Description
The Schneider Electric (Barber Colman) MA-318-303 is a 24V spring return actuator engineered for dependable damper and valve control in commercial and industrial HVAC applications. Carrying the trusted Barber Colman legacy now backed by Schneider Electric’s engineering standards, this actuator delivers consistent, fail-safe performance wherever precise airflow regulation is required.
Key Features
- 24V operating voltage for compatibility with standard commercial HVAC control systems
- Spring return (S/R) design ensures fail-safe positioning upon loss of power or signal
- Built-in auxiliary switch provides end-of-travel feedback for system integration and status monitoring
- 90° rotation range for full quarter-turn damper and valve actuation
- Compact, robust housing suited for demanding commercial HVAC environments
- Direct replacement for legacy Barber Colman MA-series actuators
Application
The MA-318-303 is ideal for use with dampers, zone control systems, air handling units, and VAV applications where spring return fail-safe operation is required. The integrated auxiliary switch allows the actuator to signal a building automation system or control panel when the actuator has reached its end position, enabling advanced sequencing and safety interlocking.
Why Choose the MA-318-303
- Fail-safe spring return operation protects building systems during power interruptions
- Auxiliary switch simplifies wiring for status feedback and interlock circuits
- Proven Barber Colman / Schneider Electric reliability for long service life
- Drop-in compatibility with existing MA-series installations reduces retrofit time and cost
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