Interrupteur de montant de porte

Des solutions simples pour une performance et une sécurité fiables

Préservez le bon fonctionnement de votre éclairage intérieur et renforcez la sécurité de votre véhicule grâce à nos interrupteurs de porte robustes. Conçus pour une performance fiable et une durabilité exceptionnelle, nos interrupteurs garantissent un fonctionnement optimal à chaque ouverture et fermeture de portière.

Pourquoi choisir les interrupteurs de montant de porte Daier ?

Fonctionnalités fluides : Les interrupteurs de montant de porte Daier offrent un fonctionnement momentané ON-(OFF) fiable, activant vos lumières intérieures à l'ouverture de la porte et les désactivant à sa fermeture.
Sécurité accrue des véhicules : Outre le contrôle de l'éclairage intérieur, nos interrupteurs de porte peuvent également déclencher le système d'avertissement de « porte entrouverte » des véhicules récents, vous alertant si une porte n'est pas correctement fermée.
Conçus pour durer : Ces interrupteurs de montant de porte automobile sont fabriqués en métal robuste avec un couvercle de protection étanche, conçus pour résister à une utilisation constante et à des environnements difficiles.
Compatibilité universelle : Nos interrupteurs de montant de porte sont disponibles avec des trous de fixation de 8 mm et 9,5 mm, offrant une compatibilité polyvalente avec divers véhicules et en faisant une pièce de rechange idéale pour différentes marques et modèles.

Parcourez dès aujourd'hui notre sélection d'interrupteurs de porte et trouvez la pièce de rechange idéale pour votre véhicule.

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Interrupteur à broche de porte momentané 20A 12VDC, 3 pièces, avec botte en caoutchouc

PIN-10R

$7.79

3 pièces interrupteur momentané à broche de montant de porte automatique 12VDC 20A

PIN-7

$9.99

Kit de contacteur de porte coulissante pour alarmes de voiture et verrouillage centralisé, à piston universel à 2 broches pour fourgonnette, camion et camping-car.

PIN-3

$14.29

Door Jamb Switches: Essential Sensors for Automotive Lighting and Security

Automate Your Vehicle’s Security and Convenience Systems

While small in size, the door jamb switch (often called a door pin switch) plays a pivotal role in a vehicle's electrical ecosystem. Acting as a momentary sensor, this device detects the physical state of doors, hoods, and trunks. Whether replacing a corroded OEM part or installing a custom aftermarket alarm, a high-quality door switch ensures that interior lights activate instantly upon entry and that security systems are triggered effectively if a breach occurs.

Key Features for Reliability and Longevity

Momentary ON-(OFF) Functionality: These switches typically operate on a "normally closed" principle (circuit completes when the button is released/door opens). This ensures instant activation of dome lights or dashboard "door ajar" warnings the moment a door is unlatched.

Weather-Resistant Design: To combat corrosion—the leading cause of switch failure—many models are equipped with flexible protective rubber boots. This seals the internal mechanism against moisture, dust, and road grime, ensuring reliable contact even in exposed areas like engine bays or truck tailgates.

Adjustable & Universal Fit: Designed for versatility, metal-body switches often feature long, threaded shafts with adjustable nuts. This allows installers to fine-tune the switch length to match the specific gap of the door or hood, making them ideal universal replacements for various vehicle makes and models.

Durable Materials: Constructed from nickel-plated iron or high-impact plastic, these contacts are engineered to withstand thousands of compression cycles without mechanical fatigue.

Versatile Applications in Automotive Circuitry

Door pin switches are fundamental components for both restoration and customization projects:

Courtesy Lighting: Automatically turning on interior ceiling lights, footwell LEDs, or puddle lights when a passenger enters or exits.
Car Alarm Systems: Serving as the primary trigger point for security alarms when a door, hood, or trunk is forced open.
Engine Bay & Trunk Lighting: providing automatic illumination for maintenance or cargo loading by installing switches under the hood or in the boot lid.

Selecting the Correct Door Pin Switch

When choosing a replacement door jamb switch, consider the mounting hole diameter and the necessary reach (length) of the pin. For exterior applications, such as under-hood alarm triggers, prioritize models with waterproof rubber covers to prevent rust. For interior door frames, ensure the thread length allows for proper adjustment to guarantee the light turns off fully when the door is closed.

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Frequently Asked Questions

Door jamb switches, often called door pin switches, are critical sensors used to automate a vehicle’s electrical functions based on the door’s position. Their most common applications include automatically triggering interior dome lights when a door opens or signaling the vehicle’s security system that a door, hood, or trunk has been accessed.

Standard pin switches (e.g., PIN-7 or PIN-10) work by physical compression of a spring-loaded shaft. In contrast, Sliding Door Contact Kits are designed specifically for the side doors of vans or campers where a traditional pin switch cannot be mounted. These kits use two mating contact plates to transfer power for central locking or alarm triggers only when the sliding door is fully closed and the plates touch.

Yes. Universal metal door pin switches are designed with adjustability in mind. Most models feature a threaded body or a trimmable pin. This allows the user to cut or screw the pin to the exact length required to ensure the switch activates reliably without the door panel putting excessive pressure on the mounting point.

The rubber boot acts as a protective weather seal. Since door jambs are often exposed to rain, road salt, and dirt, the boot prevents these elements from entering the internal spring mechanism. This significantly reduces the risk of the switch "sticking" or corroding, which is a frequent cause of interior lights staying on or failing to activate.

In most traditional automotive installations, the switch body itself serves as the electrical ground when it is screwed directly into the metal chassis of the vehicle. However, for the Sliding Door Contact Kit (PIN-3) or when mounting switches on non-conductive surfaces (like fiberglass or plastic), dedicated wiring leads must be used to complete the circuit.

Door switches are often sold in 3-piece sets or complete kits because vehicle maintenance or camper van conversions usually require replacing switches for multiple entry points simultaneously (e.g., driver door, passenger door, and trunk). Purchasing a set ensures consistent sensitivity and appearance across all doors, and provides spare components for future maintenance.