Ferrogard 1, 2, 20 & 21 Non Contact Safety Switch The Ferrogard FRS 1, 2, 20 and 21 are magnetically actuated non-contact safety switches which offer reliability and a high tolerance to misalignment. Designed to be installed on a guard door, the action of the magnetic actuator being removed from the switch opens the N.C. safety contacts therefore isolating the control power to the machines primary control element. Made from moulded ABS with a rectangular housing and sealed to IP67 (NEMA 6P), these non-contact switches are ideal for wet environments. Non-contact actuation High tolerance to misalignment Plastic rectangular housing Cable or quick-disconnect (QD) connections M4 mountable in any position Operating distance for safety contacts - make;12mm, break;23mm Operating temperature range: -10°C to +65°C Sealed to IP67 Cat. 1 device per EN 954-1 dual channel interlocks suitable for Cat. 3 or 4 systems Approvals CE Marked for all applicable directives and cULus. Standards EN954-1, ISO13849-1, IEC/EN60204-1, NFPA79, EN1088, ISO14119, ANSI B11.19, AS4024.1.