Interlock Switches Tongue Switches Elf Specifications Standards EN954-1, ISO13849-1, IEC/EN60204-1, NFPA79, EN1088, ISO14119, IEC/ EN60947-5-1, ANSI B11.19, AS4024.1 Category Cat. 1 Device per EN954-1 Dual channel interlocks suitable for Cat. 3 or 4 systems Approvals CE marked for all applicable directives, cULus and BG Safety Contacts 1 N.C. or 2 N.C. direct opening action Designation/Utilization Cat. A600/AC-15 (Ue) 600V 500V 240V 120V (Ie) 1.2A 1.4A 3A 6A N600/DC-13 (Ue) 600V 500V 250V 125V (Ie) 0.4A 0.55A 1.1A 2.2A Thermal Current (lth) 10A Description Minimum Current 5V 5mA DC The Elf is a tongue (or key) operated safety interlock switch designed to fit at the leading edge of sliding, hinged or liftoff guards. Safety Contact Gap >2mm (0.078in) The Elf s unique miniature housing (only 75 25 29mm) makes it Rtd. Impulse withstand Volt. (Uimp) 2500V the smallest interlock currently available. It is designed for smaller Auxiliary Contacts 1 N.O. machines such as printers, copiers or domestic machinery which, until now, have been unable to use safety interlocks due to space Pollution Degree 3 restrictions.With its dual entry slots and rotatable head, the versatile Actuator Travel for Positive 3.6mm (0.141in) Elf can offer up to eight different actuator entry options. Opening Min Operating Radius 150mm (5.90in) Operation of the switch is achieved through the insertion of a 60mm (2.36in) with GD2 kit specially profiled stainless steel key that is permanently mounted to Break Contact Min Force 6N (1.35lb) the guard door. The semi-flexible key allows the Elf to be used on Max Actuation Speed 160mm (6.29in) per sec small radii doors (60mm or 2.36in). Max Actuation Frequency 2 Cycle per sec The Elf is available with 2 N.C. or 1 N.O. and 1 N.C. safety contact Case Material UL approved glass filled polyester and conduit entry (1 M16 or connector style) sealed to IP67 Actuator Material Stainless Steel (watertight and dustproof). A blanking plug is supplied for the unused key entry. Protection IP67 Conduit Entry 1 x M16 or quick-disconnect style Features Operating Temperature -20C to +80C (-4F to +176F) Ideal for small, light weight guards Fixing 2 x M4 The smallest interlock switch available Mounting Any position Contacts, 2 N.C. or 1 N.O. & 1 N.C. Mechanical Life 1,000,000 operations Eight possible actuator entry points, easy to install Environmental protection: IP67 Electrical Life 1,000,000 operations Weight 60g (2.11oz) Colour Red Conductive pollution occurs, or dry, non conductive pollution occurs which becomes conductive due to condensation. Applications Note: Lift-off guards require good alignment when using tongue actuated interlock switches. IMPORTANT: It must not be possible to lift the guard without actuating the interlock. An interlock on either side may be required. 3-2Interlock Switches Tongue Switches Elf Product Selection Catalogue Number Safety Auxiliary M16 Conduit/ Quick Contacts Contacts BBM/MBB Actuator M16 Conduit 1/2in Adaptor Disconnect Flat 440K-E33036 440K-E33029 440K-E33074 90 440K-E33040 440K-E33030 440K-E33025 1 N.C. 1 N.O. BBM GD2 Metal Align. Guide w/Semi-Flex Actuator 440K-E33031 440K-E33075 440K-E33014 440K-E33076 Flat 440K-E33080 440K-E33037 440K-E33077 90 440K-E33041 440K-E33045 440K-E33024 2 N.C. GD2 Metal Align. Guide w/Semi-Flex Actuator 440K-E33046 440K-E33078 440K-E33047 440K-E33079 Recommended mating cable, 2m (6.5ft). See page 15-10 for details and additional lengths. 889D-F4AC-2 Accessories Description For Dimensions See Page Catalogue Number Flat Actuator 14-6 440K-A21014 90 Actuator 14-6 440K-A21006 GD2 Metal Alignment Guide with 14-6 440K-A21030 Semi-Flexible Actuator Alignment Guide 14-6 440K-A21069 Mounting Plate 14-6 440K-A33624 3-3