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AZSR131 relays from ZETTLER for use in E-mobility wallbox charger.

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Application Spotlight, February 2020.

Global plug-in electric vehicles sales for the first half of 2019 reached more than 1.1 million units- a 46% increase over prior year. Estimated global sales for 2020 are projected to reach 4 million units, reaching 12 million units in 2025, and 21 million in 2030.
AZSR131 relays from ZETTLER for use in E-mobility wallbox chargerThis positive trend is also evident in associated sales of charging infrastructure solutions. In particular, wall charging stations – so-called “wallboxes” – that enable EV charging with AC voltage according to charging mode 3 (IEC 61851-1) are and will continue to be in extraordinary demand. They facilitate charging of electric vehicles with voltages up to 400V, and are used in protected areas such as parking garages, carports or private homes.
ZETTLER AZSR131 EV charging relay
A supplier of wallboxes contacted ZETTLER in Europe, because of their need for a relay compliant with the requirements of IEC 61851-1 for a new generation of EV charging wallboxes. The relays of ZETTLER’s AZSR131 series have a normally open contact (1 form A) and are UL and TÜV approved with 35A 277VAC and 30,000 switching cycles or 33A 277VAC and 50,000 switching cycles with TÜV. The relays are available in the standard version with 1.8mm contact gap and in a special version with up to 2.3mm. The relays are also available in a version in accordance with the extended household appliance standard IEC 60335-1 (GWT). This component solution in the EV charging space along with others, such as the new AZEV132 EV charging relay, keeps ZETTLER relays at the forefront in this significant green energy growth segment.
Please Contact Us for samples and data sheets of these new ZETTLER EV charging relays or similar solutions or to discuss the wide variety of application opportunities for the range of ZETTLER Relays.

New ZETTLER relay series AZEV116 / 132 meets stringent requirements of IEC62752 for Mode 2 charging of Electric Vehicles (EV).

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November 2019

Electromobility is progressing steadily and the plans of many car manufacturers to ultimately exit internal combustion engine technology are becoming ever more concrete.
American zettler relays for relay for EV charging systems

As with almost all emerging technologies, application-specific standards for EV charging have continuously evolved over the years as safety concerns and impacts to the electric utility grid were considered. For early pioneers of electrical vehicle supply equipment (EVSE) or charging stations, this meant constant re-engineering of existing systems to meet regional standards and uncertainty around future certification requirements.

For the charging of electric vehicles using household or CEE sockets, the IEC62752 standard offers system designers a welcome sense of clarity on what future regulations are likely to require. Charge mode 2 (Level 2 charging / IC-CPD) addresses necessary control and safety requirements for charging cables along with considerations for the type of currents and service life these products will endure.
American Zettler AZEV116 and AZEV132 relays

Fortunately for hardware designers of EVSE systems, ZETTLER’s new relay series AZEV116 and AZEV132 were developed specifically for use in accordance with IEC62752 and, more importantly, to meet the exceedingly stringent short-circuit withstand-current requirements of this standard. These relays also have an isolated signal monitoring contact to allow detection of any possible welding issues with the main contacts.

Highlights:

  • Designed for charging systems of charge mode 2 (IEC62752).
  • Normally open (1 Form A) with wide contact gap ≥ 2.25 mm.
  • Dielectric strength (coil/power contact) 4,000 Vrms.
  • Galvanic isolated signal monitoring contact (1 Form B).
  • UL, CUR and TUV approvals.

AZEV116:

  • Electrical lifetime: 50,000 switching cycles 16 A, 277 VAC @ 85C
  • Short-circuit withstand: ≥ 1.02 kA; ≥ 2.5 kA²s

AZEV132:

  • Electrical lifetime: 50,000 switching cycles 32 A, 277 VAC @ 85C
  • Short-circuit withstand: ≥ 1.5 kA; ≥ 6.0 kA²s

Please Contact Us for samples and data sheets of these new ZETTLER EV charging relays or similar solutions or to discuss the wide variety of application opportunities for the range of ZETTLER Relays.

