This Square D 9007CO3 NEMA snap limit switch has two normally open (NO) and two normally closed (NC) contacts and can be panel mounted. It has quick make-and-break action for use in timers, push buttons, and other control products. This limit switch is Underwriters Laboratories (UL) listed, Canadian Standards Association (CSA) certified, and European Conformity (CE) marked. Square D limit switches are manufactured by Schneider Electric. Square D brand pressure, float, and limit switches have been synonymous with safety, quality, and reliable performance for over 100 years. First launched by Detroit Fuse and Manufacturing in 1902, the Square D brand and its products continue to earn customer trust today.