Create a secure screw connection using a pair of phoenix-style terminal blocks. The connectors use screws to create metal contacts with stranded wire. Simply use a flathead screwdriver to open the cavity by unscrewing the terminal and close the cavity onto the wire by screwing the terminal closed. All models accept 28-14 AWG stranded wire (0.6-2.1mm). They are rated for 20-Amps of continuous current. These connections can be temporary or permanent.Number of Conductors: 4. Wire gauge: 28-14AWG. Rated Current Load: 20A. Input Voltage: 0-300 Volts AC or DC.