The Phase 3 Powersafe range of Panel Sockets are designed to connect single & three phase high current power circuits. 
Technical specifications: 
Colour coded & mechanically keyed to prevent connection errors 
Flame retardant (UL94-V0)
Locking mechanism to prevent accidental disconnection under load 
Finger-proof contacts to prevent access to electrical contacts when uncoupled (M & F) 
IP67 ingress protection 
Daisy chain hook-up system 
Integral cable strain relief 
No special tools required
Current rating is 500 Amp