This part is a kind of semiconductor called 2MBI400TB-060.
Function of this product has IGBT Module.
Manufacturers : Fuji Electric
Image and pinout :

Some of the text within the PDF file :
SPECIFICATION Device Name Type Name Spec. No. : : : IGBT Module 2MBI400TB-060 MS5F 5293 Fuji Electric Co.,Ltd. Matsumoto Factory Oct. 22 '02 Y.Kobayashi Oct. 23 '02 T.Miyasaka K.Yamada T.Fujihira MS5F 5293 1 14 a b c http:// H04-004-07 Revised Records Date Classification Ind. Content Applied date Issued date Drawn Checked T.Miyasaka K.Yamada Approved Oct.-23-'02 enactment T.Fujihira Nov.-29-'02 Revision a Revised Reliability test condition (P7/14) Revised characteristics curve up to 800A (P11/14, 12/14) Revised ton,tr,toff,tf Y.Kobayashi T.Miyasaka K.Yamada T.Fujihira Jan.-31-'03 Revision b Y.Kobayashi T.Miyasaka K.Yamada T.Fujihira Apr.-07-'04 Revision c (P4/14) Revised Rth curve (P12/14) Y.Kobayashi T.Miyasaka K.Yamada Y.Seki MS5F 529 [ ... ]
2MBI400TB-060 PDF Datasheet Download
