Safety Products Supplement MT-GD2 Specifications Standards Universal Metal Tongue Operated Safety Interlock Switch Description Interlock Switches The MT-GD2 is a robust tongue actuated safety interlock switch designed to fit at the opening edge of sliding, hinged or lift-off guards. With its dual entry slots and rotatable head, the MT-GD2 can offer eight different options for actuator entry. The MT-GD2 features a compact housing of only 117mm x 40mm x 43mm with DIN 50041 standard fixing centers and includes forced guided contacts and a tamper-resistant mechanism. The MT-GD2 is available with a variety of contact configurations enabling it to be used as part of a system for higher-risk applications. The unit is sealed to IP67 and has 1 conduit entry. Operation of the switch is achieved by the insertion of the specially profiled stainless steel actuator which should be permanently fixed to the leading edge of the guard door. An optional flexible actuator allows the MT-GD2 to operate on smaller radii doors (≥60mm) and a flat actuator gives additional mounting options. A version incorparating a latch release mechanism allows manual retention of the actuator in the switch until the release mechanism is manually activated. Features • • • • • • Strong and versatile, can be used in most applications Eight possible actuator entry points, easy to install Variety of contact configurations Optional latch release versions Industry standard fixing centers to DIN/EN 50041 Conforms to EN 1088, EN 292, EN 60947-5-1, EN 60204-1, EN 50041 78 Approvals Safety Contacts Utilization Rating Designation/Utilization Cat. A600/AC-15 (Ue) (Ie) N600/DC-13 (Ue) (Ie) Thermal Current (lth) Minimum Current Rtd. Insulation Voltage Rtd. Impulse Withstand Voltage Auxiliary Contacts Actuator Travel for Positive Opening Break Contact Min. Force Maximum Actuation Speed Maximum Actuation Frequency Case Material Actuator Material Protection Conduit Entry Operating Temperature Fixing Mounting Mechanical Life Weight Color Cleaning Torque Settings Fixing Bolts Lid Screws Terminal Screws IEC 60947-5-1, ISO 14119, ISOTR 12100, IEC 60204-1 CE marked for all applicable directives 2 N.C. positive break AC 15 600V 500V 1.2A 1.4A 600V 500V 0.4A 0.55A 10A 5V, 5mA DC (Ui) 500V (Uimp) 2500V 1 N.O. 6mm (0.24in) 240V 3A 250V 1.1A 120V 6A 125V 2.2A 12N (2.7lb) 1m/s 2 cycle per sec Painted zinc Stainless Steel IP67 1/2in NPT -20°C to +80°C (-4°F to +176°F) 4 x M5 Any position 1 million minimum 520g (1.15lbs) Red May be high pressure steam cleaned 1.6Nm 16.Nm 1.0Nm 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. MT-GD2 Latch Release Version Safety Products Supplement MT-GD2 Ordering Details Type Conduit Contact Type Contact 3 N.C. & 1 N.O. BBM 2 N.C. & 2 N.O. 3 N.C. & 1 N.O. 2 N.C. & 2 N.O. 4 N.C. MT-GD2 MBB — 1/2in