... feedback and return timerl Sealed to IP65. Parameters: Voltmeter, frequency meter, Ammeter, output(kw/kva), hourmeter, oil pressure, water ... temperature, Engine speed, mains frequency, battery voltage, fuel level.Protection:1) 3 phase ... Generator protections: Over-/under voltage, Over-/under frequency, Current/voltage asymmetry, Overcurrent/overload.2) 3 phase ...