Solar MC4 Connector T-Branch 3 to 1 Splitter MMMF + FFFM Pair -One pair of MC4 3 to 1 T-Branch Connectors for solar panels. Includes both MMMF and FFFM. Used for parallel connection between panels and maintain the voltage of your panel configuration Compatible Solar Cable: 14/12/10 AWG (2.4/4.0/6.0mm2) Maximum Voltage: 1500V Maximum Current: 50A Insulation Material: PPO Contact Material: Silver plated copper Contact Resistance: Less than 0.5m ohm Operating Temperature: -40°C to 125°C (-40°F to 257°F) Protection Rating: IP67