The PEM2G51Z Limit Switch with NO+NC, 5A, max.250VAC/VDC, lead 1m, IP67 manufactured by POKOJ is an electronic part that helps control the flow of electricity in electrical wiring and devices. It is designed to limit the amount of current that can pass through it in order to prevent overheating and damage. It features two normally open (NO) and two normally closed (NC) contacts with a current rating of up to 5 amps, max 250VAC/VDC, and 1m lead. It is also IP67 rated, meaning it is dust and water tight, making it a great option for outdoor applications.