WLNJ-S2-N

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Snap action, Limit switches are switches that “snap” into place when set thresholds are reached, either by mechanical action or electrical signals. WLNJ-S2-N is one type of snap action limit switch that has a variety of applications. In this article, we will explore the application field and working principle of this switch.

The WLNJ-S2-N snap action limit switch is a general-purpose two-circuit, open single pole double throw (SPDT) switch. It is small and lightweight, having a total size of 24.7mm x 21.6mm x 8.3mm and weighing approximately 7 grams. It has a variety of applications, including but not limited to, appliance control, serving as a sensor in industrial automation systems, monitoring processes in fire detection, security, and HVAC systems, and as a control switch in motor run and stop applications.

In addition to the wide range of applications, the WLNJ-S2-N is a great value switch due to its low cost and durable construction. This switch is composed of a variety of materials and parts, including a flexible metal armature that is magnetically actuated; a moveable dust cover to help protect the armature; a bimetallic disc that provides the snap action of the switch; electrical contacts encased in protective technology blocks which help provide additional protection for the switch’s terminals; and a liquid proof seal which helps make the switch waterproof.

The working principle of the WLNJ-S2-N is fairly simple. When the switch is activated, the metal armature is drawn towards the center of the switch due to the attractive force of the magnet. This causes the bimetallic disc to bend, which results in the SPDT switch being opened. When the metal armature is released, the bimetallic disc quickly snaps back into place, causing the switch to close.

The WLNJ-S2-N is a reliable and cost-effective snap action limit switch that has a variety of applications. Its simple design and durable construction make it an attractive option for a wide range of applications. Furthermore, it is waterproof and provides extra protection for the terminals to ensure a long life.

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