{"id":3860,"date":"2025-08-12T17:30:33","date_gmt":"2025-08-12T15:30:33","guid":{"rendered":"https:\/\/nauticspares.com\/?post_type=product&#038;p=3860"},"modified":"2026-05-11T12:48:39","modified_gmt":"2026-05-11T10:48:39","slug":"marine-grade-open-position-sensor-for-noval-atc-sunroofs-nl0241","status":"publish","type":"product","link":"https:\/\/nauticspares.com\/en\/product\/marine-grade-open-position-sensor-for-noval-atc-sunroofs-nl0241\/","title":{"rendered":"Marine-grade open position sensor for NOVAL ATC sunroofs \u2013 NL0241"},"content":{"rendered":"<h2>Description of the NL0241 open position sunroof sensor<\/h2>\n<p>The <strong>NL0241 ATC Sunroof Rear Sensor Kit<\/strong> is a vital position-detection component within NOVAL&#8217;s <strong>marine sliding roof systems<\/strong>. Acting as the open-position sentinel, it communicates directly with the control unit <a href=\"https:\/\/nauticspares.com\/en\/product\/electronic-control-box-for-noval-atc-sliding-roofs-nl0129\/\" title=\"NL0129\">NL0129<\/a> the precise moment the sunroof panel reaches its maximum travel \u2014 a function that is essential for protecting mechanical integrity and ensuring safe, repeatable operation aboard any vessel.<\/p>\n<p>When the roof reaches its fully open position, the NL0241 cuts the motor drive signal, preventing overtravel and eliminating unnecessary mechanical stress on the belt, actuators, and rail components. In demanding offshore environments \u2014 where wave action, vibration, and salt exposure are constant \u2014 precise end-of-travel detection is not a luxury, but a necessity.<\/p>\n<p>Mounted on the central track adjacent to the roof motor unit, the sensor&#8217;s location has been optimised for detection accuracy while maximising its protection from the marine environment. Built from <strong>marine-grade materials<\/strong>, the NL0241 is engineered to withstand UV degradation, salt spray, and the mechanical vibrations inherent to nautical use.<\/p>\n<p>The complete kit is delivered ready for installation and includes everything required for a professional-grade fit-out:<\/p>\n<ul>\n<li>ATC rear position sensor (Ref. AT0778)<\/li>\n<li>Stainless steel A4 fasteners<\/li>\n<li>Purpose-built mounting bracket<\/li>\n<li>Pre-cut marine cable for optimal routing with a waterproof connector<\/li>\n<\/ul>\n<p>This sensor operates as an integral part of the NOVAL ATC ecosystem, working in coordination with:<\/p>\n<ul>\n<li><strong>Control unit <a href=\"https:\/\/nauticspares.com\/en\/product\/electronic-control-box-for-noval-atc-sliding-roofs-nl0129\/\" title=\"NL0129\">NL0129<\/a><\/strong> \u2013 the central brain of the ATC system<\/li>\n<li><strong>Close position sensor <a href=\"https:\/\/nauticspares.com\/en\/product\/marine-grade-close-position-sensor-for-noval-atc-sunroof-nl0243\/\" title=\"NL0243\">NL0243<\/a><\/strong> \u2013 detecting the fully closed position at the forward end<\/li>\n<li><strong>Motor kit <a href=\"https:\/\/nauticspares.com\/en\/product\/atc-sunroof-motor-kit-nl0242\/\" title=\"NL0242\">NL0242<\/a><\/strong> \u2013 the drive unit operating the belt transmission<\/li>\n<\/ul>\n<p>Together, this synchronized architecture guarantees:<\/p>\n<ul>\n<li>Accurate and repeatable roof positioning on every cycle<\/li>\n<li>Protection against end-of-travel overrun and structural overload<\/li>\n<li>Extended service life of belts, rails, and all moving components<\/li>\n<li>Smooth, noise-free operation \u2013 even in rough sea conditions<\/li>\n<\/ul>\n<p>The NL0241 is factory-calibrated for use across a broad range of premium yacht platforms and is the OEM-specified replacement part for any NOVAL ATC system requiring rear sensor servicing or renewal.