Description
The Trane ACT0403 is a 24-volt spring-return, normally open (N/O) actuator designed for precise and dependable valve control in commercial and light-industrial HVAC applications. Engineered to Trane’s exacting OEM standards, this actuator provides failsafe operation through its spring-return mechanism — automatically returning the valve to the normally open position upon loss of power, ensuring system safety and process continuity.
Key Features
- 24V operating voltage for compatibility with standard low-voltage HVAC control systems
- Spring-return (S/R) failsafe action — returns to normally open (N/O) position on power loss
- Integrated conduit connection for clean, code-compliant wiring installations
- OEM Trane replacement part — engineered for direct compatibility with Trane systems
- Robust construction for long-term reliability in demanding commercial HVAC environments
- Compact design for straightforward installation in tight mechanical spaces
Application
The ACT0403 is ideal for use in Trane air handling units, fan coil units, and hydronic systems where failsafe valve positioning is required. The normally open configuration ensures continued fluid flow in the event of a power interruption, making it well-suited for heating applications and other processes where an open-default position is critical.
Why Choose the Trane ACT0403?
As a genuine Trane actuator, the ACT0403 ensures seamless integration with existing Trane equipment, maintaining system performance and warranty compliance. The built-in conduit fitting simplifies field wiring and supports clean, professional installations that meet electrical code requirements.







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