Position Interlock Switches Safety Limit Switches Imp Specifications Standards Category Approvals Imp 1 Imp 2 NRTL/C Description The Imp offers safety switch performance of bigger units in the most compact case available. Designed with two mounting hole options and a choice of actuator positions, the Imp will fit in the most confined spaces. Guardmaster limit switches can be used in other applications other than guard doors, for example on moving machine beds, crane arms, etc. Operation of these limit switches is achieved by the sliding action of the guard or other moving object deflecting the plunger or lever. It is important that upon actuation, the guard or other moving objects should not pass completely over the switch and allow the plunger or lever to return to its original position. Features • Positive operation, forced disconnection of contacts • Contacts, 1 N.C. & 1 N.O. 7-18 Safety Contacts Utilization Category AC (Ue) (le) DC Max. Switched Current/ Voltage/Load Thermal Current (lth) Minimum Current Safety Contact Gap Rtd. Insulation Voltage Rtd. Impulse Withstand Voltage Auxiliary Contacts Pollution Degree Actuator Travel for Positive Opening Break Contact Min. Force Maximum Actuator Travel Maximum Actuation Speed Max. Actuation Frequency Case Material Actuator Material Protection Conduit Entry Operating Temperature Mounting Mechanical Life Electrical Life Colour EN954-1, ISO13849-1, IEC/EN60204-1, NFPA79, EN1088, ISO14119, IEC/ EN60947-5-1, ANSI B11.19, AS4024.1 Cat. 1 Device per EN954-1 Dual channel interlocks suitable for Cat. 3 or 4 systems CE marked for all applicable directives and CSA NRTL/C 1 N.C. positive break AC 15 500V 250V 100V 1A 2A 5A 250V 0.5A, 24V 2A 500V/500VA 10A 5V 5mA DC >2 x 2mm (0.079in) (Ui) 500V (Uimp) 2500V 1 N.O. 3 2.5mm (0.098in) 10N (2.25lb) 5mm (0.197in) 160mm (6.29in) per sec 2 Cycle per sec UL approved glass filled polyester Acetal IP30 3x break-outs -25°C to +80°C (-13°F to +176°F) 2 x M3 front or 2 x M4 top 10,000,000 operations 1,000,000 operations Red Position Interlock Switches Safety Limit Switches Imp Product Selection Contact Action Operator Type Top Push Roller Top Push Cross Roller Contact Open Contact Slow break before make 1 N.O. & 1 N.C. Contact Closed 0mm 1 11/12 Conduit 5 3x breakouts 23/24 2.5 Type Catalogue Number Imp 1 (roller parallel to switch front) 440P-M18001 Imp 2 (roller perpendicular to switch front) 440P-M18002 Dimensions—mm (inches) 10.3 (0.41) Ø11 (0.43) 2.4 (0.09) 2xM3 5mm Roller Travel 20 (0.79) 37.7 (1.48) 4 (0.16) 54 (2.13) 2xM4 15 (0.59) 4 (0.16) 15.2 (0.6) 25 (0.98) 23.3 (0.92) Connections 11 12 23 24 1 N.O. & 1 N.C. 7-19