234 2016-01 air performance measured according to: iso 5801. installation category a, without contact protection. noise: total sound power level l w a iso 103002measured on a hemisphere with a radius of 2 m; sound pressure level l p a measured at 1 m distance from fan axis. the values given are applicable only under the specified measuring conditions and may differ depending on the installation conditions. described measurement set-up and may vary depending on the installation situation. for detailed information see http://www.ebmpapst.com/general conditions C possible special versions: (see page 12) - moisture protection - salt spray protection - degree of protection: ip 54 max. 42 m 3 /h type m 3 /h cfm vac hz bel(a) / watts rpm -1 c hours hours rl 90-18/50 40 23.5 230 50 5.6 20.0 2 450 -10...+50 37 500 / 30 000 ? rl 90-18/56 40 23.5 230 50 5.6 20.0 2 450 -30...+70 37 500 / 20 000 ? rl 90-18/00 42 24.7 115 60 6.0 19.5 2 550 -10...+60 37 500 / 25 000 ? rl 90-18/06 42 24.7 115 60 6.0 19.5 2 550 -30...+85 37 500 / 15 000 ? subject to change C material: scroll housing: grp 1) (pbt) impeller: grp 1) (pa) housing base: sheet steel C direction of air flow: centrifugal: discharge through window in housing C direction of rotation: clockwise, looking towards rotor C connection: via 2 single wires; housing base with flat plugs 6.3 x 0.8 mm for ground conductor C highlights: forward-curved impeller C weight: 680 g 1) fiberglass-reinforced plastic nominal voltage air flow air flow frequency sintec sleeve bearings ball bearings power consumption nominal speed temperature range service life l 10 at 40 c at t m a x curve sound power level fan type connection wires rl 90-18/50 rl 90-18/00 awg 18, tr 32 rl 90-18/56 rl 90-18/06 awg 22 tin-plated ac centrifugal fans ? 121 x 37 mm series rl 90 nominal data
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