Sungrow Solar String Inverter

Sungrow Solar String Inverter

  • Photon test results “very good”, with a maximum efficiency of 98.3%
  • Integrated combiner box: 8 x MC4 connector pairs with DC string fuses, Type II overvoltage.
  • protection and DC switch, more safety and lower the system cost.
  • Compact design
  • Sound control
  • Easy installation
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Sungrow Solar String Inverter.This Sungrow Solar Inverter is 98% efficient and very good inverter .

Brand=”Sungrow” Manufacturer=”Sungrow”



Techninal Data
Input Data SG 33KTL-M SG 40KTL-M
Max. PV input voltage 1000V
Startup voltage 250V
Nominal input voltage 585V 700V
MPP voltage range 200~950V
MPP voltage range for nominal power 500~850V
No. of MPPTs 3
Max. number of PV strings per MPPT 2 / 3 / 3 3 / 3 / 3
Max. PV input current 82 (22A/30A/30A) 90A (30A/30A/30A)
Max. current for input connector 12A
Output Data
Nominal AC output power 33000W 40000W
Max AC output power (PF=1) 36000W 44000W
Max. AC output apparent power 36000VA 44000VA
Max. AC output current 52A 53A
Nominal AC voltage 3/N/PE, 400Vac 3/PE, 480Vac
AC voltage range 352~440Vac 422~528Vac
Nominal grid frequency 50Hz/60Hz
Grid frequency range 45~55Hz/55~ 65Hz
THD < 3% (Nominal power)
DC current injection <0.5%In
Power factor >0.99@default value at nominal power, (adj. 0.8overexcited ~0.8underexited)
Anti-islanding protection YES
DC reverse connection protection YES
AC short circuit protection YES
Leakage current protection YES
DC switch YES
DC fuse YES
Overvoltage protection DC Type II DIN rail surge arrester (40KA)/AC Type II
System Data
Max. efficiency 98.80% 99.00%
Max. European efficiency 98.50% 98.60%
Isolation method Transformerless
Ingress protection rating IP65
ight power consumption <1W
Operating ambient temperature range -25~60℃ (>50℃ derating)
Allowable relative humidity range 0~100%
Cooling method Smart forced air cooling
Max. operating altitude 5000m (>3000m derating)
Display Graphic LCD
Communication RS485 (RJ45 connector)/Ethernet (optional)
DC connection type MC4
AC connection type Screw Clamp terminal
Mechanical Data
Dimensions (W*H*D) 510*700*240mm
Mounting method Wall bracket
Weight 39kg



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