Integrated Safety: Features a lockable handle to facilitate secure lockout/tagout procedures during maintenance

Brushless DC Motor: Provides consistent operating speed and overload protection across the entire rotation range without the need for end-of-stroke switches

Precise Alignment: High-tolerance engineering ensures the VSM shaft remains perfectly centered on the actuator pinion to prevent mechanical wear

Is the S0504B000 compatible with older NuTone 679FL-A or B versions

Siemens Building Technology GMA151.1P Actuator 328140-751 Integrated Safety: Features a lockableFor contractors managing VAV terminals or multi zone air handlers, the Siemens GMA151. 1P provides a reliable 62 lb in torque solution for precise air flow control. This OpenAir GMA Series actuator is engineered for modulating control utilizing a 2 to 10 VDC input signal, ensuring responsive positioning for return air, exhaust, or bypass dampers. Built with a brushless DC motor, this unit offers stall protection and consistent performance without the