DS DS/EN 50521
DS DSEN 50521 2009-JAN-23 Connectors for photovoltac systems - Safety requrements and tests
DS DSEN 50521 2009-JAN-23 Connectors for photovoltac systems - Safety requrements and tests
This Standard applies to connectors of application Class A according to EN 61730-1 for use in photovoltaic systems with rated voltages up to 1 000 V d.c. and rated currents up to 125 A per contact. This standard applies to connectors without breaking capacity but might be engaged and disengaged under voltage. NOTE For connectors according to Class B and C of EN 61730 as well as for protection for Class II equipment intended for use between 0 V and 50 V d.c. in photovoltaic-systems this standard may be used as a guide.
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