ZETTLER’s AZ420 relay series End of Life (EOL) Notice

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Sept. 30th 2019

Dear Customers,

Due to diminishing global demand the ZETTLER Group has decided to discontinue all AZ420 series:

Discontinued Series: Replacement Series:
AZ420, AZ428 & AZ2428 No Drop-In replacement
AZ421, AZ429 & AZ2429 No Drop-In replacement
AZ431 & AZ439 No Drop-In replacement
Last Order Date: Last Ship Date:
October 31st 2019 TBD (see below)

We strongly recommend placing last time buy orders right away for immediate delivery.
All orders will be final: Non-Cancelable Non-Returnable.

The last ship date is targeted for end of Q1 2020/ beginning of Q2 2020. This date is subject to change.

Our Engineering and Sales teams are ready to answer your questions and assist with any engineering requests.

  • Best regards,
  • Patrick Millett
  • General Manager
  • American Zettler, Inc.

Join ZETTLER Group on October 15th in Anaheim at the Future Electronics Tech Day!

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Location: DoubleTree
Suites by Hilton Anaheim Resort – Convention Center, 2085 S. Harbor Blvd.
Anaheim, CA 92802

Event Date: Tuesday
October 15, 2019

RSVP: Register by Tuesday October 8, 2019

Join Zettler Group for this Free Event

Future Electronics invites you to attend the most advanced hands-on technical learning event in the region. This is a unique opportunity to gain exposure to new technology as you interact with over 50 of the industry’s top suppliers at the Technology Expo event. You can also choose to spend time in the classroom with deep-dive technical training taught by key technologists. Choose your own classes and customize your learning to your training needs.

Event Overview

Future Electronics is bringing together the largest group of leading technologists, from the industry’s top suppliers, to help you connect and learn about the latest technologies, tools, and services. The Technology Expo event will be open all day starting at 8:30am. We are offering 24 classes throughout the day ranging from the latest in edge computing, wireless, sensing, security, artificial intelligence, high performance analog, power, signal chain, connectors, IoT, and much more. We will be providing breakfast, lunch, and snacks throughout the day

Zettler Group

The Zettler Group will be exhibiting our latest product and service offerings for relays, magnetics, and customized LCD solutions. Meet our technical sales team and learn more about our products and latest offerings.

ZETTLER’ s AZ2150 use in poultry feeding systems.

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Application Spotlight, July 2019.

Electronic tools are increasingly used in many agricultural applications. In the field of animal feeding and livestock farming technology, environmental influences such as heavy contamination impose very specific requirements on the ability of electronic components to withstand these conditions.
ZETTLER´s AZ2150 use in poultry feeding systemsA market leader in the field of poultry feeding systems approached ZETTLER seeking a solution for the motor control of a screw conveyor that could withstand these extreme conditions. Based on the customer request, an epoxy sealed relay of the AZ2150 series was selected to isolate and protect the electrical contact from the external environment, ensuring a long life even under the given difficult environmental condition.
ZETTLER AZ2150 power relayAll common contact arrangements (1 Form A, 1 Form B and 1 Form C) are available for this relay. The switching capacity extends to up to 40 A at 250 V. Numerous contact ratings are approved by UL and VDE for several load types.
For similar solutions or to discuss the wide variety of application please contact us.

ZETTLER introduces high-capacity PCB mount solar relays optimized for 690VAC grid inverters.

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Product Spotlight, May 2019.

For the switching of 600VAC-800VAC circuits, large contactors have traditionally been the only viable option but new high capacity relays from ZETTLER are challenging those assumptions.
The new AZSR1160 and AZSR1180 PCB mount relays from ZETTLER provide system designers with a small form-factor alternative for switching power levels up to 165kVA. These new SPST relays can switch voltages up to 920VAC and currents up to 180A, all with a holding (coil) power of less than 0.5W. Contact gaps and insulation distances are optimized for commercial PV systems deployable up to 7000 m above sea level.
Key Features or Design Parameters include:

  • Specially designed terminals simplify thermal management and maximize lifetime
  • 3.6mm contact gap available
  • >10mm clearance/creapage
  • High surge breakdown voltage of 10kV
  • Coil voltage options from 6-48VDC
  • UL and TUV ratings
For a complete data sheet, follow the links: AZSR1160 and AZSR1180

