D2F-01FL2-A

Snap Action, Limit Switches: D2F-01FL2-A Application Field and Working Principle

Snap-action or limit switches are mechanical devices designed to function as consumable parts in automatic control systems. They are designed to temporarily change their operating state when pressure, force, or temperature crosses a predetermined threshold. This process is known as a snap-action. They are generally used to control assembly lines, robotic devices, motor and computer-controlled mechanisms, and factory automation.

The D2F-01FL2-A is a two-position, two-state, single-pole, snap-action limit switch. This switch is typically used in applications where a two-position, two-state logic is necessary. This switch is also capable of withstanding up to 1000 Vac/3000 Vdc.

Application Fields

The D2F-01FL2-A limit switch is typically used in applications such as boilers and burners, medical/hospital equipment, vending/gaming machines, optical equipment, machines and equipment where low-current control is necessary.

Working Principle

Snap-action limit switches are normally open when the actuator is in the “away” position. When the actuator is pushed or moved to the “on” position, they will change their state to normally closed. This change will be made without any delay or lag time. When the actuator is moved back to the “away” position, it will again cause the switch to change its state from normally closed to normally open. This action is known as a snap-action.

The D2F-01FL2-A switch has a single pole, two-position, two-state, snap-action limit switch. This switch has a snap-action mechanism and is designed for a 1N or 2N (1/4 inch x 2 inch) actuator push button, key lock, or paddle switch that must rotate from 30 to 180 degrees. The actuator must move 1.0" in order to change the switch state. The switch is rated at 5a, 250VAC, and 0.5A, 125 VDC.

The switch has two electrical contacts on an independent base. The contacts are rated to 3A, 250VAC and 0.5A, 125VDC. The contacts are normally open when the actuator is in the “away” position and are normally closed when the actuator is in the “on” position. The switch also has a momentary override feature that allows the contacts to be momentarily closed when the actuator is released.

Conclusion

The D2F-01FL2-A snap-action limit switch provides a two-position, two-state logic and is typically used in applications such as boilers and burners, medical/hospital equipment, vending/gaming machines, optical equipment, and machines and equipment where low-current control is necessary. The switch is rated at 5A, 250VAC, and 0.5A, 125VDC and has two electrical contacts on an independent base. The actuator must move 1.0" in order to change the switch state.