44505-1222

Snap Action, Limit Switches

44505-1222 is an example of a snap action, limit switch. Snap action switches are electronic electromechanical devices that open or close an electrical circuit when physically activated or operated. Limit switches are designed to control the motion of a machine part and in turn switch on or off the power supply to the controlled machine part. In addition to their switching capability, they also provide protection against electrical overload and short-circuits.

The 44505-1222 is a normally-closed snap action, limit switch with an actuation rating of 1A at 10Vdc. It is suitable for dc control, such as for motor and light control applications. It is a multi-pole single-throw switch, with a hermetically sealed metal housing to provide protection against dust and moisture ingress, making it suitable for harsh working environments.

The working principle behind the 44505-1222 snap action, limit switch is that when the actuator is activated, the plunger makes contact with the contact block inside the housing, which completes the circuit and supplies power to the controlled machine part. When the actuator is released and the plunger returns to its original position, the contact is broken and the circuit is opened. This interrupts the supply of power and thus prevents accidental or unnecessary activation of the machine part.

The 44505-1222 has a 0.4mm differential travel, when the preset plunger actuates it will provide a secure contact and break the contact at the same instant. It is RoHS compliant and comes with a variety of mounting and termination options to suit any application. It has a switching capacity of 1A at 125Vac and 0.4A at 30Vdc and an operating temperature range of -25 to +85C.

The 44505-1222 snap action, limit switch is suitable for a range of control applications, from basic motor and light switching, to complex machine automation processes. It is reliable, long-lasting and easy to install, making it an ideal choice for a wide range of applications.