... level auto startMulti-phases pump protected without waterProtected when no power, poor power, over electrical current, short circuit, circuit breaker, leakage protection.Description ... part side mounting pressure system, if the rated pressure is over 0.2 to 0.3Mpa, pressure switch will send ... part side mounting pressure system, if the rated pressure is over 0.2 to 0.3Mpa, pressure switch will send ...