This part is a kind of semiconductor called THED136030WL.

Function of this product has CIRCUIT BREAKER.

Manufacturers : GE Power Management

Image and pinout :

Some of the text within the PDF file :

Molded Case Circuit Breakers Section 3: Molded Case Circuit Breakers Molded Case Circuit Breakers – Features 3-2 Spectra RMS Circuit Breakers with MicroVersaTrip Plus Trip Units – Features .3-3 Molded Case Circuit Breakers – Quick Reference Guide .3-4 Miniature Circuit Breakers and Supplementary Protectors: Plug-in Circuit Breakers – 240V Class .3-5 Bolt-on Circuit Breakers – 240V Class...3-12 Bolt-on Circuit Breakers – 480/277V Class ...3-17 Cable-in Cable-out (lug-lug) – 240V Class 3-18 DIN-Rail Mount – 240V Class [ ... ]

THED136030WL PDF Datasheet Download