MC-18B-AC240 LS Metasol MC-18b-AC240 3-pole contactor rated for 7.5 H.P. 230 volt, 10 H.P. @ 460 volt 3 phase and has a 240 volt AC rated coil. This 18 AMP AC-3 contactor (32 AMP AC-1) comes with screw terminals, can be mounted on DIN rail or screwed to the panel back plate and comes with one side mounted auxiliary contact having 1 normally open and 1 normally closed contact set. Motor protective thermal overload relays can be added to the bottom of the Metasol MC-18b-AC240 contactor for complete motor protection. The manufacturer recommends this contactor as a replacement for the obsolete GMC-18 series.