| Customization: | Available |
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| Protection: | IP65 |
| Max. Voltage: | 24-380V |
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Overview:
Speed switch combines the advanced technology of sensor and the actual application of domestic speed sensor
developed (also known as speed sensor, low speed switch, speed switch, slipping switch) This product is mainly used for
belt conveyor, elevator, screw conveyor, grinder, crusher, pump, centrifugal dry fire machine, mixer and dust collector and
other rotating equipment, the belt slipping, belt break, jamming, slow rotation, dynamic shaft shear and overload, drive
chain (belt) off and other mechanical failure can be dealt with in a timely manner, to protect the equipment to reduce losses.
Working principle:
The speed switch is equipped with internal delay circuit, which can adjust the internal delay according to the different
rotational speeds of the driven shaft to protect the equipment, through the detection piece installed on the driven shaft,
using the principle of electromagnetic induction to give the speed switch pulse signal (when the detection piece rotates to
a distance of 4-8mm from the speed switch for a pulse), the moment of power on the speed switch through the series of
relays to make the relay suction delay for the set number of seconds. If the speed switch is set at 8 sec, and the equipment
rotates for less than 8 sec, the speed switch will have no action through the relay connected in series (the relay will remain
in contact). When the equipment rotates for more than 8 sec, the speed switch will think that it has jammed and blocked,
and the relay connected in series will make the electric relay jump off (the relay will lose power) to protect the equipment
Product Parameters :
| Product Name | Speed Slip Switch | Model | WKSRD-II/SBK-II |
| Reset mode: | Manual and automatic reset | Environmental temperature | -20ºC--- +60ºC |
| Relative Humidity | less than 85% | No. of contacts | 1NO1NC |
| Action Angle | 30° | Action force | 10kg |
| Limit Angle | 60° | Current | 1.5A |
| Reliability | >106 times | Contact capacity | AC380V /DC220V |
Installation And Use:
All drives, such as screw conveyors, elevators, belt conveyors, zipper machines, crushers, etc. should be installed at their
driven shaft (end of the machine).
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