Impel offers ISIEC metric frame IM Series Motors in Cast Iron body construction.IM series covers output from as 0.18kW to 7.5kW in frame size 63 to 132M in 2, 4 & 6 pole speeds. Available with IE2, IE3 Efficiency. Many applications often have adverse operating conditions including repeated starting and occasional overloading; the IM cast iron range is well suited to these situations.