American Zettler’s “workhorse” relay AZ576 provides solutions for switching ballast loads in street lighting project.

Relay Applications in Public and Commercial Lightning

Application Spotlight July 2017

American Zettler’s “workhorse” relay AZ576 provides solutions for switching ballast loads in street lighting project.

The lighting applications market continues to grow and diversify. The increased use of electronic ballasts requires relays to switch ever increasing inrush current and at higher voltages. In addition, designers are looking to build one circuit which meets the needs of many different countries’ system voltages.

A manufacturer of consumer and commercial lighting systems required a relay for a North American roadway lighting project. The relay needed to switch electronic ballast loads at 347VAC and 480VAC for use throughout the continent. The AZ576 was up to the challenge! Nominally rated for 20A@277VAC resistive (30K cycles, 85 C), the AZ576 successfully passed both standard and electronic ballast load testing to switch 3.7A@347VAC and 2.7A@480VAC (10K cycles, 105 C).

Beyond its suitability as a relay for the lighting industry, the AZ576 also carries ratings for: general use, pilot duty, Tungsten, HP, standard ballast, and TV. Housed in a small, industry-standard package and footprint, the AZ576 is a “workhorse” ideally suited for the needs of many applications and markets.

Datasheet: AZ576

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

Relay Application in Renewable Energy Heat Systems

Application Spotlight May 2017

About the renewable energy market

Trends in renewable energy applications in heating systems include the use of heat pumps that convert existing energy in soil, air or water into useable heat for living spaces. A leading manufacturer of modern heating systems required a relay for a new generation of heat pumps.  The purpose of the relay is to bypass the charging resistance in order to limit the start-up current of a motor inverter that feeds the compressor motor. The glow wire version of American Zettler’s  new AZSR131 power relay is designed to pass glow wire testing, making the relay  compliant with the requirements of IEC 60335-1 for household appliances.

About the design

AZSR131 relays have UL and TUV recognized switch ratings of 35A@277VAC at 85°C for 30K cycles. Their usage in heat pump controls demonstrates the versatile applicability of this component, which was initially   designed for use in solar inverters where the relay disconnects the inverter from the mains public grid in compliance with IEC 62109.

American Zettler continues to play a leading role in providing components solutions for New Energy markets in solar relay  and EV charging applications, among others.

Datasheet: AZSR131 series

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