BELIMO SM230A OPEN-CLOSE NON-SPRING-RETURN DAMPER ACTUATOR 20NM, 230VAC, 50/60HZ (REPLACED:SMU230)
Replaced (Wiring same but size different)
SMU230
AM230-C22
SM220
SM230
SM240
ASLI Brand Equivalent
ASLI NACA-2-16
Replaced (Wiring same but size different)
SMU230
AM230-C22
SM220
SM230
SM240
ASLI Brand Equivalent
ASLI NACA-2-16
Damper actuator for adjusting dampers in technical building installations
• Air damper size up to approx. 4 m²
• Torque motor 20 Nm
• Nominal voltage AC 230 V
• Control Open/close, 3-point
Problem Solving
I am having problem in the wiring for the Belimo SM230A types. IN the wiring diagram terminal 1 is for the O Vac and If I apply Voltage to the Terminal 2 at the actuator, I think the actuator will rotate either left or right side depend on the selector switch. Is that right.?
Apply voltage to terminal 2 - (0 degree to 90 degree)
Apply voltage to terminal 3 - (90 degree to 0 degree)
if you switch is (orange circle up), rotation will terbalik
apply voltage to terminal 2 - (90 degree to 0 degree)
apply voltage to terminal 3 - (0 degree to 90 degree)
MY 1609 
US 1343 
CN 264 
AP 89 
GB 62 
SG 50 
AU 47 
CA 36 
