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Basic solid-state soft starters use thyristors for controlled reduced voltage motor starting/stopping and are designed to fit in place of existing wye-delta starters. Soft starters lower energy use and reduce wear on motors and mechanical equipment.
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Basic AC Motor Soft Starters
Category Selection
Basic AC motor soft starters provide for gradual motor starts (and stops, if equipped), reducing the mechanical shock associated with full on/full off motor control. They also offer additional motor protections and are capable of handling a variety of applications from standard duty, including agitators and lathes, to heavy duty, including crushers, shredders, and wood chippers.
For assistance with choosing the correct soft starter for your application, see our Soft Starter Selector.
For parts listings and specifications, go to Shop Now.
STELLAR® SR35 Series Basic 1 & 3-Phase Soft Starters
SR35 soft starters are fully digital and use thyristors on the A and C phases for controlled reduced voltage motor starting and stopping. SR35s have an Automatic Application Setup that fully configures the starter for a specific application with one entry.
- 17-361 A @ 110-240 VAC, 1PH or 200-600 VAC, 3PH
- 24VDC control voltage, 110-230 VAC with SR35-PSU power supply
- Internally bypassed during run
- Two-phase motor control
- Built-in SCR failure protection
- Full motor overload protection
- Full data logging (fault records, motor current, operational status, etc.)
- Configure and view parameters and view logs using StellarLink software
- Easily and separately adjustable motor start and stop times
- Can be used for motor reversing (with external contactors)
- Integrated Modbus RTU communication
- Optional remote keypad available
- Programmable digital inputs, and relay outputs for remote control
- IP20 panel mount, optional finger guards for frame sizes 1 and 2
- CE, cULus, REACH, RoHS
- Suitable for soft starting, split phase, cap run or cap start / cap run motors
Starting at
$497.00
(SR35-017)
WEG SSW07 Series Basic Soft Starters
SSW07 soft starters, with DSP (Digital Signal Processor) control, are designed to provide great performance on motor starts and stops with an excellent cost-benefit ratio. The SSW07 incorporates all electric motor protections and adapts to customer needs through its easy-to-install optional accessories.
- 10 to 350hp, 220- 575 VAC universal voltage, 3-phase
- Built-in run rated (AC1) bypass contactor
- Easy operation, setup, maintenance and installation
- Simple setpoint programming through trim pots
- Integral electronic motor protection
- Built-in electronic overload relay
- Avoids "water hammer" in pumps
- Limitation of voltage drop during start
- Switching power supply with EMC filter (110-240 VAC)
- Optional communication interface and motor PTC input
- SuperDrive G2 compatible
- Conformal coated circuit boards
- Standards and approvals: cULus, CE
Starting at
$706.00
(SSW070017T5SZ)
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