This part is a kind of semiconductor called 80-GC6NLT1.
Function of this product has GAS ENGINE-GENERATOR SET.
Manufacturers : MTU Onsite Energy
Image and pinout :

Some of the text within the PDF file :
A tognum Group Brand GAS Engine-Generator Set 80-GC6NLT1 80 ekW 60 Hz Standby / / 208 - 600V System Ratings Standby Voltage (L-L) Phase PF Hz Natural Gas Ratings: Amps Natural Gas Ratings: kW/kVA LP Gas Ratings: Amps LP Gas Ratings: kW/kVA skVA@30% Voltage Dip Generator Model* Temp Rise Connection 240V** 1 1.0 60 313 75/75 321 77/77 157 363CSL1607 130°C/27°C 12 LEAD ZIG-ZAG 240V** 1 1.0 60 313 75/75 321 77/77 310 363CSL1617 125°C/40°C 4 LEAD 208V** 3 0.8 60 278 80/100 278 80/100 177 362CSL1604 130°C/27°C 12 LEAD LOW WYE 240V** 3 0.8 60 241 80/100 241 80/100 177 362CSL1604 130°C/27°C 12 LEAD HI DELTA 480V** 3 0.8 60 120 80/100 120 80/100 237 362CSL1604 130°C/27°C 12 LEAD HI WYE 600V** 3 [ ... ]
80-GC6NLT1 PDF Datasheet Download
