To extend/retract the Lippert High-Speed Power Stabilizer Jack # LC298707 you will need to press and hold the the switch, as there is no automatic cut off.
However, this jack does have an integrated circuit breaker to protect you from damaging your RV by tripping the breaker if the circuit is overloaded while lifting the trailer.
I have included a review video as well for you to check out as well. view full answer...