New Old Stock
Meltric 63-38043  Inletplug Manual Motor Controller/ DSN 30A 480v 
7 1/2 @ 480 V 
3HP @ 208 V
1 1/2 HP @ 240 V
1/2 HP 120 V
The above is exactly what is on the metal plates in each unit.
Please ask questions, I am usually very mechanically inclined, but also very color blind (all three color cones do not work much) I had to negotiate my way through a HS Electronics course... Color cones just don't work very well and no the new glasses are not a fix for Long story shorter, color codes on transistors are a punt and need to double check matching wires, so my electrical knowledge base is somewhat limited.
Each unit has instructions and fresh gaskets.