The RABe 514 is a class of four-car double-decker electric multiple unit used by the Swiss Federal Railways (SBB) for the Zurich S-Bahn.

On 23 February 2003 the Swiss Federal Railways' board of directors decided to give the 447 million CHF contract for building 35 double decker trains to Siemens Transportation Systems.

To fulfill the domestic content requirement in the contract, Siemens reached an agreement with Stadler Rail to perform some of the assembling and the commissioning in their factory in Altenrhein, Switzerland.

[4] Because of the delayed delivery of the first trainsets, Siemens agreed to build an additional train instead of paying a penalty.

Compared to the Re 450-hauled bilevel coaches, the first generation trainsets known as DPZ, the RABe 514 feature a low-level entrance for level boarding, air conditioning and vacuum toilets (in a washroom suitable for the disabled).

It is common practice in Switzerland to name electric multiple units (e.g. RABe 501, RABDe 500) and locomotives (e.g. Ae 6/6, Re 6/6, Re 450, Re 460).

On 20 February 2015, unit № 514 046-2 was involved in a collision with an InterRegio express train hauled by Class 460 electric locomotive (№ 460 087) at Rafz.