Multiflow SEL400 4 1AC Flow Inline Fan Single Phase AC 400mm

The Elta Multiflow SEL400/4-1AC is a 400mm mixed flow inline duct fan with a single phase 4 pole AC motor, moving up to 3445 m³/h in free air and 2970 m³/h against 100 Pa. A diagonal mixed flow impeller and 3D stator guide vanes give it far more pressure than an axial fan of the same diameter.The motor runs at 1440 rpm on 220 to 240V 50Hz, absorbing 0.211 kW at its best efficiency point with integral thermal overload protection, and it is wired through an integral IP44 terminal box. The casing is weatherproofed to IPX4, the fan mounts at any angle on its integral bracket, and Elta give a 12 month warranty. 1 Phase AC Motor Up to 3445 m³/h Speed Controllable What it is best used forQuiet, high volume ventilation on 400mm duct from a single phase supply where system resistance is modest: offices, classrooms, retail units, hotels and general supply or extract. It moves 2970 m³/h at 100 Pa and 2520 m³/h at 150 Pa for only 0.211 kW.Above 150 Pa its curve drops away fast (1033 m³/h at 200 Pa), so for higher pressure on 400mm duct choose a three phase SEL400 or the SEL400-1PEC EC model.Why choose this over alternativesThe SEL400/4-1AC is the largest single phase AC SEL in Elta's datasheet. It moves 3445 m³/h for 0.211 kW at 49 dB(A) inlet, a low running cost for the airflow. For high pressure on 400mm duct, the SEL400-1PEC EC fan delivers 6167 m³/h at 400 Pa on a single phase supply.Installation notes The fan can be mounted in any orientation. Slide it into the duct and fix it with the integral mounting bracket, making sure the ductwork is not strained, and connect duct to both inlet and outlet so no moving parts are accessible. Elta recommend padded connection sleeves or fast clamps (018-400-CLAMP) to cut noise transmitted into the ductwork. Run the airflow in the direction marked on the casing. Wire into the integral IP44 terminal box to Elta diagram 152-541. Elta specify the 149-TC14 5 step transformer controller (4 A) for speed control; at lower steps the fan runs at 1385, 1305 and 1140 rpm. The internal thermal protection does not protect the motor if the impeller is blocked, so where that could happen fit a motor protection switch with thermal and magnetic release. Fit a means of isolation and earth the fan. Install indoors in a dry, condensation free space: Elta's installation manual says SEL fans must not be operated out of doors, and they are not for explosive atmospheres. Clean the impeller and casing at the recommended intervals; an upstream filter extends them. You'll also need Elta 149-TC14 single phase 5 step transformer controller (4 A), the controller Elta specify for this fan. Elta fast clamps 018-400-CLAMP (each) and backdraught damper 018-400-DAMPER, available to order, ask us. Elta spigot silencers 068-0400-JF1 (300mm) to 068-0400-JF4 (1200mm), available to order, ask us. Browse more inline mixed flow fans, inline duct fans or Elta fans, or call us for help choosing the right fan.Specifications Model SEL400/4-1AC Type Mixed flow inline duct fan Duct size 400mm Max airflow 3445 m³/h Static pressure 300 Pa Motor Single phase AC, 220 to 240V 50Hz, 4 pole, 1440 rpm Power 0.211 kW (0.9 A) Noise 49 dB(A) inlet, 53 dB(A) outlet at 3m IP rating IPX4 casing, IP44 terminal box Warranty 1 Year Manufacturer Airflow at 100 Pa 2970 m³/h Airflow at 200 Pa 1033 m³/h Overall efficiency 45.8% at best efficiency point FMEG efficiency grade N 63.4 Max ambient temperature 80°C (nameplate) Breakout noise 39 dB(A) at 3m Weight 13 kg Speed controller 149-TC14 (5 step transformer) Wiring diagram 152-541 Manuals & Guides Elta Multiflow SEL Datasheet Elta Multiflow SEL Installation Manual