Glass-Filled Thermoplastic Female Insert Screw Terminal 24 + Ground Thomas & Betts Pos-E-Kon B Series standard size female sleeve insert features standard wire protection saddles for preventing cutting of strands during assembly and integral screw terminal contacts that provide for easy terminal wiring and fast assembly. It is made of glass filled thermoplastic material and has 2four + ground number of positions. It has voltage rating of 600 VAC and current rating of 16 A.