Siemens 7Nm GMA Series Fail Safe Damper Actuators
Siemens Electronic motor driven actuators for two-position, three-position, and modulating control.
- Nominal torque 7 Nm, with spring return, self-centering shaft adapter
- Mechanically adjustable span between 0...90°
- Prewired with 0.9 m long connection cables.
- Type-specific variations with adjustable offset and span for the positioning signal, position indicator, feedback potentiometer and adjustable auxiliary switches for supplementary functions.
- For damper areas up to 1.5 m2, friction-dependent.
- Use In ventilation sections where the actuator must move to the zero position (emergency position) during power failure.