The SRA81 series electric damper actuators adopt an imported DC motor or brushless motor to provide power with a torque of 5 Nm. They are widely used in building ventilation applications and feature mechanical reset upon power loss and electric restart. The actuators support more than 30,000 repeated operating cycles.
Fast and reliable reset in case of power failure or emergency
The actuator is equipped with a high-precision control system for precise execution and positioning
Position Indication
| Basic Information | ||||||||
| Torque | 5Nm | |||||||
| Suitable Damper Size | Under normal wind resistance, 1NM matches 0.1 square meter (indude airtight valve matching scheme) | |||||||
| Rotation Direction | Manual adjustment available | |||||||
| Manual Operation | Available in all series | |||||||
| Rotation Angle | 90°/95° Full stroke can be adjusted by mechanical limit | |||||||
| Run Time | Adjustable within the parameter range | |||||||
| Noise Level | Motor running 46db, spring reset 62db | |||||||
| Position Indication | mechanical indication | |||||||
| Dimension | See Dimension drawing | |||||||
| Length Of Shaft | >50mm | |||||||
| Size of Shaft | 10-20 Round Shaft 10x10..16x16 Round Shaft | |||||||
| Weight | <1.8 kg | |||||||
| Operating Conditions | ||||||||
| Electrical Grade | III (Safety low voltage) II (Double insulation) | |||||||
| IP Grade | IP54 | |||||||
| Working Environment Temperature | -20...+50°C[-4...+122°F] | |||||||
| Storage Ambient Temperature | -30... +80°C[-22...176°F] | |||||||
| Temperature Test | 95% RH, non-condensing /EN 60730-1 | |||||||
| Electrical overview | ||||||||
| Rated Voltage | AC24V 50/60Hz DC24V /AC100..240V 50/60Hz | |||||||
| Rated Voltage Range | AC/DC 19.2...28.8 V /AC 85...265 V | |||||||
| Power Consumption | Run status standby status | |||||||
| Cable Size | 0.5 mm2 | |||||||
| Auxiliary Switch Rating | 3 A, AC 230 V | |||||||
