The Moderus Gamma is an articulated tram manufactured in Biskupice, Poland, since 2016 by Modertrans Poznaà Â, a subsidiary of transport operator MPK Poznaà Â. Planning began in 2008 and the prototype was completed in 2016.
Multiple variants of the Gamma tram exist, are ordered or are under construction.
The Poznaà  tram cars are long, wide and have a power output of 400 kW. They are fitted with IGBT transistors. Five-section Gamma trams have a length of . The prototype was equipped with capacitors for storing the energy produced during regenerative braking.
The interior of the tram includes air conditioning, USB sockets and a passenger information system. The prototype has capacity for 244 passengers with 66 seats, including three folding seats. The uni-directional trams have a passenger capacity of 240 and the bi-directional sets have a passenger capacity of 233.
The tram was developed through a project called "Innovative City Tram," which was co-sponsored by the National Centre for Research and Development in Poland and the European Union. The prototype was finished in 2016 and presented at the manufacturer's factory in Poznaà  on 18 November 2016. In January 2017, MPK Poznaà  ordered 50 new Gamma trams: 30 uni-directional and 20 bi-directional sets. The prototype entered service in Poznaà  on 15 May 2017. Some Gamma LF02AC trams are stationed at the Franowo depot. Gamma trams are expected to replace second-hand German-built Type GT8 trams.
In October 2017, the Gamma tram began test runs on the Gdaà Âsk tram system.
In March 2018, a contract for the delivery of ten single-section trams was signed by Tramwaje à Âlàskie and Modertrans. These trams will be based on the Gamma design. The first tram was delivered in April 2020. According to Urban Transport Magazine, these trams are classified as Moderus Beta MF 10 AC.
Five-section Gamma trams are scheduled to be delivered to à Âódà º in 2022. 30 sets were ordered by à Âódà º MPK in late 2019.
Three single-car Gamma LF 10 AC BD trams were ordered for the Woltersdorf Tramway in 2022, the first of which was delivered in March 2024. Also, a fourth tram has been ordered through an option in the initial order.