SP3/4CP10 is a plug-in connecting system from Wieland Electric that is designed for use in low voltage industrial applications. It features several advantages over traditional hard-wired connections, such as a simplified installation process, improved environmental protection, and a secure locking system. The plug-in connectors are comprised of plastic housings and stamped contact inserts, each of which are UL/CSA certified. To ensure a secure connection, the plug-in connectors feature a locking mechanism and an internal contact pressure spring that ensures a reliable connection and increased safety. The protective housings are also designed to be impact-resistant and able to stand up to harsh industrial conditions.