AutomationDirect's line of Stellar soft starters now includes the
SR44 series of solid-state soft starters to control three-phase ac induction
motors. The fully digital SR44 soft starters use thyristors in all three motor
phases to provide controlled reduced voltage motor control for smooth
acceleration/deceleration and reduced mechanical shock and starting stress.
The SR44 series features 115 or 230V ac selectable
control voltage, as well as easily and separately adjustable motor start and
stop times. The Automatic Application Setup feature fully configures the
starter for specific applications with one entry. The energy-saving Optimizing
Mode improves motor efficiency and power while delivering the demanded torque
at low rpm.
These fully programmable units are equipped with
six-button keypads with two-line, 32-character displays; programmable I/O for
remote control applications include a single digital input and two relay
outputs. An optional Modbus communication card and remote keypad are also
available.
Suitable for a variety of motor loads, Stellar SR44 soft starters can be used for
motor reversing, with external contactors, and can be connected "in-delta",
allowing for use of a smaller soft starter.
Stellar SR44 soft starters are UL listed, CE, REACH,
and RoHS approved. Size 1 starters, with 9A to 146A current ratings, start at
$769; Size 2 starters, with 174A to 370A current ratings, start at $2,030.
