Multi-Contact Solar Panel Original Mc4 Solar Connectors - Ul - for 12 AWG Wire - Original Mc4 ! Snap-in locking Locking by safety lock clip PV-SSH4 in accordance with NEC 2011, can be released only with tool Proven MULTILAM technology with high long-term stability, which ensures consistently low performance loss throughout the entire service life of the plug connector Tried and tested plug connectors, 12 years of experience in the field MULTILAM technology