<\/p>\n<h2>Specifications<\/h2>\n<ul>\n<li><strong>Reference:<\/strong> NL0241<\/li>\n<li><strong>Function:<\/strong> Roof fully-open position detection for ATC sunroofs (rear sensor)<\/li>\n<li><strong>Sensor model:<\/strong> AT0778<\/li>\n<li><strong>Kit contents:<\/strong> (x1) Sensor, (x1) mounting bracket, (x2) A4 stainless steel screws, (x1) pre-cut marine cable with waterproof connector<\/li>\n<li><strong>Mounting location:<\/strong> Central track, adjacent to the roof motor unit bracket<\/li>\n<li><strong>Compatible control unit:<\/strong> <a href=\"https:\/\/nauticspares.com\/en\/product\/electronic-control-box-for-noval-atc-sliding-sunroof-nl0129\/\" title=\"NL0129\">NL0129<\/a><\/li>\n<li><strong>Complementary sensor:<\/strong> <a href=\"https:\/\/nauticspares.com\/en\/product\/marine-grade-close-position-sensor-for-noval-atc-sunroof-nl0243\/\" title=\"NL0243\">NL0243 (close position = front sensor)<\/a><\/li>\n<\/ul>\n<h2>Compatibility<\/h2>\n<p>The NL0241 is factory-calibrated for the following <strong>NOVAL ATC marine sunroof applications<\/strong>:<\/p>\n<ul>\n<li><a title=\"Beneteau Gran Turismo\" href=\"https:\/\/www.beneteau.com\/motor-yachts\/gran-turismo\" target=\"_blank\" rel=\"noopener\"><strong>Beneteau \u2013 Gran Turismo<\/strong><\/a> range with ATC sliding sunroofs<\/li>\n<li><a title=\"B\u00e9n\u00e9teau Flyer 12\" href=\"https:\/\/www.beneteau.com\/flyer-2004-2016\/flyer-12-cabin#redirect=beneteau\" target=\"_blank\" rel=\"noopener\"><strong>Beneteau \u2013 Flyer 12<\/strong><\/a> (starboard sunroof sensor)<\/li>\n<li><strong>Jeanneau \u2013 Leader<\/strong> range with ATC sliding sunroofs (<a title=\"Jeanneau Leader 40\" href=\"https:\/\/www.jeanneau.com\/boats\/powerboat\/8-leader\/22-leader-40\" target=\"_blank\" rel=\"noopener\">Leader 40<\/a>, <a title=\"Jeanneau Leader 46\" href=\"https:\/\/www.jeanneau.com\/boats\/powerboat\/8-leader\/23-leader-46\" target=\"_blank\" rel=\"noopener\">Leader 46<\/a>, etc.)<\/li>\n<li><a title=\"Prestige 440S\" href=\"https:\/\/www.prestige-yachts.com\/anciens\/85-prestige-440s\" target=\"_blank\" rel=\"noopener\"><strong>Jeanneau \u2013 Prestige 440S<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/galeon.pl\/en\/model\/435-gto-2\/\" target=\"_blank\" rel=\"noopener\"><strong>Galeon \u2013 435 GTO<\/strong><\/a> with integrated ATC electric sunroof<\/li>\n<li><a title=\"Sessa C42\" href=\"https:\/\/yacht.sessamarine.com\/en\/yacht\/c42-yacht-line\/\" target=\"_blank\" rel=\"noopener\"><strong>Sessa \u2013 C42<\/strong><\/a> with hardtop electric sliding roof<\/li>\n<\/ul>\n<h2>Installation \/ Maintenance<\/h2>\n<h3>Installation<\/h3>\n<ol>\n<li>Cut all electrical power to the roof system before beginning work.<\/li>\n<li>Identify the mounting location on the central track, adjacent to the motor unit.<\/li>\n<li>Secure the bracket using the A4 stainless steel screws supplied in the kit.<\/li>\n<li>Route and connect the pre-cut cable to the control unit NL0129, ensuring no chafing points along the run.<\/li>\n<li>Perform a full opening cycle to confirm correct end-of-travel detection.<\/li>\n<\/ol>\n<h3>Maintenance<\/h3>\n<ul>\n<li>Inspect biannually for corrosion, cable wear, or connector oxidation.<\/li>\n<li>Rinse with fresh water after salt spray exposure and dry with a soft cloth.<\/li>\n<li>Apply dielectric grease to connectors to maintain waterproof integrity.<\/li>\n<li>When replacing the rear sensor NL0241, always inspect the front close sensor <a href=\"https:\/\/nauticspares.com\/en\/product\/marine-grade-close-position-sensor-for-noval-atc-sunroof-nl0243\/\" title=\"NL0243\">NL0243<\/a> simultaneously.