Description
The Trane ACT0343 is a spring-return direct coupled actuator engineered for dependable damper control in commercial and residential HVAC applications. Featuring a 35 lb-in torque output, this actuator provides the driving force needed to reliably position dampers in air handling units, VAV systems, and other ductwork assemblies. The spring-return mechanism ensures the damper defaults to a safe, fail-safe position upon loss of power — a critical feature for life-safety and energy-efficiency applications.
Key Features
- 35 lb-in torque output for positive damper positioning
- Spring-return (S/R) fail-safe operation — returns to default position on power loss
- Direct coupled design — mounts directly to damper shaft without crank arms or linkages
- 8-inch wire leads for flexible field wiring
- Molex connector for quick, secure electrical connection
- Genuine Trane OEM replacement part
Application
The ACT0343 is ideal for use in Trane air handling units, rooftop units, and damper control assemblies where a compact, direct-coupled spring-return actuator is required. The Molex connector simplifies installation and ensures a reliable, vibration-resistant electrical connection in demanding HVAC environments.
Why Choose Trane OEM Parts?
Using genuine Trane replacement actuators ensures compatibility, performance, and longevity. OEM parts are designed and tested to meet Trane’s exact specifications, reducing the risk of premature failure and costly callbacks.
Product Specifications
- SKU: ACT0343
- Brand: Trane
- Torque: 35 lb-in
- Operation: Spring Return (fail-safe)
- Mounting: Direct Coupled Actuator (DCA)
- Lead Length: 8 inches
- Connector Type: Molex







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