The Combi provides maximum flexibility by using the same plug-in zone in all basic terminal blocks, whatever the connection technology. The standard plugs (UP, SP, QP) feature the wire exit on top, while plugs with screw and spring-cage technology (UPBV, SPV) feature additional plugs with side wire exit. Standardized bridging, marking and testing accessories are available. Phoenix Contactwww.phoenixcon.com800-322-3225