Neptronic LT380 Actuator

The Neptronic LT380 Actuator is a heavy-duty non-spring return linear actuator designed for precise damper control and valve automation in commercial HVACR systems. Built for the rigors of field service, this unit provides 140 in-lb torque and features a dual-voltage internal transformer compatible with 120V or 240V AC power supplies. The flexible control logic allows for 2-wire 2-position (on/off) or 4-wire 3-point floating configurations, making it a versatile drop-in for various BMS integration projects. Utilizing the patented Enerdrive System, the LT380 ensures a reliable electronic fail-safe position upon power loss without the mechanical fatigue of traditional springs. For manual commissioning or emergency overrides, the integrated clutch button permits easy positioning. This L-Series actuator also includes two auxiliary switches for end-stop feedback, ensuring accurate status monitoring for building automation controllers.

• Dual-Voltage Flexibility: Field-selectable 120/240V operation eliminates the need for multiple SKUs on the service truck.
• High-Torque Performance: Delivers 140 in-lb (16 Nm) to handle large dampers and high-pressure valves.
• Enerdrive Fail-Safe: Advanced electronic fail-safe technology provides 100% duty cycle reliability.
• Auxiliary Feedback: Factory-installed end switches facilitate seamless integration with supervisory control systems.
• Veteran-Grade Durability: Maintenance-free brushless motor and rugged housing designed for industrial mechanical rooms.

How do I switch the LT380 between 120V and 240V?
The voltage is selected via an internal slide switch. Ensure power is disconnected before adjusting the selector to match your line voltage.

Can this replace an older Neptronic LT080 or LT320?
Yes, the LT380 is part of the upgraded L-Series. It serves as a direct replacement or upgrade for several legacy TBTHV and LDTHV models. Always verify shaft diameter and mounting clearance.

What is the typical running time for this actuator?
The standard running time through a 90-degree stroke is approximately 60 to 85 seconds, depending on the torque load and control signal.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.