Full-Featured AC Motor Soft Starters

SR55 soft starters, used to control 3-phase AC induction motors, are fully digital and packed with features. They provide smooth acceleration for reduced mechanical shock and starting stress, full motor overload protection, easy setup with embedded touchscreen or quick automatic application setup, and integrated Modbus RTU communications.

• 3 frame sizes available, with ratings from 17-477A @ 200-480VAC
• 24VDC, 110VAC, or 230VAC selectable control voltage
• Internally bypassed during run
• Full three-phase motor control
• Easily and separately adjustable motor start and stop times
• Built-in SCR failure protection
• Full data logging (fault records, motor current, operational status, etc.)
• Optional Modbus TCP or EtherNet/IP communications
• Configure and view parameters as well as view logs using StellarLink software
• iERS (intelligent Energy Recovery System) saves energy on lightly-loaded motors
• Can be connected 'in-the-delta', allowing use of a smaller soft starter (no iERS optimizing with in-delta connections)
• Can be used for motor reversing (with external contactors)
• Can be used with local or remote control
• Programmable analog I/O, digital inputs, and relay outputs for remote control
• IP20, panel mount with optional finger guards for frame sizes 1 and 2 soft starters
• CE, ETL (CSA C22.2 No.14 and UL 508), REACH, RoHS