing is acoustically lined and suitable for external mounting, the IP44 motor has sealed for life bearings and runs in air from -20°C to +60°C, and Elta backs it with a 12 month warranty. 1 Phase EC Motor Up to 5814 m³/h Speed Controllable What it is best used forThe largest single phase SSDL, for high volume extract or supply on 500mm duct in warehousing, factories, industrial units and large commercial kitchens where only a single phase supply is available. At 100 Pa it moves 5184 m³/h, roughly 10 air changes an hour in a space of about 520 m³.Above about 400 Pa it delivers less air than the SSDL400, so it is not the choice for very high resistance systems. It is not suitable for corrosive or explosive atmospheres, and the airstream must stay within -20°C to +60°C.Why choose this over alternativesThis is the 500mm SSDL with rectangular spigots and terminal box. Pick this version when the fan connects to rectangular ductwork and you also want a pre-fitted terminal box for a quick, tidy electrical connection. The fan, motor and performance are identical across the four versions, so the choice is only about duct shape and wiring. The same size is also available as Elta SSDL500-1EC (circular spigots), Elta SSDL500-1EC-T (circular spigots with terminal box) and Elta SSDL500-1EC-R (rectangular spigots).It moves the most air of any single phase SSDL, 5184 m³/h at 100 Pa, with the lowest specific fan power in the whole range (0.51 W/(L/s) at 100 Pa). If the system resistance is a