Button Color : Green Sign switch; contact Type : 1NO ; action Type : Momentary ;Ith : 10A; ui : 600V; screw terminal quantity : 2 Button Color : Red Sign switch; contact Type : 1NC ; action Type : Momentary ;Ith : 10A; ui : 660V; screw terminal quantity : 2 Mount Hole Diameter: 22mm / 0. 87"(7/8"); Fit Panel Thickness(Adjustable): Max 5mm / 0. 2" ;Size: 39 x 29 x 52mm/ 1. 5" x 1. 1" x 2"(L*W*H); Material: Plastic, Metal; Net Weight : 60g;Package Content : 1 x Red Button Switch + 1 x Green Button Switch Widely used in controlling the electromagnetic starter, contactor, relay and other automatic control electric circuits. Comes with quick connect terminals to allow for fast connections. This Momentary Push Button switch Warranty 1 years . If there are quality problems within 1 years, you can send us email. We will send you new ones .