WLG2-55LDS

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Snap action, limit switches are designed to detect the presence or absence of an object within a mechanical system, or to indicate a specific position of that object. The WLG2-55LDS is a limit switch designed to fit nearly any application. Knowing the application field, working principle and installation instructions for this type of switch is essential for any mechanical engineer looking to incorporate one into a system.

Application Field

The WLG2-55LDS limit switch is a snap action switch capable of handling voltages up to 250 VAC and currents up to 4 A. It has a contact form of 1NO-1NC/NO-NC and has a minimum actuator force of 150 gf. The WLG2-55LDS can be used in a variety of ways including:

• Control of signal lamps and sensing of door and cover position
• Switch used in equipment doors, panels, etc.
• Motor control
• Recording of machine operations, such as sawing, punching, etc.
• Safe sensing and more

Working Principle

A limit switch works just like a regular mechanical switch, but instead of being activated by human contact, it is activated by an object. The WLG2-55LDS is a snap action switch, which means that when the actuator is pushed enough, the internal contacts are moved and the electrical contact is made. The switch then remains in its new position until the contact is broken or reset manually.

The WLG2-55LDS features a positive opening action, where the contacts open on operation, and can be constructed with a variety of different materials. The operating temperature range is between -20°C and +105°C and the switch is rated to IEC/EN 60947-5-1.

Installation and Wiring

When installing the WLG2-55LDS, it is important to make sure that ground wires are connected adequately, and that all wiring is done in accordance with local safety codes. When wiring this switch, the live wire should always be wired to the non-switched terminal (NC- Black) and the switched terminal should be wired to the live wire (NO – Red).

In order to install the switch correctly, the actuator must be correctly aligned with the switch body. The switch should be mounted firmly so that the actuator is free to operate and not hindered by any external forces. The actuator should be aligned so that the switch contacts open and close when the actuator is moved.

Conclusion

The WLG2-55LDS is an ideal choice for a wide range of applications, from industrial motor controls to door sensing. Being easy to install and operate, the WLG2-55LDS offers a reliable and cost-effective solution for those who need a reliable switch for their system. By understanding the application field, working principle and installation instructions, mechanical engineers can make the most of this snap action limit switch.

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