Model GE4PV-LG Generator Interlock Kit fits GE Panels which have a 4-pole left-right throw main breaker and approximately 2 1/8" to 2 1/4" spacing from the gen greaker to the main breaker as shown. It is the same as our GE4PV kit except for the longer spacing.
 
The generator breaker must mount in the two top right breaker positions.