lindab | dampers and measure units Motorized alternating shut-off damper Technical data for the motors TATBU NM 24 A-F NM 230 A-F Power supply . AC 19,2–28,8 V, 50/60 Hz AC 85–265 V, 50/60 Hz DC 19,2–28,8 V Power consumption . 1,5 W 2,5 W For wire sizing . Connection . 3,5 VA Cable 1 m, 3×0,75 mm 2 6 VA Cable 1 m, 3×0,75 mm 2 – + Operating angle . Max. 95°, adjustable 0–100% Max. 95°, adjustable 0–100% Torque at rated voltage . Min. 10 Nm Min. 10 Nm Direction of rotation . Switch selectable Switch selectable Position indication . 0 or 1 Mechanical 0 or 1 Mechanical 1 2 3 Running time for 95° . 150 s 150 s Sound power level. Max. 35 dB (A) Max. 35 dB (A) Protection class. III Safety extra-low voltage II Safety insulated 0 Protection type . IP 54 IP 54 1 Ambient temperature range . -30 to +50°C -30 to +50°C Ambient moisture . 95 % RH 95 % RH – + 0 1 2 3 0 1 Technical data The dashed pressure drop curves refer to the flow direction in the right picture. Δ p t 100 125 160 200 250 315 400 Ø [mm] [P a ] 300 200 100 50 10 5 1 10 50 50 100 100 500 500 1000 q 1000 2000 [l/ s ] 5000 [m 3 /h] DUCT-MC Lindab reserves the right to make changes without prior notice 2 Identification number 17.11.002 2020-09-10
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