<\/li>\n<\/ul>\n<div data-class=\"product-pros-cons-section\">\n<h2>Our review<\/h2>\n<div data-class=\"product-pros-cons-wrapper\">\n<div data-class=\"product-pros_cons product-pros\">\n<h3>\u2714 Pros<\/h3>\n<ul data-class=\"pros-cons-list\">\n<li>Pinpoint accuracy in roof open-position detection<\/li>\n<li>Complete plug-and-play marine kit \u2013 no additional hardware required<\/li>\n<li>Corrosion-resistant, UV-stable construction built for the marine environment<\/li>\n<\/ul>\n<\/div>\n<div data-class=\"product-pros_cons product-cons\">\n<h3>\u2718 Cons<\/h3>\n<ul data-class=\"pros-cons-list\">\n<li>Exclusively for NOVAL ATC systems \u2013 no cross-platform compatibility<\/li>\n<li>A faulty sensor disables the opening function entirely until replaced<\/li>\n<\/ul>\n<\/div>\n<div data-class=\"product-pros_cons product-conclusion\">\n<h3>Conclusion<\/h3>\n<p>For yacht owners and professional shipyards, the <strong>NL0241 ATC Sunroof Rear Sensor Kit<\/strong> is an essential safeguard for your vessel&#8217;s sliding roof. Beyond simply detecting position, it preserves your system&#8217;s mechanics, enhances onboard comfort, and ensures safety under all sea conditions. Using an original NOVAL sensor guarantees perfect calibration and reliability \u2014 an investment in both performance and peace of mind.\n<\/div>\n<div data-class=\"product-pros_cons product-good-to-know\">\n<h3>Good to Know<\/h3>\n<ul data-class=\"pros-cons-list\">\n<li>Always use OEM parts for ATC sunroofs \u2013 generic sensors risk improper calibration and system faults<\/li>\n<li>Correct position sensing reduces strain on actuators, belts, and structural components \u2013 especially critical in rough seas<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The <strong>NL0241 \u2013 ATC Sunroof Rear Sensor Kit<\/strong> is a critical position-detection component for NOVAL ATC marine sliding roof systems. It signals the exact fully-open position to the control unit, preventing overtravel and protecting all drive mechanics onboard.<\/p>\n<ul>\n<li>Open-position sentinel for NOVAL ATC sliding sunroofs<\/li>\n<li>Compatible with: control unit <a href=\"https:\/\/nauticspares.com\/en\/product\/electronic-control-box-for-noval-atc-sliding-roofs-nl0129\/\" title=\"NL0129\">NL0129<\/a><\/li>\n<p> + the motor <a href=\"https:\/\/nauticspares.com\/en\/product\/atc-sunroof-motor-kit-nl0242\/\" title=\"NL0242\">NL0242<\/a> + the close position sensor <a href=\"https:\/\/nauticspares.com\/en\/product\/marine-grade-close-position-sensor-for-noval-atc-sunroof-nl0243\/\" title=\"NL0243\">NL0243<\/a>.<\/p>\n<li>Complete plug-and-play marine kit \u2013 1 rear sensor, 1 bracket, 1 cable, and 2 fasteners included<\/li>\n<li>Corrosion-resistant, UV-stable, marine-grade construction<\/li>\n<li>Designed for Beneteau, Jeanneau, Prestige, Galeon, and Sessa vessels<\/li>\n<\/ul>\n","protected":false},"featured_media":3906,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[121,93],"product_tag":[1256,423,1257,1255],"class_list":["post-3860","product","type-product","status-publish","has-post-thumbnail","product_cat-electrical","product_cat-spare-parts","product_tag-atc","product_tag-noval-2","product_tag-sensor","product_tag-sunroof","product_shipping_class-small-2","first","instock","downloadable","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/nauticspares.com\/en\/wp-json\/wp\/v2\/product\/3860","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nauticspares.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/nauticspares.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/nauticspares.com\/en\/wp-json\/wp\/v2\/comments?post=3860"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nauticspares.com\/en\/wp-json\/wp\/v2\/media\/3906"}],"wp:attachment":[{"href":"https:\/\/nauticspares.com\/en\/wp-json\/wp\/v2\/media?parent=3860"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/nauticspares.com\/en\/wp-json\/wp\/v2\/product_brand?post=3860"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/nauticspares.com\/en\/wp-json\/wp\/v2\/product_cat?post=3860"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/nauticspares.com\/en\/wp-json\/wp\/v2\/product_tag?post=3860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}