230V NC Electric Thermal Actuator for Underfloor Heating Manifold

230V NC Electric Thermal Actuator – N58A IP54 for Underfloor Heating Manifolds

Take precise control of your underfloor heating system with the N58A 230V Normally Closed (NC) Electric Thermal Actuator. Designed for manifold branch valves, small valves, and dynamic balancing valves, this compact actuator is the electric drive component that keeps your home heating system running efficiently and quietly. Its IP54-rated polycarbonate shell offers solid protection against dust and moisture, making it a dependable choice for both residential and light commercial heating setups.

Key Features

• Paraffin Propulsion Element – Driven by PTC heating for smooth, reliable actuation every time.
• Spring Return Function – Valve automatically closes when power is cut off, ensuring fail-safe operation.
• Silent Operation – Runs without noise, so your home stays peaceful while the heating works.
• Travel Position Indicator – Easily see at a glance whether the valve is open or closed.
• Quick Nut Connection – M30×1.5 threaded connection allows fast installation and easy removal — no specialist tools needed.
• IP54 Rated – Protected against dust ingress and water splashes for long-lasting performance.

Technical Specifications

What's in the Box

• 1 × N58A Electric Thermal Actuator (230V NC)

Made in Mainland China.

Important Notes

• Product images are for illustration purposes only — please refer to the specifications above for exact dimensions.
• Minor measurement differences may occur due to manual measuring.
• Actual colour may vary slightly from on-screen images due to monitor calibration differences.

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Frequently Asked Questions

Q: What does "Normally Closed (NC)" mean for this electric thermal actuator?

A: A Normally Closed (NC) actuator means the valve is in the closed position by default when no power is supplied. When the actuator receives power (230V AC), it opens the valve. If power is interrupted, the built-in spring return mechanism automatically closes the valve — providing a fail-safe shutdown ideal for underfloor heating manifold systems.

Q: What valve connection size does this actuator fit?

A: This electric thermal actuator uses an M30 × 1.5 threaded nut connection, which is a standard size compatible with most manifold branch valves, small valves, and dynamic balancing valves commonly used in underfloor heating systems. Installation is quick and requires no specialist tools.

Q: How long does it take for the actuator to fully open or close?

A: The full travel time for this 230V NC thermal actuator is between 180 and 300 seconds (3–5 minutes). This gradual, controlled movement helps protect your heating system's valves from sudden pressure changes.

Q: Is this actuator suitable for outdoor or damp environments?

A: This actuator carries an IP54 rating, meaning it is protected against dust ingress and water splashes from any direction. It is rated for ambient temperatures between -5°C and 50°C, making it suitable for use in plant rooms, utility spaces, or areas with moderate moisture exposure — but it is not designed for full submersion or direct outdoor exposure to heavy rain.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.