AutomationDirect: Full-Featured Soft Starters

Stellar soft starters now includes the SR55 series of solid-state soft starters to control three-phase AC induction motors.

Aw 82804 1506np Automationdirect

Designed to withstand up to 477 FLA (at 200-480 VAC), the starters are available in three frame sizes, are fully digital, provide full motor overload protection, and use thyristors in all three motor phases for controlled, reduced voltage motor starting and stopping. They are used in general purpose soft start motor control applications where traditional across-the-line starting or wye-delta starting would typically be appropriate and are ideal in applications requiring lower inrush currents. The units also have a built-in internal bypass and patented iERS (intelligent Energy Recovery System) that reduces energy costs when used on lightly loaded and oversized motors. Features include 24 VDC, 110 or 230 VAC selectable control voltage, as well as easily and separately adjustable motor start and stop times. The fully programmable units are equipped with a touchscreen with an easy-to-navigate menu structure, a quick automatic application setup feature, built-in SCR failure protection, and full data logging (fault records, motor current, operational status, etc). They offer integrated Modbus RTU, or optional Modbus TCP or Ethernet/IP communication, as well as programmable analog I/O, digital inputs and relay outputs for remote control.

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