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Reliability with Siemens 3RW55 Soft Starter Failsafe

ByGriffin Buckley


Reliability with Siemens 3RW55 Soft Starter Failsafe

May 18, 2019

With the 3RW55 Failsafe Soft Starter, you’ll have reliable and consistent control over starting and stopping your machine operations. Its integrated fail-safe digital input allows emergency stop buttons to be directly connected into the soft starter. This high performing device has the torque control for drives with an output between 5.5kW and 560kW.

Features and Benefits:

  • Extremely easy commissioning and reliability even under changing load conditions
  • Minimum power loss and optimum/symmetrical motor control
  • Efficient configuration and maximum flexibility in automation engineering
  • Maximum flexibility with regard to user interface and intuitive menu guidance
  • Reduced mechanical loading and optimum pump stop control
  • Suitable for the starting of explosion-proof motors
  • Reduced costs and space requirements thanks to direct wiring of the Emergency Stop mushroom pushbutton to the soft starter for SIL 1

Standard Electric Supply Co. is a family-owned distributor, built on delivering above standard service. For over 100 years, Standard Electric has been the best at what they do; delivering top-quality products, outstanding service, and providing value-added services to customers across the Midwest. Visit to see how Standard Electric can become the solution to your needs.

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