连接端

For leads per IEC :
1.5 - 16 mm² round stranded and finely stranded without wire-end ferrule
1.5 - 16 mm² finely stranded with wire-end ferrule*
1.5 - 10 mm² finely stranded with wire-end ferrule
1.5 - 10 mm² round solid

* Recommendation: 16 mm² crimped with Rittal crimping pliers for wire-end ferrules WM-Crimp, Weidmüller crimping tool PZ 16 or Phoenix Contact crimping pliers Crimpfox 25R

for leads per UL:
Cu AWG 14 - 6
Class B (UL486E)