The balance lead plug type is called EH
The P-140 was discontinued as they had three turbines the same size and weight, two of them 180. Since a lot of people bought 180’s to be future proof on the next model they decided to drop the 140, reduce the rpm on the 180Rxi-B to a 160+ turbine, and reduce the price to near the 140 original price.
So next step models that needed a little more than 140N like the 2.6m Viper Jets etc were more affordable without the cost of the NX turbine with charging. The great thing is the turned down 180 is less stressed and actually produces a little more than 160N :-)

Win win