AutomationDirect's Stellar SR22 series soft starters are a low-cost motor control alternative
AutomationDirect introduces Stellar soft starters, a low-cost motor control alternative.
The SR22 series soft starters, available in 5A to 40A sizes, are overcurrent protected and feature two DIN-rail mountable frame sizes (45 millimeters and 55 millimeters). The microprocessor-based starters have an operating voltage range of 208 to 460 VAC. Each unit is equipped with three potentiometers, allowing adjustable start and stop times of up to 30 seconds, and an adjustable start pedestal voltage ranging from 30 to 100%. A separate 24VDC control voltage is required.
The SR22 series soft starters use thyristors for controlled, reduced-voltage motor starting and stopping, and then switch to internal contacts for efficient running at rated speeds. When used instead of a line starter, Stellar soft starters provide smoother control, resulting in less torque, less shock, and less electrical and mechanical stress.