MT-GD2 Datasheet, PDF (1/4 Pages) Allen-Bradley – Tongue Switches

Interlock Switches
Tongue Switches
MT-GD2
Description
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 centres 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 style incorporating 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 styles
• Industry standard fixing centres to DIN/EN50041
• Conforms to EN1088, EN292, EN60947-5-1, EN60204-1,
EN50041
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 TUV Nord
Safety Contacts
2 N.C., 3 N.C., 4 N.C. direct opening
action
Utilization Rating
AC 15
Designation/Utilization Cat.
A600/AC-15 (Ue)
(Ie)
N600/DC-13 (Ue)
(Ie)
600V 500V 240V 120V
1.2A 1.4A 3A 6A
600V 500V 250V 125V
0.4A 0.55A 1.1A 2.2A
Thermal Current (lth)
10A
Min Current
5V, 5mA DC
Rtd. Insulation Voltage
(Ui) 500V
Rtd. Impulse Withstand Volt. (Uimp) 2500V
Auxiliary Contacts
1 N.O. or 2 N.O.
Actuator Travel for Positive
Opening
Break Contact Min Force
6mm (0.24in)
12N (2.7lb)
Max Actuation Speed
1m/s
Max Actuation Frequency 2 cycle per sec
Case Material
Painted zinc
Actuator Material
Stainless Steel
Protection
IP67
Conduit Entry
1/2in NPT or M20 or Quick Disconnect
Operating Temperature
-20°C to +80°C (-4°F to +176°F)
Fixing
4 x M5
Mounting
Any position
Mechanical Life
1,000,000 operations
Weight
520g (1.15lbs)
Colour
Red
Torque Settings
Fixing Bolts 1.6Nm
Lid Screws 16.Nm
Terminal Screws 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 Style
3-20