Three locomotives, DeKi 301 to 303, were built in 1967.[1] The design was broadly based on the earlier Class DeKi 200 locomotives, with four 230 kW traction motors, although the non-standard bogie design of the DeKi 200 was not used.[1] The cab window sun visors of the DeKi 200 were also discontinued on the DeKi 300.[1]