D4JL-4QFA-D7-01

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Snap action, limit switches are electromechanical devices. They are typically used to monitor a variety of different material conditions, such as the opening and closing of a door, the actuation of a lever, the activation of a gas valve, and many other uses. The D4JL-4QFA-D7-01 is a snap action, limit switch designed to meet a variety of conditions.

The switch body is made of thermoplastic material and features a single-pole double-throw contact system. The contact system is designed to make and break the electrical connection when the force of the lever is exerted upon it. This is accomplished through the use of a mechanical spring mechanism that is triggered by a cam-action when the lever is pushed or pulled. The spring mechanism then provides an index for the electrical circuit to be opened or closed.

The D4JL-4QFA-D7-01 is designed for use in applications where a reliable and cost-effective limit switch is required. The mechanical components are designed to provide a long lifespan without needing frequent maintenance. It also features an adjustable contact gap which allows for a wide range of switching preferences. This makes the D4JL-4QFA-D7-01 suitable for a variety of applications, including machine tools, vending machines, electronic equipment, and safety applications.

The switch has two main functions: one to actuate a mechanical device, such as a door or lever, and one to monitor the position of this device. To actuate a device, the switch must be actuated by a manually operated lever or a mechanical force. When actuated, the cam-action trigger will cause the mechanical spring to compress and the contact gap to be opened or closed. This is the ‘actuation’ and also the ‘make’ of the switch. Once the switch has been actuated and the contact gap is open, the switch will remain open until another force is exerted upon it to close the contact gap, which is the ‘break’ or ‘disengage’ of the switch.

When the switch is in the ‘monitor’ position, the mechanical device is monitored so that it does not slide further than the preset position. The D4JL-4QFA-D7-01 switches are designed for monitoring door or lever positions and will send an electrical signal when the switch is either engaged or disengaged. This is accomplished through the contact gap which, when opened or closed, allows a current to flow. This is known as a ‘dry contact’ switch and is used in automated machines and other industrial automation applications.

These switches are also used in safety applications such as controlling access to hazardous areas. If the switch is in the ‘monitor’ position and the door is opened, the switch will send a signal to let the operator know that the door has been opened. In addition, they can be used to measure the position of a sensing arm by signaling when the arms reach a preset position.

The D4JL-4QFA-D7-01 is a reliable, cost-effective limit switch that provides a long-term, reliable solution for a range of applications from machine tools to industrial automation. Its adjustable contact gap ensures maximum flexibility and the spring mechanism ensures that it remains reliable in harsh environments.

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