It happened around 5:40 p.m. Friday on the northbound tracks near Wyoming Avenue.
All service between the Erie and Fern Rock stops was affected, but has since been restored.
The victim, described as a man in his 30's, was transported to Albert Einstein Medical Center. Details pertaining to his injuries have not been released, but officials do say that he is expected to survive.
It is not clear how the man became stuck under the train car.
