This part is a kind of semiconductor called 3SB50-01-xxxx.
Function of this product has Indicating lamps and push buttons.
Manufacturers : Siemens
Image and pinout :

Some of the text within the PDF file :
3SB5 Indicating lamps and push buttons http://www.net/ Answers for industry. s e g a P k n a l B http://www.net/ Commanding and Signalling Devices 2 Introduction 3SB5 Pushbutton Units and Indicating Lamps, 22 mm 4 General data Actuators and Indicating Lamps, Plastic, 22 mm 6 9 10 11 12 12 12 13 15 16 18 http://www.net/ Actuators Contact block Indicating lamps Illumination module Accessories and Spare Parts Pusher caps Lamps Protective covers Miscellaneous accessories Enclosures General data Enclosures with standard fittings Empty enclosures Contact blocks and lampholders Accessories for enclosures 19 19 3SB5 Commanding and Signalling Devices Introduction Overview 9 3SB5 Pushbutton units and indicator lights Designs Nominal diameter Version [ ... ]
3SB50-01-xxxx PDF Datasheet Download
