Our material is copper , don't be compared with the price of iron material 

DPDT switch :On-Off-On action

Current rating inductive:16A/125V   10A/250V

Temp op max:55°C

Panel cut-out: 30.5mm x :22mm Depth,

Visible external Dims: 38mm x 30mm

IP rating of IP65 gives full protection against dust ingress, and ingress by water from a nozzle - so more than enough to stand up to the weather

Unit:mm