Overhead wrenches for engines have been part of the THS portfolio for many years and serve a large part of engine operations. With the aim of serving this market even better, the THS engineering team re-evaluated the structure of the old models and developed a new model for these keys, which is even more modern, safe and robust.
The new overlay switches for THS motors have an even more complete structure: Steel structure on both the body and cover, Electrostatic Painting, connection diagram printed on the inside of the cover, lever screwed to the shaft and isolated switch contacts. These are details thought about in the day-to-day life of those who will handle this key.
Furthermore, the models of override keys for THS engines are compatible with models from the main manufacturers on the market, their structure has fixing points that allow the replacement of the main brands. Yes, you can replace the key you currently have in your equipment with an overlay key for THS engines , as it is compatible with the brands available on the market.
See what functions these keys perform:
On-Off: Known as a direct start switch, this switch has the function of turning on and off an engine or electrical equipment. It can be found in a three-phase or single-phase version.
On-Off-On: Its function is similar to the On-Off switch, however, its on position can be operated both clockwise and counterclockwise. It can be found in a three-phase or single-phase version. Note: This model cannot be used as a selector, as it only comes from an input and output set.
Reverse: Its function, in addition to turning it on and off, also acts to reverse the direction of rotation of the engine. It can be found in a three-phase or single-phase version.
Reverser with Return: Its function is similar to the reverser, but it always returns to position “0” when releasing the handle. It is generally used in winches and forklifts. It can be found in a three-phase or single-phase version.
Tranf. Mains/Generator: Also known as manual transfer switch. It allows you to transfer power from the dealership to a generator or even connect two engines alternately.
Dual Voltage: Used in equipment that can operate on two service voltages 220/380V. This switch allows you to choose, depending on the availability of power, at which voltage the equipment will operate. It is generally used in refrigerated trucks.
Star-Delta: The function of the star-delta switch is to provide a “smoother” start for three-phase motors. In the star option, it is necessary to hold the lever in position, as it returns to position “0” for safety.
Dual Polarity: Used to control two-speed motors, where speed change is necessary in operation. Generally used in Dahlander type engines.
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Access the overlay wrench catalog for THS engines here .