WLNJ55LDN

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Snap action, limit switches have been used in the electrical industry for decades, and the WLNJ55LDN is no exception. This miniature-compact (only 10x15x25mm in size), single pole, double-throw (SPDT) device is designed to provide precision and dependable operation in difficult locations, in applications such as light dimming and motor/fan speed control.

The WLNJ55LDN is constructed with a simple mechanical action switch, and is activated by a plunger-operated lever arm. The mechanism is adjustable and the contact gap can range from 8.5mm to 10mm (see diagram 1). This plunger-operated switch is of the positive-opening design, which means that when the plunger setup is released, the contact gap will open with no further adjustment required (e.g. for spring tensions, etc.).

The WLNJ55LDN operates when the force exerted on the plunger lever arm acts on the mechanism’s contact arms. This force can be exerted by manual, mechanical, or pneumatic means. If the force applied is higher than the device’s predetermined setting, then the contact arms will snap open. If two positions are required, the WLNJ55LDN has two setting screws that allow for an adjustable load-break that will open the contact gap when the preset load is exceeded (diagram 1)

The contact gap, or load-break, of the WLNJ55LDN is adjustable for custom switch setups, or for the replacement of existing switches. As the plunger approaches its preset breaking point, the lever arm is subjected to an increased force which breaks the bridge contact open.

An important feature of the WLNJ55LDN is that, unlike some competing products in the market, it positively opens the contact gap when the preset load is exceeded. This ensures a safe and consistent break rate in applications that require a wide variety of adjustment and versatility.

The WLNJ55LDN can be used in a wide array of applications, including light dimming, motor/fan speed control, thermostat control, alarm systems and other automatic control devices. This versatile device is also ideal for applications that require minimal size, such as the construction of HVAC systems.

The WLNJ55LDN snap-action switch is constructed with durable, corrosion-resistant materials that offer long-term operation and reliability. In addition, it features a non-inductive design with adjustable contact gap and snap-action operation, making it extremely suitable for high voltage and current applications.

Overall, the WLNJ55LDN is a small, reliable, and versatile snap-action switch that can be used in a wide range of applications. It provides precision and dependable operation in difficult locations, making it an ideal choice for the electrical industry.

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