Details about Maer condenser fan 400mm model:YSWF74M4-470N-400/YDWF74M4-470N-400 voltage: 380V / 220V frenquency:50Hz air volume: 4,235m3/h/4,235m3/h speed: 1,400RPM/1,400RPM input power: 190W/195W current: 0.48A/0.88A noise:69dBA/69dBA impeller:5 impellers net: 6kg insulater class: B (F is possible) ------------------------------------------------------------------------------ model:YSWF74M6-470N-400/YDWF74M6-470N-400 voltage: 380V / 220V frenquency:50Hz air volume: 3,290m3/h/3,290m3/h speed: 920RPM/920RPM input power: 120W/120W current: 0.38A/0.56A noise:60dBA/60dBA impeller:5 impellers net: 6kg insulater class: B (F is possible) ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ model:YSWF74L4-522N-450/YDWF74L4-522N-450 voltage: 380V / 220V frenquency:50Hz air volume: 5,180m3/h/5,180m3/h speed: 1,380RPM/1,380RPM input power: 240W/240W current: 0.65A/1.08A noise:68dBA/68dBA impeller:5 impellers net: 8kg insulater class: B (F is possible) ------------------------------------------------------------------------------ plastic impellers model:YDWF74L6-3-522N-450 voltage: 220V frenquency:50Hz air volume: 4,590m3/h speed: 900RPM input power: 165W current: 0.8A noise:58dBA impeller:3impellers plastic fan net: 5.4kg insulater class: B (F is possible) ------------------------------------------------------------------------------ model:YSWF74L6-522N-450/YDWF74L6-522N-450 voltage: 380V / 220V frenquency:50Hz air volume: 4,590m3/h/4,590m3/h speed: 1,380RPM/1,380RPM input power: 160W/160W current: 0.48A/0.75A noise:62dBA/62dBA impeller:5 impellers net: 8kg insulater class: B (F is possible) ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- MODEL:YSWF102L45P4-570N-500/YDWF102L45P4-570N-500 VOLTAGE: 380V / 220V FREQUENCY:50Hz AIR VOLUME: 7,800m3/h/7,800m3/h SPEED: 1,390RPM/1,390RPM INPUT POWER: 520W/520W CURRENT: 1.2A/2.3A NOISE:72dBA/72dBA IMPELLER:5 IMPELLERNET: 9.8KG INSULATE CLASS: B (F IS POSSIBLE) ------------------------------------------------------------------------------- MODEL:YSWF102L45P6-570N-500/YDWF102L45P6-570N-500 VOLTAGE: 380V / 220V FREQUENCY:50Hz AIR VOLUME: 5,900m3/h/5,900m3/h SPEED: 928RPM/928RPM INPUT POWER: 270W/270W CURRENT: 0.73A/1.3A NOISE:68dBA/68dBA IMPELLER:5 IMPELLERNET: 9.8KG INSULATE CLASS: B (F IS POSSIBLE) ------------------------------------------------------------------------------- MODEL:YSWF102L40P4-570N-500/YDWF102L40P4-570N-500 VOLTAGE: 380V / 220V FREQUENCY:50Hz AIR VOLUME: 7,200m3/h/7,200m3/h SPEED: 1,380RPM/1,380RPM INPUT POWER: 460W/460W CURRENT: 1.0A/2.1A NOISE:71dBA/71dBA IMPELLER:5 IMPELLERNET: 9.2KG INSULATE CLASS: B (F IS POSSIBLE) ------------------------------------------------------------------------------- MODEL:YSWF102L40P6-570N-500/YDWF102L40P6-570N-500 VOLTAGE: 380V / 220V FREQUENCY:50Hz AIR VOLUME: 5,500m3/h/5,500m3/h SPEED: 925RPM/925RPM INPUT POWER: 240W/240W CURRENT: 0.63A/1.2A NOISE:71dBA/71dBA IMPELLER:5 IMPELLERNET: 9.2KG INSULATE CLASS: B (F IS POSSIBLE) ------------------------------------------------------------------------------- MODEL:YSWF102L35P4-570N-500/YDWF102L35P4-570N-500 VOLTAGE: 380V / 220V FREQUENCY:50Hz AIR VOLUME: 6,500m3/h/6,500m3/h SPEED: 1,400RPM/1,400RPM INPUT POWER: 380W/380W CURRENT: 0.82A/1.7A NOISE:70dBA/70dBA IMPELLER:5 IMPELLERNET: 8.8KG INSULATE CLASS: B (F IS POSSIBLE)