Photovoltaic connectors are single-contact electrical connectors commonly used for connecting solar panels. The compatible products are universal in the solar market today, equipping almost all solar panels produced since about 2011.[citation needed] Originally rated for 600 V, newer versions are rated at 1500 V, which allows longer strings to be created.

The EVO2 MC4 Connector Can Support Wires Of <10AWG (6mm2) And Has A Rated Withstand Voltage Of 1500V. It Is The Most Used Connector In Photovoltaic Systems. Can Be Made Into Cable Assemblies As Required.