Honeywell GLA Series Adjustable Roller Lever Limit Switch, 1 NO/1 NC, IP67, Die Cast Zinc Housing, 50V

This limit switch is a Compact electromechanical device designed to detect position changes and provide discrete control signals within industrial systems. It is housed in a robust electrostatic epoxy-coated zinc enclosure and connects via an M20 conduit entry. The unit features a roller lever actuator for mechanical interfacing and is suitable for use in automation, electrical and mechanical control loops where a Durable snap-action contact response is required.

• Snap-action contacts deliver Rapid state change for precise control
• 1NO/1NC contact arrangement enables versatile switching logic
• IP67 ingress protection allows operation in wet and dusty conditions
• Mechanical life rated to 15,000,000 operations minimises replacement frequency
• Operating range from -25 to 85°C supports varied ambient temperatures
• Approved to UL, CSA and CE standards for recognised safety acceptance

• Suitable for conveyor end-of-travel detection in material handling
• Ideal for limit feedback on industrial actuators and valves
• Used with packaging machinery for position verification tasks
• Can be used for safety interlocks in electrical enclosures
• Suitable for heavy-duty machinery requiring high switching cycles

The enclosure accepts conduit via a 20mm threaded entry compatible with M20 fittings for secure installation.

The adjustable roller lever converts linear or rotary motion into a reliable mechanical trip, allowing fine positioning of the operating point.

The metal housing is finished with an electrostatic epoxy coating to reduce surface degradation in demanding environments.

The device provides one normally open and one normally closed snap-action contact to accommodate complementary control schemes.

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.

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.

EN50047
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.