"These safety switches are designed for position monitoring on hinged guard doors. Due to the nature of how this particular hinged guard door switch functions the switch and guard door hinges are indepedant from each other via a universal joint K1 (Please see RS stock number 742-0732). These hinged guard door switches can be easily mounted to standard rail systems, allowing quick installation. They are also designed to operate with a positive break N\/C contacts on either left or right opening doors, increasing the application flexibility.Resistant metal enclosure. Good resistance to oil and petroleum spirit. Mounting independent of hinge. Dimensions: 92 mm x 81,5 mm x 27 mm. Variable mounting on hinged side. Rail-mounting possible with slot nuts. 2-channel, alternating monitoring. Actuator shaft can be turned 360°. For left or right hinged doors. Push-in system (toothed shaft). 2 cable entries M 16 x 1.5. 2 switches in one enclosureSeries = TVS 521Lock Style = HingeNormal State Configuration = 3NO\/NCMaximum Current = 1 A dc, 4 A acMaximum AC Voltage = 230VMaximum DC Voltage = 24VNumber of Cable Entries = 2Size of Cable Entries = M16 x 1.5Conduit Entry = M16Trigger Angle Range = 14°"