Solid-state soft starters control three-phase ac induction motors

AutomationDirect’s Stellar soft starters include the SR44 series of solid-state starters, feature adjustable motor start, stop times.

02/03/2011


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.ADC Stellar Soft Starter

The SR44 series features 115 or 230 V 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 advanced 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.

www.automationdirect.com

AutomationDirect

- Edited by Gust Gianos, CFE Media, Control Engineering, www.controleng.com



No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Salary and career survey: Benchmarks and advice; Designing controls; Remote data collection, historians; Control valve advances; Hannover Messe; Control Engineering International
System integration: Best practices and technologies to help; Virtualization virtues; Cyber security advice; Motor system efficiency, savings; Product exclusives; Road to Hannover
Collaborative robotics: How to improve safety, return on investment; Industrial Internet of Things, Industrie 4.0: World views; High-performance HMI, Information Integration: OPC and OMG
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
PLCs, robots, and the quest for a single controller; how OEE is key to automation solutions.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
click me