... price 2013 factory manufacture Explosion Proof Corrosion Proof Control Unit Application: 1, Designed for Zone 1 and ... explosion protection components.3,Built-in indicator light, pushbutton, conversion switch ,ammeter ,voltmeter ,potentiometer etc. and other ... Ingress protection:IP658,Corrosion resistance:WF29,Product form: Control unit Electrical hoist button:Ingress thread specification : G3/4 ...