For Immediate Release
4/29/2025

ZETTLERs AZ2280 Relay Achieves UL 121201 Certification, Leading the Charge in North American HVAC-R Applications

As the North American HVAC-R industry transitions towards lower global warming potential (GWP) refrigerants, the demand for components that meet stringent safety and performance criteria has intensified. ZETTLER is proud to announce that its popular AZ2280 series of power relays has successfully passed the rigorous UL 121201 certification, affirming its compliance with the requirements of UL 60335 for applications using A3 refrigerants. This new AZ2280R ignition protected option maintains ZETTLER Relays HK as a premier choice for HVAC-R applications including Electrical Heat Pumps, Air-Conditioners, and Dehumidifiers, Refrigerating Appliances, Ice-Cream Appliances, and Ice-Makers.

Previously already certified as IP67 and for A2L refrigerants under UL's LZGH category, the AZ2280R's new certificate under UL's NCKL ensures its suitability for use in Class I, Division 2, and Class III hazardous locations, simplifying customer’s product evaluations to UL 60335 requirements. With its long proven design and adherence to the latest safety standards, ZETTLER continues to lead the way in delivering innovative and compliant solutions for the evolving HVAC-R market.

For more information:

ZETTLER Electronics (HK) Ltd.
Unit 2A, Wing Tai Center
No. 12 Hing Yip Street, Kwun Tong,
Kowloon, Hong Kong
Phone: +852-2375-1288
sales@zettlerhk.com