Huawei SUN2000-50KTL-M3 – Standards Compliance (others available on request) Huawei SUN2000-50KTL-M3 – Notes and explanations 1 The maximum input voltage is the upper limit of the DC voltage. A higher input DC voltage would probably damage the inverter. 2 Any DC input voltage outside the operating voltage range may cause the inverter to operate incorrectly. 3 SUN2000-30~50KTL-M3 raises the potential between PV and ground to above zero by the built-in PID recovery function to resolve module degradation by PID. Supported module types are: P-type (mono, poly), N-type (nPERT, HIT).