Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971
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Reed Switches

Domestic Appliances and White Goods

Shock and vibration, and extremes of humidity and temperature are faced by most domestic goods. Reed Sensors come in packages which withstand all of the above. They also have the added advantage of directly switching 110V / 230VAC line voltage. The most widely used white goods applications are listed below. We have also suggested few of our products for use in each application, but this does not mean that the other products in the same product category will be unsuitable. Click here to  download this page as a PDF.

 

Proximity sensors in Top-loading washing machines

Proximity sensors in Top-loading washing machines

Proximity sensors or Reed Sensors are used near under the top loading door to stop the cycle instantly, if at all the loading door is inadvertently opened in-cycle. This helps stop the motor as well which could cause an accident. Continue reading

Reed switches and Reed sensors in Sewing machine pedals

Reed switches and Reed sensors in Sewing machine pedals

Pedals in sewing machines use a potentiometric or a similar arrangement as a wound coil with a moving carbon brush to control speed of the stitching motor. The disadvantage of such a system is that the carbon brush wears out and the stitching speed varies over time. A reed sensor… Continue reading

 

Reed switches in Washing machine vibration detection

Reed switches in Washing machine vibration detection

Reed Switches are used in bi-directional vibration sensors. A magnet and a very precise tension spring is inserted into a cylindrical housing and sealed on both ends. Two of these cylindrical assemblies are mounted on either side of a reed switch in such a way… Continue reading

Thermal sensors in Temperature control in deep freezers, coolers, heaters, and aquariums

Thermal sensors in Temperature control in deep freezers, coolers, heaters, and aquariums

In deep freezers, coolers and heaters, the temperature needs to be maintained within a precise window. Thermal reed sensors can be designed having windows as small as 2°C up to 10°C, and can switch up to 60W directly. The sensor can control the switching on… Continue reading

 

Reed switches in Over current protection in Food Processors and Mixers

Reed switches in Over current protection in Food Processors and Mixers

Mixers, food processors and grinders have an inbuilt over current protection which cuts off the power to the motor whenever the grinding blades or mechanical parts get obstructed. A reed switch can be used to build a current sensing relay which senses… Continue reading

Reed sensors in Motor direction changing in Electric Toothbrushes

Reed sensors in Motor direction changing in Electric Toothbrushes

Electric toothbrushes have to change the direction of the motor when switching from the top row of teeth to the bottom row. This can be done by mounting a reed sensor inside the electric toothbrush, with a magnet sliding in a groove on the outside… Continue reading

 

Reed switches and Thermal sensors in Instant Water heaters and Power showers

Reed switches and Thermal sensors in Instant Water heaters and Power showers

Bathrooms appliances such as heaters and power showers use reed switch based flow sensors. As soon as the shower is … Continue reading

Thermal sensors in Rice cooker heater control

Thermal sensors in Rice cooker heater control

After rice has cooked, rice cookers need to keep the rice warm at say, 70°C. This can be achieved by using a thermal reed switch designed to cut off at 75°C and cut in at 65°C. This opening and closing signal can be used to trigger a relay or a contactor… Continue reading

 

Magnet sensors in Dish washer spray arm jam detection

Magnet sensors in Dish washer spray arm jam detection

When dish washers are working, the high power water spray could dislocate some of the lighter dishes in the carrier and lodge them along the spray arms path. The next time the spray arm passes, it could jam the system. Reed Sensors can be… Continue reading

Magnet Sensors in Door position sensing for Appliances

Magnet Sensors in Door position sensing for Appliances

In washing machines and dish washers, the processor needs to know that the door is closed, so that the automatic cycle can be started and water can be pumped into the system. In refrigerators and deep freezers, a door left slightly … Continue reading

 

Reed sensors used for Level Sensing in Washing Machines and Dish Washers

Reed sensors used for Level Sensing in Washing Machines and Dish Washers

Washing machines and dishwashers have reservoirs to hold detergent, and fabric or water softeners. A window is usually given behind the door of the appliance to check the level. With time, this window gets stained, and it is difficult to view… Continue reading

Reed switches in Domestic Coffee Machines

Reed switches in Domestic Coffee Machines

Domestic coffee machines use an inlet water hose which is triggered by a solenoid to fill up the water reservoir whenever needed. As the water drains, the float comes down and activates a reed sensor, and this signal can be used to trigger the input water solenoid… Continue reading

 

Reed sensors and Magnet sensors in Commercial Coffee Machines

Reed sensors and Magnet sensors in Commercial Coffee Machines

Commercial coffee, tea, and milk vending machines need to dispense enough milk or water for exactly one cup. This can be accomplished by filling up a secondary reservoir fitted with a reed switch and a float which comes on when the reservoir is… Continue reading