This Limit Switch is 40 mm wide and made of zinc alloy material (Zamak). It does not come with an actuator. The switch has 1 normally open (NO) and 1 normally closed (NC) snap action contacts of the Zb type. It features 4 mounting holes at the top and bottom for easy installation. The switch also has a cable entry on the bottom, which is ISO M20 x 1.5 compatible.