Siemens Drive Head

Actuator type: Roller plunger
For use with: Limit switch 3SE5

The limit switch actuators 3SE5 are a series of switch heads designed for use with the SIRIUS limit switch series 3SE5. Due to their plug connection and standardized interface, these switch heads can be easily replaced. They are compatible with both modular switching units and complete switch units. Rounded plungers and roller plungers allow operation in the direction of the plunger axis or with the rod at a right angle to the plunger axis. Rounded plungers and roller plungers have an additional follow-up path, resulting in a larger operating distance. For lateral actuation and a relatively long follow-up path, the roller plunger is recommended.

Roller levers and angled roller levers enable different approach angles (α = 30°) and follow-up angles (γ = 45°) depending on the output direction (left or right). Actuation elements made of finely ground steel in the form of cams, straight edges, or cam discs are also available. Rotary levers and rod actuators offer a high starting speed (v = 1.5 m/s) and a variety of starting options. They are resistant to oil, grinding dust, ice, and coarse-grained materials.

With the rotary lever, the maximum approach angle is always equal to the maximum follow-up angle. Plunger actuators are available when no actuator with approach and follow-up angles is possible. A 10° adjustment of the rotary lever is possible. Spring rods can be used for undefined actuations and changing starting conditions, allowing the start to occur from any direction. Roller plungers for central mounting with a thread of M18 x 1 enable quick assembly and easy adjustment. Fork levers can be switched in two directions and provide a latching actuator for alternating movements.