> Building Automation > Damper Actuators > MD5B-230-S,8751003000,Damper Actuator 5 Nm (45 in-lb) 
MD5B series damper actuators for operating air control dampers in ventilation and air-conditioning systems for building services installations
• For air control dampers up to approx. 1 m2 (1.2 yard2)
• Torque 5 Nm (45 in-lb)
• Nominal voltage AC/DC 230V
• Control: On/Off or 3-point
• Option Integrated auxiliary switch
Power supply: MD5B-230-S 230 V AC –60% to +15%, 50–60 Hz Power consumption: In operation: MD5B-230-S 1.5 W @ nominal torque At rest: MD5B-230-S 0.4 W For wire sizing: MD5B-230-S 3.5 VA Auxiliary switch 1×EPU, 1 mA…3 (0.5) A, 250 V AC Switching point (adjustable 0–100% ) Connection cable: Actuator 1 m (3.3 ft), 3×0.75 mm2 (AWG 18) Auxiliary switches 1 m (3.3 ft), 3×0.75 mm2 (AWG 18) Angle of rotation max. 95° (adjustable by mechanical stops) Torque min. 5 Nm (45 lb-in) @ nominal voltage Running time 150 s Direction of rotation Reversible with switch Position indication mechanical Standards conformity: EMC, emission SS EN 50081-1 EMC, immunity SS EN 50082-1 LVD Safety; MD5B-230-S SS EN 60335-1 Protection class: MD5B-230-S II Totally insulated Enclosure rating IP 54 Ambient humidity 95% r.H (EN 60730-1) Ambient temperature: Operation –30 to +50 °C (–22 to +122 °F) Storage –40 to +80 °C (–40 to +176 °F) Sound power level max. 35 dB (A) Maintenance Maintenance-free Weight: MD5B-230-S Approx 0.4kg (0.9 lb.)
