80A high power PCB relay designed for the PV industry
Designed to meet solar inverter and other application requirements for the PV industry, ZETTLER Electronics has announced a single pole 80A solar relay. The AZSR180 was developed for PV applications of up to 20/55kVA (single-/three-phase), is suited for medium sized to larger roof top-based as well as commercial systems, deployable up to 4km above sea level.
The AZSR180 series can handle 80A current at an energy efficient holding power of only 100mW and offers a dielectric strength of 5,000Vrms. The wide contact gap (greater than 2.05mm) and large isolation spacing (greater than 10mm) support extended requirements for use in PV applications.
A special feature of AZSR180 is a thermally-conductive copper bridge that connects the two parallel contact springs for level distribution of any excessive heat between the two contacts. Even in an extremely seldom case of a total failure of one of the two parallel-connected contacts, this 'thermal bridge' prevents critical overheating of the latter contact and thus relay destruction.
With the AZSR180, Zettler has demonstrated its commitment to continue expanding its wide range of innovative AC side solar relays. The company is responding to ever-increasing inverter-design driven specifications related to physical size, energy efficiency and relay safety features. In parallel, it is also meeting demands for higher isolation requirements (e. g., IEC 62109 and UL 62109), as well as higher kVA capacities and switching currents.
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