外壳NEMA 2,4,13•UL外壳2,4,13•CSA外壳2,4,13•EN 60529保护程度IP56目的无屏蔽功能和益处坚固耐用的铸造金属外壳具有足够的重量,使开关免于滑动当操作时,所有型号都具有氯丁橡胶盖垫片加上垫圈上的O形圈,并在所有维护的接触型号中单独的接地螺钉,通过简单地按下脚趾的光向移动来完成释放。将释放放置在完全屏蔽下,因此下降物体不能轻易释放出于刚性安装到地板或设备材料的3个孔,从铸铁构成的铸铁,覆盖的涂抹警报橙色单曲3/4“-14N.P.T. threaded conduit entry is standard Options Oversize "O" and "OX" Shield models accept oversized safety shoes and metatarsal foot guards. The "OX" Shield has an additional 3/4" (19.1 mm) opening height as compared to the "O" shield Dual 1/2"-14 N.P.T. threaded conduit entry and metric sizes available to the O.E.M. on special order Special Twin & Triple Models available to the O.E.M. on special order Potentiometer models are available RF Wireless models are available Hercules models available with cast aluminum base and covers (except unshielded cover which is gray iron)