Description of the ATC sunroof front Sensor kit
The NL0243 – ATC Sunroof Front Sensor Kit plays a crucial role in maintaining the precision and reliability of NOVAL’s marine sliding roof systems. Acting as the “fully-closed position detector,” it communicates with the NL0129 control module to indicate the exact point at which the sunroof has reached its travel limit, ensuring:
- Safe operation: Prevents excessive movement and mechanical strain on drive mechanisms.
- Extended system life: Minimises wear on the transmission, belt, and actuators by halting motion at the right moment.
- Enhanced comfort: Delivers smooth, quiet, and consistent roof movements, even in challenging sea conditions.
Its mounting location—positioned beside the roof motor on the central guide rail—offers optimal detection accuracy and shields the component from harsh marine exposure. Crafted from marine-grade materials, the NL0243 withstands vibrations, saltwater corrosion, and prolonged UV exposure.
The kit includes:
- ATC front position sensor (Ref. AT0781)
- High-grade stainless steel A4 fixings
- Custom-designed support bracket
- Pre-terminated marine cable for direct connection and a watertight seal
From coastal cruising to offshore voyages, this sensor ensures your sliding sunroof system functions with maximum reliability.
Specifications
- Reference: NL0243
- Function: Detects fully-close position for ATC sliding sunroofs
- Sensor model: AT0781
- Kit contents: Sensor, screws, bracket, cable
- Location: Mounted beside roof motor on central track
Compatibility
The NL0243 is factory-tuned for the following NOVAL ATC marine sunroof models:
- Beneteau – Gran Turismo series with ATC sliding sunroofs
- Beneteau – Flyer 12 (Starboard sunroof sensor)
- Jeanneau – Leader range with ATC sliding sunroofs (Leader 40, Leader 46, etc.)
- Jeanneau – Prestige 440S
- Galeon – 435 GTO with ATC electric sunroof
- Sessa – C42 with electric hardtop
Installation / Maintenance
Installation steps:
(Documentation available after order confirmation)
- Disconnect all electrical power before starting work on the roof system.
- Locate the fixing point on the central track next to the motor assembly.
- Attach the bracket using the provided A4 stainless steel screws.
- Route the pre-terminated cable to the control box, avoiding pinch or chafing points.
- Test the opening cycle to verify correct sensor triggering.
Maintenance recommendations:
- Inspect every 6 months for corrosion, cable damage, or connector wear.
- Rinse with fresh water after saltwater exposure, then dry with a soft cloth.
- Use dielectric grease on connectors to improve water resistance.
- Consider checking the rear sensor NL0241 when servicing the front sensor.
Our review
✔ Pros
- Pinpoint accuracy in roof position detection
- Complete plug-and-play marine kit
- Corrosion-resistant, UV-stable construction
✘ Cons
- Exclusively for NOVAL ATC systems—no cross-platform use
- A faulty sensor disables the closing function until replaced
Conclusion
For yacht owners and professional shipyards, the NL0243 ATC Sunroof Front Sensor Kit is an essential safeguard for your vessel’s electric sunroof. Beyond simply detecting position, it preserves your system’s mechanics, enhances onboard comfort, and ensures safety under all sea conditions. Using an original NOVAL sensor guarantees perfect calibration and reliability—an investment in both performance and peace of mind.
Good to Know
Always use OEM parts for ATC sunroofs; generic sensors risk improper calibration
Correct position sensing reduces strain on actuators, belts, and structural components—especially important in rough seas
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