House meterial: Phenolic(bakelite) UL94-V0
Volt: 660v amp: 20A
Number of poles: 2p--50p
Terminal insert: Brass, nickel plated

Clamping area: 4mm sqare, 18--1210AWG
Connection: M4 screws, zinc plated and 250 terminal
Comply with the standerd of ROHS.
CE, UL and CQC approved