This part is a kind of semiconductor called BF4M2011.

Function of this product has ENGINE.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

OPEN GENSETS WITH DEUTZ ENGINE 1500 RPM 400/230 V 50 Hz Type AD-041 40/32 Kva/KW (PRP) 42/33,6 Kva/KW (LTP) Engine: BF4M2011 Alternator: ECO32-3S/4 Scope of Supply: The engine and the alternator are mounted together forming a rigid monoblock, the shafts are connected by a flexible disc connection. The monoblock is mounted on a steel base frame via silent blocks. The base frame is including a fuel tank. Starting is electric and it includes a battery. The genset monitoring system consist of a control module. GEN SET POWER Voltage 415/240 400/230 380/220 240/120 230/115 220/110 PRP* Kva/KW: Available electrical power (at a variable load) with a medium of 80% of the indicated maximum power. A 10% overload capability is available Hz 50 50 50 50 50 50 Phase 3 3 3 3 3 3 Cos Ø 0,8 0,8 0 [ ... ]

BF4M2011 PDF Datasheet Download