Interlock Switches Hinge Switches Rotacam Specifications Description A heavy-duty hinge actuated safety interlock switch, the Rotacam shaft can be used as, or connected to, the existing hinge pin for direct operation of the switch. Machine power is isolated when the guard has been opened just 5°. For applications requiring a larger degree of operation the internal cam can be adjusted from 5° to 11°. 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, SUVA and TUV Contact Arrangement 2 N.C. & 1 N.O. direct opening action Utilization Cat. AC (Ue) (le) DC AC 15 500V 250V 100V 1A 2A 5A 250V 0.5A 24V 2A Thermal Current (lth) 10A Minimum Current 5V 5mA DC Safety Contact Gap >2mm (0.08in) Rtd. Insulation Voltage (Ui) 500V Rtd. Impulse withstand Voltage (Uimp) 2500V Shaft Rotation to Achieve Contact Operation 11° maximum; 5° minimum, (adjustable) Note: After adjustment, the cam must be secured in position with the supplied cam locking pin to ensure optimal performance. Break Contact Min Force 12cNm (torque on shaft) The Rotacam is available with two N.C. safety contacts and one N.O. auxiliary contact. The switch includes the necessary safety related functions, such as forced guided contacts and a tamper resistant mechanism, allowing machinery to be safeguarded in compliance with the machinery directive. Max Actuation Speed 160mm per sec (6.29in) Max Actuation Frequency 1 Cycle per sec Case Material Heavy duty die cast alloy Actuator Shaft Stainless Steel Protection IP66 The die-cast housing is sealed to IP66 and features one M20 conduit entry (1/2in NPT and connector style also available). Two different shaft lengths of 30mm and 85mm can also be specified. Conduit Entry 1 × M20 or quick-disconnect style EX and Pneumatic styles of Rotacam are also available; see the Explosion Proof section on page 16-1 for more information. Features • Can be used as a hinge pin on light and medium weight guard doors • Isolates power within 5° of door movement • Degree of operation can be customized with adjustable cam • Robust die-cast case, ideal for heavy duty applications • Contacts, 2 N.C. & 1 N.O. Operating Temperature -25°C to +80°C (-13°F to 176°F) Fixing 2 x M4 Mounting Any position Mechanical Life >1,000,000 operations Electrical Life >1,000,000 operations Weight 420g (.926lb) Colour Red Note: The safety contacts of the Guardmaster switches are described as normally closed (N.C.) i.e., with the guard closed, actuator in place (where relevant) and the machine able to be started. Fixing Methods Roll Pin Pre-Bored The actuator shaft is pre-bored allowing the existing hinge pin to be utilised as the flexing point. 3-76 Solid Shaft The solid actuator shaft can be used as the hinge pin on certain guards. Interlock Switches Hinge Switches Rotacam Product Selection Safety Contacts 2 N.C. Auxiliary Contacts 1 N.C. BBM/MBB Type Size (L=Length: D-Dia) mm (inches) Catalogue Number Shaft Type M20 Conduit M20 Conduit/ 1/2in Adaptor Quick Disconnect L = 30 (1.18) D= 16 (0.63) Pre-Bored 440H-R03074 440H-R03078 440H-R03111 L = 85 (3.35) D= 12.7 (0.5) Solid 440H-R03079 440H-R03088 440H-R03112 BBM Recommended standard cordset, 2m (6.5ft). See page 15-10 for additional lengths. 889D-F8AB-2 Approximate Dimensions—mm (inches) Dimensions are not intended to be used for installation purposes. 3.5 (0.14) 99 (3.9) 38 (1.5) 6.5 (0.26) L 6.5 (0.26) D 6.5 (0.26) 86 (3.39) 65 (2.56) 36 (1.42) 52 (2.05) 24 (0.94) 14.5 (0.57) 24.5 (0.96) 15.5 (0.61) 25 (0.98) 13 (0.51) 2 x holes 3.2 (0.13) 2 x holes M4 Note: Holes only on pre-bored models. 5 (0.2) 8 (0.31) 9.5 (0.37) 3-77 Interlock Switches Hinge Switches Rotacam Typical Wiring Diagrams Safety Circuit 1 Safety Circuit 2 Auxiliary Circuit 33 21 11 34 22 12 2 N.C. + 1 N.O. Connector Pinout 1 2 7 8 3 4 6 5 Contact Action Contact Open 1 7 6 5 4 3 8 Terminal 11 12 21 22 33 34 Contact N.C. N.C. N.O. Ground 2 N.C. + 1 N.O. (BBM) 5 Contact Closed Shaft rotation 11/12 21/22 33/34 6 3-78 0mm