Honeywell Technologies GLA Series Adjustable Roller Lever Limit Switch, 1 NO/1 NC (SPDT), IP67, Die Cast Zinc Epoxy

This limit switch is a compact, rugged actuator designed to detect mechanical position changes within industrial control and automation systems. It provides a user‑actuated roller‑lever mechanism that converts motion into an electrical change, suitable for harsh environments where a sealed, long‑life switching device is required.

• SPDT snap‑action contacts provide fast, reliable state change
• Rated switching AC voltage up to 600V for high‑voltage circuits
• DC switching capability to 250V and current handling to 6A for control loads
• Mechanical endurance of 15 million cycles for extended maintenance intervals
• Operating temperature range from −25 °C to 85 °C for varied site climates
• IP67 die‑cast zinc housing ensures ingress protection in wet conditions

• Suitable for actuation feedback on conveyor end‑stops in factories
• Ideal for position sensing of machine guards and doors
• Used with industrial contactors in motor control panels
• Can be used for limit detection in packaging and material handling
• Suitable for retrofitting into existing control cabinets requiring sealed switches

The unit employs an adjustable roller‑lever actuator that allows alignment and travel tuning to match mechanical linkages and varied mounting orientations.

It provides a single‑pole double‑throw contact set giving both normally open and normally closed outputs to facilitate break‑before‑make logic or safety interlocks.

The enclosure is manufactured from die‑cast zinc offering mechanical strength and resistance to impact while aiding environmental sealing.

It carries multiple standards approvals including UL, CSA, CE and CCC, which align with regulatory and safety assessment processes.

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.