The Schneider Electric (Barber Colman) M573-5111 Piston Damper Actuator is a heavy-duty pneumatic damper actuator designed for precise positioning in commercial HVACR systems

Engineered for stable voltage regulation and terminal durability

The MK-3121 is rated for a maximum air pressure of 30 PSIG

to prevent the build-up of resistive oxides

Siemens Building Technology 540-670B Sensor 320735-701 The Schneider Electric (Barber Colman)The Siemens 540 670B is a TEC Room Sensor designed for integration with Siemens Building Technologies terminal equipment controllers. This unit provides precision room temperature sensing and features a local setpoint adjustment slider and a manual override button for temporary occupancy requests. Built for durability in commercial environments, the 540 670B utilizes a 10K Ohm Type II thermistor to ensure accurate HVAC automation feedback and stable