Application Spotlight April 2018
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 gapof 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.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.
The trend in cooling applications away from refrigerants like R134a towards products like R290 continues at a fast pace. Propane-based refrigerants provide many advantages with respect to the environment, but with the significant caveat that propane is flammable. This presents challenges when using R290 around electronics.







With even more stringent energy savings standards in building and lighting controls, reduction of power consumption continues to be a major industry trend.
A leading manufacturer of plug-and-play switching devices needed a multi-purpose relay with an extremely low power consumption.
November 8th, 2016 – The Zettler Group published a new 