The HARTING 24020050010 is a PreLink Assembly Kit, which is specifically designed to produce a secure and reliable connection between PreLink ECO receptacles and HRC-style terminals. This assembly kit includes two PreLink ECO receptacles, five HRC-style terminals with 2.8mm spacing, and five colored plastic insulators that can be used to help with quick identification of connections. The receptacles and terminals are designed to ensure a reliable, pressure-proof, and vibration-resistant connection that can support up to 10A of current.