Safe, narrow, and cost-effective s r e t r a t s d e e p S Safe shutdown With the integrated Safe Torque Off (STO) function, the CONTACTRON Speed Starter is unique in its device class. This means that you benefit from two-channel, safe shutdown without complex procedures and without additional contactors. SIL 3 and PLe certifications provide for your safety. Saving space in the control cabinet Featuring a compact design with an overall width starting at just 35 mm, the CONTACTRON Speed Starter is currently the narrowest device in its class available on the market. Higher density in the control cabinet will save you additional costs. Cost-effective solution The new speed starter has all the basic functions of CONTACTRON motor starters that you need: start, reverse rotation, overload protection, and safe shutdown of three-phase asynchronous motors. You can realize different speeds as well as the soft start and stop of the motor at full torque. You get the exact functionality you need. Application example Speed profile: 1. To avoid high startup currents, such as in the case of large fans, a soft start can be used for the motor. 2. A conveyor belt is carefully decelerated by the ramp function (to avoid a collision). 3. Normal speed for a fast transport phase and creeping speed for a slow positioning phase. 4. Efficient operation of motors in accordance with the EUP Lot directive (energy efficiency directive). The CONTACTRON Speed Starter provides simple operation with various speeds, from normal speed and creeping speed all the way to energy efficiency and ramp functions. 1 2 3 4 Phoenix Contact 21