A man was electrocuted at the Bellmore LIRR station yesterday after a robber threw him onto the third rail, officials said.

The suspect, 34-year-old Roosevelt resident Niheim Levy, allegedly exchanged words with the 49-year-old victim, whose name was not immediately released, before robbing him and pushing him to the tracks at 5 a.m.

Levy was booked on murder and robbery charges.

Investigators had initially suspected the victim suffered a seizure before toppling onto the tracks.

Nassau County police and MTA police worked the case together.

MTA Inspector Joseph Martelli commended both departments for the “expeditious arrest” of Levy.