Versions: EFR 10, EFR 12: 1 Speed, EFR 10 R, EFR 12 R: 5 Speeds, for base load operation one of the 4 levels can be selected. Level 5 (Maximum) is controlled via an additional contact, e.g. light switch or hygrostat. The follow-up time is set in the device via a potentiometer (3 - 25 minutes). Installed in ventilation lines DN 100 and DN 125. Minimum dimensions for installation in little space. Ideal for renovation. Radial wheels with backward curved blades. Connection pieces on suction and pressure sides, for direct installation in ventilation pipes. Protection IP 20. Motor: Standard thermal overload protection. Robust motor with ball-bearing, maintenance-free. Mounting instructions: Can be installed in any position. With mounting plate for wall and ceiling mounting.Article: EFR 12, capacity: 255 m3/h, speed: 2392 1/min, wheel type: Radial, rated voltage 230 V, Mains frequency: 50 Hz, nominal power: 53 W, Pmax: 53 W, IMAX: 0.24 A, protection class: IP 20, Mains cable: 3 / 1.5 mm 2, mounting location: ceiling, mounting position: vertical / horizontal, material: steel sheet, galvanized, material housing: steel sheet, galvanized, Colour: silver gray, weight: 4.2 kg, weight with packing: 4.65 kg, fan swivel out: yes, nominal width: 125 mm, width: 241 mm, height: 122 mm, Depth: 448 mm, Width with Packaging: 265 mm, Height with Packaging: 170 mm, Depth with Packaging: 470 mm, Medium Temperature at IMAX: -20 °C to 50 °C, Ambient Temperature: 50 °C, Sound Pressure Level: 37 dB(A) / Distance 3 m, Free Field Conditions, DC Motor: false
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