Class 150/1
After the success of the prototype, a batch of 50 2 car production units (150101—150150) were ordered for British Rail. These differed slightly from the prototypes and did not have the middle coach. They were first based around Birmingham and Manchester on commuter services. Today, these units are based around Manchester, Leeds and London. While the prototype had end sliding doors, the 150/1 has a slam –shut door instead, other than that, they are nearly identical.