This Square D 9007CP221 NEMA industrial snap limit switch with 2 normally open (NO), 2 normally closed (NC) contacts has a push rod plunger head operator and is for bushing mounting. It has a 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.