1 Scope

This International Standard applies to connectors for use in the d.c. circuits of photovoltaic systems according to class II of IEC 61140:2001 with rated voltages up to 1 500 V d.c. and rated currents up to 125 A per contact.

This standard applies to connectors without breaking capacity but which might be engaged and disengaged under voltage.

This standard also applies to connectors which are intended to be built-in or integrated in enclosures of devices for photovoltaic systems. This standard may be used as a guide for connectors in photovoltaic systems of classes 0 and III according to IEC 61140:2001 as well as for protection for Class II equipment intended for use at less than 50 V d.c. This document does not apply to connectors for data collection, tracker controls or similar, but it may be used as a guide for those connectors.

This standard covers PV connectors whose dimensions are not defined in any national or international technical standard. Connectors are identified and tested with compatible mating part (or parts if multiple exist) and are to be of the same brand, unless multiple product manufacturers are submitting under the same evaluation for the purpose of proving intermatability.

Summary of Topics

First Edition of the UL IEC-Based Standard for Connectors for DC-Application in Photovoltaic Systems – Safety Requirements and Tests, UL 62852, dated July 6, 2022. UL 62852 is an adoption of IEC 62852 (Edition 1.1, issued March 2020). The IEC standard consists of the first edition (2014-11) and its amendment 1 (2020-03). Please note that the National Difference document incorporates all of the U.S. national differences for UL 62852.