Pole-Changing Reversing Switches

A pole-changing switch is a cam switch that transfers a load between two supplies or a supply between two loads, while a reversing switch changes a motor's direction of rotation between right and left. They are used in small installations with manual changeover between the mains and a generator, and in motor applications that run forward and reverse, such as cranes, conveyors and roller shutters. The category includes Metop and Opaş brand 1-, 2- and 3-phase types as well as 4-, 5- and 6-pole switches, currents such as 16 A, 32 A, 40 A, 63 A and 80 A, 1-0-2 and without-0 arrangements, enclosed models and Opaş types with 66x66 and 90x90 mm frames. Choose the number of poles according to the number of conductors to be transferred, the current according to the load's rated current, and the 1-0-2 or without-0 arrangement according to whether a closed position is needed during the changeover. A three-phase reversing switch reverses the direction of rotation by swapping two of the phases going to the motor. A manually operated pole-changing switch is not a substitute for an automatic transfer switch; the operator performs the changeover, and separate Dahlander switches are used for changing the speed of Dahlander motors.

Products

How to choose Pole-Changing Reversing Switches

A pole-changing switch is a cam switch that transfers a load between two supplies or a supply between two loads, while a reversing switch changes a motor's direction of rotation between right and left. They are used in small installations with manual changeover between the mains and a generator, and in motor applications that run forward and reverse, such as cranes, conveyors and roller shutters.

  • Separate overcurrent/leakage protection, motor starting and local isolation requirements.
  • Select rated current, pole count and breaking capacity (kA) from the installation calculation.
  • Match coil voltage, auxiliary contacts and tripping curve to the control circuit and load type.

Frequently asked questions

What is Pole-Changing Reversing Switches and where is it used?

A pole-changing switch is a cam switch that transfers a load between two supplies or a supply between two loads, while a reversing switch changes a motor's direction of rotation between right and left. They are used in small installations with manual changeover between the mains and a generator, and in motor applications that run forward and reverse, such as cranes, conveyors and roller shutters.

What should I compare when choosing Pole-Changing Reversing Switches?

Choose the number of poles according to the number of conductors to be transferred, the current according to the load's rated current, and the 1-0-2 or without-0 arrangement according to whether a closed position is needed during the changeover.

Where can I find technical details for Pole-Changing Reversing Switches products?

A manually operated pole-changing switch is not a substitute for an automatic transfer switch; the operator performs the changeover, and separate Dahlander switches are used for changi

Pole-Changing and Reversing Cam Switches Selection Guide