ZETTLER introduces a number of new relays at 2018 Munich electronica

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Focusing on solar, e-mobility and multiple other applications, ZETTLER Group will showcase various new relays at this year’s November electronica show in Munich, Germany.
The new AZEV116 and AZEV132 series are next-generation IEC mode 2 Electric Vehicle (EV) charging relays in development for release in 2019. These relays are designed to survive high momentary currents that may occur on short circuits, thus ensuring outstanding reliability without contact welding. The AZEV116/132 series will also feature a potential monitoring contact, as required by IEC62752:2016, making these types of relays ideally suited for EV and other applications demanding high security and safety demands.
The newly developed AZSR1160 is a 160 A extreme high-power PCB Solar Relay, designed for PV applications of up to 36,8 kVA (single phase 230 VAC) / 111 kVA (three phase 400 VAC) – a highly attractive, small footprint substitute for conventional contactors. This relay is suitable for large commercial / rooftop-based PV systems and commercial solar fields.
AZSR190 is a 90 A high-power PCB relay for solar inverters. Developed for PV applications of up to 23 kVA (single phase 230 VAC) / 69 kVA (three phase 400 VAC) this relay is well suited for medium sized to larger roof top-based / commercial systems.
AZSR165 is a 65 A economy version of the new AZSR190 series. Developed for PV applications of up to 18,4 kVA (single phase 230 VAC) / 55 kVA (three phase 400 VAC) this relay is well suited for medium sized to larger roof top-based / commercial systems. ZETTLER recently also adapted this relay for a DC-side solar battery storage application, supporting a major industry player in clean home-energy solutions.
ZETTLERs AZSR131 was initially designed as a solar relay for residential and small roof top-based PV systems of up to 8 kVA (single phase 230 VAC) / 24 kVA (three phase 400 VAC). While not a new relay, ZETTLER continues to find new application extensions for this relay beyond just PV solar inverters. AZSR131 is suitable for diverse applications such as heat-pump solutions and Electro Vehicle wall box charging units and is, therefore, rapidly becoming a multi-purpose relay.
AZDC6 is a 600VDC miniature relay for RSS (Rapid Shutting Down System) for Solar installations, scheduled for 2019 release. The compact size allows for a thinner design of certain RSS boxes, that are deployed as part of compliance with 2017 NEC 690.12.
Visit us during Electronica 2018 from November 13th to November 16th in Hall A6 Booth 118.
Munich Electronica 2018
About American Zettler
American Zettler, 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

American Zettler’s AZSR165 in a Hybrid-Solar-Inverter System with Scalable Battery Storage

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Application Spotlight October 2018

Solar inverter solutions including scalable battery storage options are becoming increasingly popular.
One of the application challenges in these systems is to connect/disconnect the battery block to/from the inverter’s control circuitry.
A major clean home automation company approached Zettler seeking a solution that required switching of a 125 VDC battery while carrying load and charge currents of up to 50 Amps. Typically this would be an application scenario for high power DC contactors.
In close cooperation with customer engineering, Zettler’s team found an appropriate solution through reduction of the switching current down to 1.5 Amps by means of smart software controls. This measure fully enables AZSR165, a cost-effective solar AC relay, to fulfill the requirements of switching the DC path.
This elegant application-extension for one of many Zettler AC solar relays provided significant cost savings compared to the use of a DC contactor.
Datasheet: AZSR165
For this an many other application examples of American Zettler relays, please visit www.azettler.com
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

American Zettler responds to increasing DC power demand with AZDC105

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Application Spotlight July 2018

Aliso Viejo, California, USA, 13 July 2018 -In response to an increasing demand for DC power switching and high power battery charging, American Zettler is proud to release the AZDC105 series relay. The AZDC105 is the first in what will be a large family of relays designed to switch a variety of DC loads.  Recently, it seems everything has a battery. As battery sizes increase, the problem becomes how to safely isolate the batteries from their charging circuit in the event of a fault.
The AZDC105 is rated to 150A@60VDC by both UL and TUV, and it has Class F insulation standard to maintain integrity at high temperatures.  This PCB-mounted relay features internal magnets for arc-extinguishing, thus allowing for an extended life expectancy.  A wide (3.0mm) contact gap and a 1 form X (double make) contact configuration help the AZDC105 to maintain a contact-to-contact dielectric strength of 4kV.
The AZDC105 is ideal for high draw DC applications such as:  battery operated carts; inverter pre-charging; refrigerated transport; and electric vehicle charging.
Data Sheet: AZDC105
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