Reversing contactor switches module (WSS)

Reversing contactor switches are used to change the direction of rotation of AC motors in conveyor systems. The didactics module on reversing contactor switches makes the theoretical function easy to understand in practical terms.

Find out in a practical way how direction reversal works with AC motors

Teaching aid for practicing with reversing contactor switches
Practical didactics module: reversing contactor switches (WSS)
Practical didactics module: reversing contactor switches (WSS)

In many conveyor systems, safe reversal of the direction of movement is required. This is done by reversing the direction of rotation of the AC asynchronous motors used in the drive technology.

In order for prospective electronics specialists (MT, EBT, EMA, EAT, EAFT, EGS) to know exactly how to accomplish this change in direction of rotation in a real-life situation without any problems, they need to master the operating principles and use of reversing contactor switches – and not just in theory. By practicing using industry-proven components, trainees can gain essential practical experience for their future responsibilities as drive specialists.

To this end, we have developed the reversing contactor switches didactics module, based on subject area 8 "Selecting and integrating drives." Theoretical knowledge becomes easily comprehensible.

The reversing contactor switches teaching aid enables trainees to switch an AC asynchronous motor on and off simply and safely, as well as change the direction of rotation in line operation.

We will be happy to advise you on your needs

  • With our extensive experience in education and training
  • On-site with our didactics specialists
  • With the optimum teaching aid and modules

Your benefits

  • Realistic practice

    Using industry-standard electrical components from the range of products manufactured by a leading drive specialist
  • Understand automation

    With a tailor-made teaching aid that enables electronics specialists to safely operate sophisticated automated systems
  • Learn safely

    Thanks to safe installation of all live components

Components and technical data

  • Power contactors:
    • 3 power contacts in AC3 design
    • Rated current 16 A
    • 2 auxiliary contacts: 1 NC contact/1 NO contact
  • Control elements:
    • One red and two green operating panels
    • 24 VDC indicator lamps (only with green pushbuttons)
    • 2 contacts: 1 NC contact/1 NO contact
  • 24 VDC – voltage source

Practical laboratory tutorials

  • Starting AC asynchronous motors on the grid
  • Changing the direction of rotation in line operation
  • Switching 1-phase and 3-phase electrical consumers
  • Measurement of electrical quantities (voltage and current)

Areas of application

The didactics module is suitable for use in technical high schools or for the industrial and technical training of

  • Electronics specialists (MT, EBT, EMA, EAT, EGS)
  • Mechanical engineers
  • Automation technicians

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