IP68 DC axial fans RATING Series 600 NU 60 x 60 x 25 mm Speed Temperature range Mass Ingress Protection Rating UL Approval Curves -20...70 66 IP68 Yes 1 5.3 Yes 2.1 5600 -20...70 66 IP68 Yes 1 5.7 Yes 2.9 6850 -20...70 66 IP68 Yes 2 VDC VDC dB(A) Bel(A) 612 NHU-181 25.3 12 8...15 37 5.3 614 NHU 25.3 24 18...26 37 614 NHHU-286 33.0 24 18...26 41 0.55 0.50 0.45 2 0.40 0.35 1 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0 5 10 15 20 25 30 35 [CFM] 5 Ball bearings 5600 Sound power level 1.8 Sound pressure level Yes Voltage range g Nominal voltage oC Air flow RPM CFM Curves [in. H2O] Watts Type Nominal Data P Power input Highlights: - Motor protection against reverse polarity and locking. - Air exhaust over struts - Connection via 310 mm strands AWG 22, TR 64, bared and tin-plated - Ingress protection rating of IP68 Material: Housing: Fiberglass-reinforced PBT composite Impeller: Fiberglass-reinforced PA composite Direction of rotation: Clockwise, seen on rotor