Belimo AFB24-SR-S : Spring Return Damper Actuator, 24VAC/DC, 180 in-lb, 2-10VDC (4-20mA) Proportional Control Signal, <95 Second Run Time, <20 Second Spring Return, (2) SPDT 3A (0.5A Inductive) @ 250V Auxiliary Switches, Damper Area up to 45 Sq.Ft., 5-Year Warranty
