LXA series snap-action switches are reinforced to protect against damage. Contacts are designed to make and break current rapidly. Even if the contacts are used for limit device and mechanical detecting instrument with slower actuating speed, a higher load capacity can be guaranteed for the switches. Additionally the switches are equipped with a compulsory breaking current device which ensures secure breaking capacity for the switches even in the case of adhesion occurring to contacts caused by overload or short circuit. Therefore the switches are particularly suitable for the equipment with higher safety requirement. Self-cleaning contacts are employed in LXA series snap-action switches. They protect the switches from dust, moisture and contaminants and make the switches highly reliable and sensitive. The switches are compact in structure and mounted in various ways, and suitable for automatic control, interlock and other low-voltage and current signal control as well. All surfaces of the conductive parts in LXA series snap-action switches are plated with pure silver so that the switches have secure current making and high carrying-current capacity.