Wide-gap ‘sugar cube’ relay in actuator application for medical beds

Innovative technical adaptations of existing and proven relay series that have been in the market for decades often help in meeting new application requirements, while keeping cost as low as possible.

A manufacturer of electric linear actuators used in medical beds and other applications was looking for a drive adjustment solution, that required a low-cost relay in common design that had to meet specific technical specs. The standard series AZ943 could meet all of these, except for the requirement of an increased contact gap
of at least 0.8 mm. ZETTLER’s engineering team delivered on this additional requirement by facilitating a technical adjustment to the relay series.

The resulting new AZ943W series is characterized by the increased contact gap of at least 0.8 mm. The relays are available as changeover (SPDT) and normally open (SPST). They have a switching capacity of up to 10 A at 277 VAC or 10 A at 30 VDC at a maximum ambient temperature of + 70 C. The electrical life is specified with up to 20,000 switching cycles.

For similar solutions or to discuss the wide variety of application opportunities for the range of American Zettler relays, please contact the author.

Datasheet: AZ943W

Datasheet: AZ943 (standard version)

About American Zettler
American Zettler, Inc., a Zettler Group company, produces over fifty different types
of relays to meet the many requirements of commercial and industrial applications.
Because of their high reliability, American Zettler relays are used in a wide range
of demanding applications including telecommunication and security systems, solar inverters and electric vehicle charging equipment, home appliances, lighting and energy management controls, HVAC/R, industrial controls and many other types of electric and electronic equipment. www.azettler.com.