Reduced horsepower consumption from the engine
Since the pump is not required to run all the time, especially over the road, there is less wasted power.
Extended pump life
Since the clutch allows the pump to be disengaged, life is greatly extended because the pump is not rotating when it is not being used.
Since the pump only runs when needed, fuel is saved. Also, the pump does not need to be replaced as often.
Since the clutch runs directly off the battery, all that is required is a basic switch to engage and disengage the clutch.
Rather than a mechanical linkage which can cause an additional force required by an operator to engage a clutch, an electric clutch is engaged by a simple flip of a switch. Because the clutch is engaged electrically, this switch can be incorporated into a control panel so the operator does not have to be in the same location as the clutch when it engages.
Cold weather starting
By using a clutch, the load is not engaged at start up. This allows the engine to come up to full efficiency before engaging the clutch.