Description of the electric control box NL1796 for motorized aft glazed door – 12V DC
The NL1796 electric control box is the original electronic unit that drives the motorized aft glazed door (rear bay) between the cockpit and the saloon on the Jeanneau Leader 46 and the first-generation Beneteau Gran Turismo 40 (2016–2020). Designed and manufactured in France by NOVAL Yacht Automation, it is the same part as the one fitted at the shipyard. It is the exact reference to order when the aft door of your motor yacht no longer responds to its control.
Housed in a compact enclosure installed close to the door mechanism, this marine control unit coordinates the three motorized components of the aft entrance:
- the electric safety latch, which locks the door in the closed position;
- the two linear actuators (port and starboard), which move the glazed panel;
- the wired control switch on the boat’s harness.
The box handles the opening and closing sequence automatically, releasing and re-engaging the latch at the right time and driving both actuators together for a balanced, controlled movement.
Built for the onboard environment, the NL1796 runs on the yacht’s 12V DC house supply. It connects to the boat’s existing wiring through dedicated plug-in connectors, so replacement requires no splicing or modification of the harness. On a yacht where the electrical installation and the motorized components are in good condition, swapping the box restores the original operation of the aft door.
Not sure the control box is the faulty component? Before ordering, our technical team can help you carry out a step-by-step diagnosis of your aft door system: power supply, control switch, latch and actuators. Detailed technical documentation (wiring architecture, connector layout, troubleshooting procedures) is supplied to customers once the purchase is confirmed.
Specifications
- Type: Electric control box for motorized aft glazed door
- Manufacturer: NOVAL Yacht Automation (France)
- Power supply: 12V DC
- Max. current draw (complete system): 15 A
- Controlled equipment: 1 electric latch + 2 linear actuators
- Control: Wired up/down switch (ON-OFF-ON momentary)
- Connection: Plug-in connectors to the boat’s original harness
- Compatible yachts: Jeanneau Leader 46, Beneteau Gran Turismo 40 (first generation)
Installation / Maintenance
Installation:
- The NL1796 replaces the original box in its existing location and plugs directly into the boat’s wiring.
- Switch off the 12V supply before disconnecting the old unit, then make sure every connector is fully engaged and locked before powering up again.
- Operating logic: a single press opens the door; closing requires holding the switch until the movement is complete.
Maintenance:
- The control box itself requires no routine maintenance.
- Periodically inspect the connectors for moisture or corrosion, especially on yachts operating in salty or humid conditions.
- Keep the latch and the door mechanism clean so the system operates without excess load.
Our review
✔️ Pros :
- Original OEM part, identical to the shipyard fit.
- Plug-in replacement, with no modification to the boat’s wiring.
- Manages the latch and both actuators automatically for a secure opening and closing sequence.
- Technical support from the manufacturer’s team for diagnosis.
❌ Cons :
- Dedicated to the aft door system of the Leader 46 and first-generation Gran Turismo 40; not a universal unit.
- 12V DC supply only.
- Several latch generations exist on these yachts, so the version fitted must be confirmed before ordering.
Conclusion
The NL1796 is the right choice if you own a Jeanneau Leader 46 or a first-generation Beneteau Gran Turismo 40 and your motorized aft door has stopped operating because of a faulty control box. As the original part, it guarantees full compatibility with your yacht’s harness, latch and actuators. If you are unsure where the fault lies, or which latch generation your boat is fitted with, contact us before ordering: our team will help you confirm the diagnosis so you order the right part the first time.
Good to Know
- Powered by 12V DC: the supply must be able to deliver up to 15 A while the door is moving.
- Compatible with the Jeanneau Leader 46 and the first-generation Beneteau Gran Turismo 40.
- Please give us your hull number or year of build when ordering, so we can confirm the version matching your latch.
- Detailed technical documentation is supplied once the purchase is confirmed.
- Free pre-purchase diagnosis assistance: contact@nauticspares.com or WhatsApp +33 6 33 30 44 50.
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