What kinds of electric multiple units does IR operate?
Note: For information on the suburban / metro systems in different cities, please see the metro section. This section is concerned specifically with the features of the EMU/DMU cars used on such systems. IR has electric multiple units in operation in several suburban sections (Mumbai, Chennai, Calcutta, Bandel-Katwa, etc.). The Mumbai region with 1.5kV DC traction has several models of EMUs, classified from WCU-1 through WCU-15 (and beyond??). Most models have DC traction motors with rheostatic control (resistance banks to vary the input power supply). DC EMUs are also used on the Lonavala-Pune section. EMUs for the 25kV AC sections have classifications WAU-1 through WAU-4 (and beyond??), as well as some MG units classified in the YAU series. Most of these were built with a rated top speed of 100km/h, although CR limits them to 80km/h in Mumbai, and WR limits them to 70km/h in some sections. ICF has been building about 20 9-car AC EMU rakes for Mumbai’s system each year; production is
