M12 Circular Connector M12 circular connector is designed for washdown and corrosive environments, primarily used in factory automation applications for actuators, sensors, industrial ethernet, and Fieldbus. M12 series provides with 3, 4, 5, 8,12,17 contacts, different pin match specific applications. E.g, sensor and power applications require 3 or 4 pins; Profinet and ethernet require 4.. Read More