dc centrifugal fans series rg 160 nu 220 x 220 x 56 mm highlights: C backward curved impeller C motor protection against reverse polarity and locking. C direction of air fow: axial air intake, centrifugal air exhaust C connection via single strands awg 22, tr 64, bared and tin-plated C ingress protection rating of ip68 material: impeller: fiberglass-reinforced composite housing: fiberglass-reinforced composite scroll baseplate: steel direction of rotation: counterclockwise, seen on rotor nominal data air fow nominal voltage voltage range sound pressure level sound power level ball bearings power input speed temperature range mass ingress protection rating ul approval curves type cfm vdc vdc db(a) bel(a) watts rpm o c g rg 160-28/14nu 123.0 24 12...28 - 6.6 yes 20 2850 -20...55 1430 ip68 yes 1 rg 160-28/18nu 123.0 48 28...60 - 6.6 yes 20 2850 -20...70 1430 ip68 yes 1 [in. h 2 o] [cfm ] p v ? 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 1. 2 1. 4 1. 6 02 04 06 08 01 00 12 0 1 21 ip 68 ra ting curves
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