Attention Hubbell-Wiegmann Enclosure Customers: Please note that any lead-time enclosures purchased Monday, Oct 15th or Tuesday, Oct 16th will require 2 extra lead-time days in addition to the published lead-time shown in our store. Backordered items will also require an extra 2 days. This is due to production stoppage during their inventory process. We apologize for any issues this may cause. Stock items will ship normally.
Manuals for Full Featured 3-Phase Soft Starters (SR55 Series, 17A - 477A)
Need help selecting a soft starter? Use our selector tool to configure and order.
Soft starters lower energy use and reduce wear and tear on motors and connected mechanical equipment. Fully digital, the Stellar SR55 series starters use thyristors for reduced voltage starting/stopping, have automatic configuration, built-in bypass relays, and a patented iERS system that reduces energy costs when used on lightly-loaded or oversized motors.