IP67 Snap Action Limit Switch Rotary Lever Die Cast Zinc, 2NO/2NC, 600V

  • RS Stock No. 808-3129
  • Mfr. Part No. GLAA20A2B
  • Manufacturer Honeywell
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

Honeywell GLA Series Limit Switches

The GLA series of limit switches belongs to part of the wider GLS range of general purpose limit switches from Honeywell. The GLA Series is a non-plug in solution with a rugged metal construction. These limit switches been designed for worldwide applications and meets the global EN 50041 standard for switch mounting centres.


• Both normally closed (NC) snap actions contacts and normally open (NO) slow action contacts are positive opening. • An analog output is available with models featuring a side rotary actuator.
• Operating temperature between -40 °C and +85 °C.
• Able to withstand some washdowns, shock and vibration.
• Models with single pole double throw (SPDT) and two pole single throw (2NC and 2NO) contact blocks are galvanically isolated. With double pole double throw (DPDT) contact blocks, each pole is galvanically isolated.
• GLA limit switches feature bifurcated contacts.


• GLA limit switches have a modular design. The bodies, actuators and contact blocks can easily be adjusted, allowing you to customise the unit to suit your application. The models are available with different conduit options enabling them to be used for global applications. • These limit switches are incredibly easy to install and maintain.
• GLA limit switches are rugged and can be used indoors or outdoors. They are constructed from die-cast electrostatic epoxy coated zinc.
• You can have full confidence that these limit switches are a robust option. They are suitable for repeated use, with a mechanical lifespan of up to 15 million operations.

Product Applications:

Suitable applications for GLA limit switches include:
• Aerial lifts and boom lifts
• Assembly lines, conveyors, cranes, elevators and hoists
• Construction equipment and machinery, including vehicles and lift trucks
• Material handling and machining tools
• Textile machinery
• Packaging equipment
• Transportation hubs
• Valves
• Railroad signalling equipment and locomotives
• Apertures and doors

Can I buy spare or replacement parts?

Yes, all of the levers that make up side rotary assemblies can be purchased as replacement parts. All switch heads that meet standard EN 50041 can be removed and replaced.


IEC/EN 60947-5-1
While IEC/EN 609747-1 covers general rules relating to low voltage switchgear and controlgear, IEC/EN 60947-5-1 specifically relates to control circuit devices and switching elements. The standard monitors the characteristics of devices, the electrical and mechanical requirements and the functional requirements.

GLC and GLD limit switches are constructed from housing that meets EN50047. EN50047 applies to position switches with an automatic return actuator. Models that meet EN50047 feature standardised characteristics and dimensions (30.5 x 31.1 x 68 mm).

IP 66
A rating of IP 66 ensures that the limit switch units are protected against dust and low-pressure jets of water.

Sealed to NEMA 1, 4, 12, 13
NEMA 1 states that enclosures can be used indoor and offers a degree of protection against contact with the equipment enclosed.
NEMA 4 states that enclosures can be used either indoor or outdoor and provide protection against windblown rain and dust, hose directed water and splashing water.
NEMA 12 states that enclosures are intended for use indoors and offer some protection from dust, dirt, falling dirt and dripping non-corrosive liquids.
NEMA 13 states that enclosures are used indoors and offer a level of protection from oil, non-corrosive coolants, spraying water and dust.



GLAA20A2B Limit Switch

Model GLAA20A2B is a double pole, double throw (DPDT) snap action limit switch. It features two normally open (NO) and two normally closed (NC) contacts.

This limit switch has an adjustable side rotary actuator (38 mm to 93 mm) with a 19 x 6 mm steel roller.

GLAA20A2B has a 0.5" to 14 NPT conduit, ensuring that it is suitable for North American type cables. It has operating torque of 0.33 Nm or 2.9 in-lb.

Fitted with silver contacts as standard, this model is perfect for your power switching applications.


UL/ UL listed for Canada


  • GLA limit switches have not been designed as emergency stop or safety devices. They must not be used in applications where personal injury could occur as a result of the products failing.
Attribute Value
Actuator Type Rotary Lever
Pole and Throw Configuration DPDT
Normal State Configuration 2NO/2NC
IP Rating IP67
Maximum Current 10 A
Housing Material Die Cast Zinc
Maximum AC Voltage 600V
Maximum DC Voltage 250V
Connection Type 1/2 in NPT Conduit
Series GLA
Contact Type Snap Action
Terminal Type Wire Lead
Length 42mm
Width 42mm
Mechanical Life Minimum 15000000 Operations
Maximum Operating Temperature +85°C
Mounting Orientation Side
Depth 82mm
Minimum Operating Temperature -25°C
Dimensions 42 x 42 x 82 mm
8 In Global stock for delivery within 4 - 6 working days
Price Each
MYR 674.17
Per unit
1 - 5
6 - 14
15 - 24
25 +
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