"These switches are designed for hinged guards and have a built-in actuator lever which operates the contact block with a positive mechanical linkage. N\/C safety contact positively disconnected after just 4.5° rotation. Head can be turned in any one of four 90° positions. Slow action contact system. The housing with snap-on cover fastened without screws to facilitate easy connectionSeries = TC 236Lock Style = HingeNormal State Configuration = NO\/NCMaximum Current = 4 AMaximum AC Voltage = 230VMaximum DC Voltage = 24VNumber of Cable Entries = 1Size of Cable Entries = M20 x 1.5Conduit Entry = M20Shaft Length = 70mm"