The 83139003 is an oil-resistant miniature microswitch from the 83139 series, featuring a double-break flexible leaf snap-action mechanism. It is rated for a nominal current of 6 A at 250 VAC and offers a high mechanical life of 10 million operations. This switch is sealed to IP66/IP67 standards, utilizing a black nitrile rubber membrane for resistance to oil and hydrocarbons, and operates in temperatures from 0°C to +85°C. The device is configured for 4-hole (Type A) fixing and has a maximum operating force of 3 N. Its robust, sealed, and oil-resistant design makes it suitable for demanding industrial environments where exposure to fluids is a concern.