NPT Actuator Standard Fully-Flexible Standard Standard Standard Standard Standard Fully-Flexible Standard Fully-Flexible Standard Fully-Flexible Extended Flat 2 N.C. & 2 N.O. BBM MT-GD2 Latch Release 3 N.C. & 1 N.O. Yellow MT-GD2 — 4 N.C. BBM 2 N.C. & 1 N.O. Catalog Number 440K-MT55022 440K-MT55029 440K-MT55026 440K-MT55025 440K-MT55027 440K-MT55024 440K-MT55050 440K-MT55051 440K-MT55041 440K-MT55045 440K-MT55053 440K-MT55054 440K-MT55038 w Ne w e N w Ne w e N w Ne w Ne w e N Accessories Dimensions—mm (inches) 18 (0.71) 4 (0.16) 36 (1.42) 3.5 (0.14) Catalog Number GD2 Standard Actuator Interlock Switches Description 440G-A27011 40 (1.57) 14.5 (0.57) 52 (2.05) (Discard the Alignment Guide for GD2) 20.7 (0.81) 32.7 (1.29) 52.0 (2.05) 3.5 (0.14) 17.5 (0.69) 25 (0.98) 20.7 (0.81) 32.7 (1.29) 8.5 14 29 (1.14) 57 (2.24) 35 (1.37) 440K-A11112 36 (1.42) 20.7 Semi-flexible Actuator 32.7 52.0 20.7 Actuator Guide 440K-A11144 55.5 (2.18) 40 (1.57) 15.5 (0.61) (Discard the Alignment Guide) 46.5 (1.83) Flat Actuator 35 (1.37) 29 (1.14) Actuator Guide M5 CSK 32.7 Semi Flexible Actuator M5 79 Safety Products Supplement MT-GD2 Accessories (continued) Dimensions—mm (inches) Description Catalog Number 13 (0.51) 2 x M3 Fully-flexible Actuator 51 (2.01) 18 (0.71) 4 x Ø5.5 (0.22) 19 (0.75) Ø10 20 (0.39) (0.78) 50 (1.9 50 100 (3.93) 19 (0.74) Sliding Bolt Actuator 440G-A27143 20 18 (0.7) 42 (1.65) (a) Tapped M5 440G-A27163 5.5 (0.21) Interlock Switches 40 (1.57 20.5 (0.8) 117.5 (4.62) 34 (1.33) 24 (0.94) 140 (5.51) 84 (3.3) 25.5 (1.0) 2.5 (0.09) 3 (0.11) 8 (0.31) 17.5 (0.68) 32.2 (1.26) 7.0 (0.27) Extended Flat Actuator 5.2 (0.2) Dia. 2 places 70 (2.75) 20 (0.78) 10.8 (0.42) 15 (0.59) 36 (1.41) 80 440K-A17116 Ne w Safety Products Supplement MT-GD2 Dimensions—mm (in) 119 (4.68) 118.5 (4.66) 4 x Fixing Holes Clearance for M5 20.5 (0.81) 40 (1.57) 30 (1.18) 10.5 (0.41) 40 (1.57) 30 (1.18) 60 (2.36) 22 (0.86) Dia. 11.5 (0.45) 8.75 (0.34) 5 (0.20) 38 (1.5) 60 (2.36) 102.4 (4.03) 10.5 (0.41) 24.6 (0.97) Front Entry 8.75 (0.34) 74.6 (2.93) 5 (0.20) 30.8 (1.21) 20.5 (0.81) 51 (2.0) 5 (0.20) 9.2 (0.36) 43 (1.69) 40.7 (1.6) 30.8 (1.21) 43 (1.69) End Entry 67.6 (2.66) 30.8 (1.21) 116.5 (4.59) 20.6 (0.81) 9.2 (0.36) Interlock Switches Connections (shown with guard closed, actuator inserted) Contact Action Contact Open Contact Closed Actuator withdrawal distance from full insertion 41 31 21 11 42 32 22 12 20 4 N.C. version 15 10 5 0mm 11/12 21/22 31/32 41/42 5.2 41 31 21 11 41 31 21 11 42 32 22 12 42 32 22 12 3 N.C. + 1 N.O. version: MBB 20 15 10 5.6 11/12 21/22 31/32 43/44 5.2 0mm 3 N.C. + 1 N.O. version: BBM 20 15 10 5.2 11/12 21/22 31/32 43/44 5.6 0mm 2 N.C. + 2 N.O. version: MBB 20 15 10 5.6 11/12 21/22 33/34 43/44 5.2 0mm 2 N.C. + 2 N.O. version: BBM 20 15 10 5.2 11/12 21/22 33/34 43/44 0mm 5.6 81