D4A-3E02N

Snap Action, Limit Switches

D4A-3E02N is a kind of snap action, limit switches which is manufactured by OMRON. It plays an important role in switch technology, and is widely used in many industries like building automation system, security system and even factory control system. Thanks to its multiple features, such as long life mechanical switch, high load capacity and the fact that it is both water-proof and dust-proof, D4A-3E02N has become one of the most popular switch for many industries.

Application Field

D4A-3E02N switch is mainly used in industrial environments where it can protect the users from electric shock. It is especially common in industrial fan and conveyor applications, since the operating mechanism requires rapid closing and opening of the switch, which D4A-3E02N can provide. D4A-3E02N is also used for position control in elevators and for resetting purposes in power supplies and medical equipment.

Working Principle

The working principle of D4A-3E02N switch is simple and straightforward. When triggered, the snap action of the device causes the internal contacts to quickly activate or deactivate an electrical circuit. The switching contacts are arranged in the form of a transfer contact which, when operated by a control unit, will cause the electrical circuit to be activated or deactivated, depending on the setting of the switch.

When the switch is triggered, the actuation force is provided by springs and levers which activate the internal switch contacts. Depending on the model, the switch can be triggered from all sides by a snap action, light force or mechanical plunger. Depending on the setting, this will cause a signal to be sent to the control unit, informing it that the position of the switch has changed. From here, the control unit will then send a signal to the relevant connected actuators, which will then open or close the circuit.

Conclusion

D4A-3E02N is a reliable and robust switch, capable of handling high load capabilities while being water-proof and dust-proof. These switches are typically used to control the operation of industrial fans, conveyors, and elevators, and to detect the resetting of power supplies and medical equipment. It is also a great choice for controlling electric supplies to prevent shock hazards and reducing the risk of damage to machines. By understanding the working principle, we can see why D4A-3E02N is so widely used in a variety of industries and applications.