GD2 Datasheet, PDF (1/2 Pages) Allen-Bradley – Non contact Switches

Interlock Switches
Non contact Switches
Ferrogard GD2
Description
The Ferrogard range of magnetically actuated safety switches offers
Non contact reliability together with tolerance to misalignment.
They are designed to be installed so that when a guard door is
opened, the action of the magnetic actuator being removed from the
switch opens the N.C. safety contacts which are intended for the
isolation of control power to a machine primary control element.
The GD2 version has a stainless steel housing for added protection
against inadvertent impacts to the housing. The contacts are
completely sealed to meet IP68 (NEMA6P) requirements, making
them ideal for wet environments. The GD2 also has a wider
temperature range than the plastic Ferrogard switches, making them
useful in a wider range of applications.
Unlike some magnetic switches, the Ferrogards have protected
safety contacts to help ensure that they do not fail to danger. In
addition, some versions have independent auxiliary signal contacts
to indicate the machine and guard condition.
All Ferrogards have internal non-resettable overload protection on
the safety contact. They should be protected by an external fuse
rated as shown in the specifications table.
Features
• Non contact actuation
• High tolerance to misalignment
• High switching current (up to 2A AC, 1A DC)
• Wide Temperature Range (-25°C to +125°C)
• Stainless Steel Housing
• Various Contact Arrangements
Specifications
Standards
EN954-1, ISO13849-1, IEC/EN60204-1,
NFPA79, EN1088, ISO14119,
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
and cULus
Reed Contacts
Safety Auxiliary
Operating Distance – Make 12mm (0.47in) 15mm (0.59in)
Operating Distance – Break 23mm (0.91in) 26mm (1.02in)
Closing Time
3.0ms 0.5ms
Dropout Time
2.1ms 0.3ms
Bounce Time
0.7ms 0.7ms
Initial Contact Resistance 15mΩ 10mΩ
Initial Capacitance, Terminal 0.65pF 0.2pF
to Terminal
Initial Insulation Resistance, _1x10⁶ _{Ω 1x10}⁶ _Ω
Terminal to Terminal
Safety Contact Switching
Capability
AC 250V AC 2A max
DC 24V DC 1A max
Safety Contact External
Fusing
AC <1.6A quick blow
DC <0.8A quick blow
Auxiliary Contact Switching 300V DC, 250V AC, 0.5A including
Capability
inrush. 15VA/10W suitable for AC/DC
circuits
Min Initial Breakdown
Voltage
600V AC
600V AC
Environmental
IP68 (NEMA 6P)
Cable
0.50mm² (20 AWG) 7 wire
Flexible thermoplastic elastomer
Jacket OD 8mm (0.2in)
Operating Temperature
-25°C to +125°C (-13° to +257°F)
Case Material
Stainless Steel; BS3146 ANC4B (316L)
Mounting
Any Position; M4 mounting security
screws included
Weight (not including cable)
Sensor
Actuator 156g (0.34lbs)
168g (0.37lbs)
Electrical Life
1 x 10⁶ at rated load
Mechanical Life
10 x10⁶
Vibration
7-15g, 10 to 200Hz
Shock
50g
3-50