The ST755M4 is a one-piece motor terminal block designed for systematic wiring of electrical motors in junction boxes and circuit management applications. It features an M4 stud with steel, zinc-plated hardware and nickel-plated copper terminal links, rated for 38 A (UL/CSA) or 50 A (IEC) with a voltage rating of 300 V (UL/CSA General Industrial) or 630 V (IEC). The insulator base is constructed from high-strength polyester rated to 130°C with UL 94 V-0 flame rating, and the terminal links and hardware are provided pre-assembled. Wire termination ranges from #18 AWG (minimum) to #8 AWG (maximum), and wires must be terminated with UL-listed crimp lugs to achieve rated performance. This terminal block simplifies motor wiring compared to traditional bolt-and-nut methods, enabling easier circuit testing and motor replacement while supporting both wye and delta wiring configurations.