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Miniature switch 333-300

miniature switch
miniature switch
miniature switch
miniature switch
miniature switch
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Number of poles
Other characteristics
miniature, micro, actuator
Primary current

4 A


28 V

Operating temperature

Max.: 121 °C (250 °F)

Min.: -54 °C (-65 °F)


The precision snaps action for on/off applications is a synonym of Microswitch. Today, we are proudly introducing our own branded RS PRO Miniature Micro Switch where current mechanical energy applied to an actuator provides a high-precision electrical output. The actuator type comes as a basic switch with unfitted actuator kit and fining hardware, offering you an impressive temperature operating range allowing you full application flexibility. Where the space is prime, our ultra SPDT Microswitch is here to eliminate the issue As a standard, our contact material is silver-plated High-precision, presence/absence detection terminal Ultra Subminiature and lightweigh Long operating life High temperature designs for up to +400°F (204°C) for up to 100 hours Microswitch fits perfectly with: Appliances Computer/business equipment Communication equipment HVAC (Heating, Ventilation, and Air Conditioning) Manually operated devices Medical, Dental equipment Office equipment Test instruments and timing devices Valves and vending machines Door interlocks Microwave ovens Elevators What are microswitches? Microswitches are mechanically operated electrical switches designed with an actuator and terminals called common, normally open and normally closed. A microswitch is also known as a snap action switch; they operate by using a spring-loaded lever to open and close a set of internal contacts inside the unit. How does a microswitch work? Power is typically attached to the common terminal; this leads into the Switch and energises the spring and because the spring is touching the normally close pin it sends power out here, this is called a resting state.


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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.