| Pennsylvania Railroad E2b | |
| Powertype: | Electric |
| Builder: | General Electric |
| Builddate: | 1952 |
| Totalproduction: | 6 |
| Aarwheels: | B-B |
| Uicclass: | Bo'Bo' |
| Electricsystem: | 11 kV, 25 Hz AC |
| Collectionmethod: | Pantograph |
| Transmission: | AC current fed via transformer tap changers to AC traction motors. |
| Poweroutput: | 2500hp |
| Tractiveeffort: | 35400lbf |
| Maxspeed: | 65 MPH |
| Operator: | Pennsylvania Railroad |
| Operatorclass: | E2b |
| Fleetnumbers: | 4939–4944 |
| Scrapdate: | 1964 |
Pennsylvania Railroad class E2b comprised six experimental B-B electric locomotives built for the railroad by General Electric.
In 1952 the Pennsylvania Railroad took delivery of eight experimental locomotives:
GE built two demonstrators to show the Great Northern Railway. These two were sold to the PRR in March 1953 and numbered .
The class E2b locomotives were commonly used in three pairs. Like most previous PRR electric locomotives, they were straight AC-powered, and did not use rectifiers. Because of this, they could work in multiple with existing PRR locomotives, and generally did so with class P5a.
The locomotives were scrapped in 1964.