Description
The Schneider Electric (Barber Colman) M333A00 is a 24V proportional, non-spring return (NSR) damper actuator featuring convenient terminal block wiring and a built-in timeout function. Engineered for precise modulating control in commercial and light commercial HVAC applications, this actuator delivers reliable, repeatable performance in air handling, VAV, and building automation systems.
Key Features
- 24V operating voltage for compatibility with standard HVAC control systems
- Proportional (modulating) control for accurate positioning and airflow regulation
- Non-spring return (NSR) design — damper holds last position on power loss
- Terminal block wiring connections for fast, secure field installation
- Built-in timeout function provides added system protection and control flexibility
- Designed for use in commercial building automation and HVAC zoning applications
Application
The M333A00 is ideal for use with dampers in air handling units, VAV boxes, and other commercial HVAC systems requiring proportional modulating control. The non-spring return configuration makes it well-suited for applications where damper position retention on power loss is desired. Terminal block connectivity simplifies wiring during installation and servicing.
Brand Heritage
Originally manufactured under the Barber Colman brand, this actuator is now part of the Schneider Electric controls portfolio, continuing a legacy of quality and innovation in building automation and HVAC controls.
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