Description
VCP non-spring return damper actuators are suitable for various applications, including motorized control of dampers in ventilation systems such as Building Automation Systems (BAS), Building Management Systems (BMS), or Heating, Ventilation, and Air Conditioning (HVAC) environments.
Solutions for VCP non-spring return damper actuators are ideal for controlling dampers, air handlers, economizer units, VAV terminal units, fan coil units, fan shutters, and unit ventilators.
VCP non-spring return damper actuators are direct-mounted on standard damper shafts to control dampers.
The RA4-series non-spring return damper actuators, with torque of 4 Nm, are used to regulate dampers up to approximately 1.0 m².
The 4 Nm non-spring return damper actuators (RA4 24D and RA4 220D) offer control signals in on/off (two-position) or 3-point (3-point floating/tri-state) configurations.
The RA4 24V model offers a control signal of 0-10 Vdc, while the RA4 24C model supports a control signal of 4-20 mA.
Auxiliary switches are equipped on digital models (on/off or 3-point), including RA4 24D S1 and RA4 220D S1, and on analog models (0-10 Vdc or 4-20 mA), including RA4 24V S2 and RA4 24C S2.
A feedback signal is standard on all RA4-series models with analog control signals.
The RA4-series actuators feature a position indicator, manual override via push button, and a direction of rotation changeable via a switch on the PCB.
The running time for all RA4-series non-spring return damper actuators is 35 seconds.