EA203 series
| Company type | Electric multiple unit (EMU) |
|---|---|
| Industry | Rail transport |
| Founded | August 2017 |
| Founder | PT Industri Kereta Api, Bombardier Transportation |
| Headquarters | Madiun, Indonesia , Indonesia |
Area served | Jakarta, Tangerang (Soekarno–Hatta Airport Rail Link) |
| Products | Electric multiple unit trains |
| Parent | PT Railink (joint venture of PT Kereta Api Indonesia and PT Angkasa Pura II) |
The EA203 series represents an electric multiple unit (EMU) crafted through a collaboration between PT Industri Kereta Api and Bombardier Transportation. This train model operates solely on the Soekarno–Hatta Airport Rail Link, providing a direct connection from Manggarai railway station in Jakarta to Soekarno–Hatta International Airport located in Tangerang, Banten.
Acquired by PT Railink—a joint enterprise formed by PT Kereta Api Indonesia and PT Angkasa Pura II—the procurement includes 60 individual cars configured into 10 sets of six-car train formations. Deliveries commenced in August 2017, with units transported from the Madiun manufacturing facility to Jakarta to support both the inauguration and ongoing function of the airport rail service.
Exterior design
The EA203 series boasts an aerodynamic profile reminiscent of high-speed express trains, featuring a white exterior embellished with orange and blue stripes that symbolize the branding of Railink and Kereta Api Indonesia (KAI). The train’s windows are bordered in black, contributing to a refined and premium aesthetic comparable to KAI’s most recent executive-class trains. Each cab is equipped with three LED matrix displays that present route information; additionally, two more displays are installed on the central car to indicate destinations.
Inside, the cabin is predominantly white and furnished with synthetic leather seats in shades of gray and dark gray. Seating arrangements are fixed, mirroring those found in contemporary Indonesian economy trains: seats numbered 1 through 5 face forward along the train’s travel direction, while seats 6 through 10 face backward. Dedicated sideways seating for passengers with disabilities utilizes identical upholstery materials. Amenities include overhead luggage racks, seated restrooms, and four television screens positioned at both ends of the seating sections to provide passenger entertainment.
Technical specifications
The propulsion system of the EA203 series incorporates Bombardier Transportation’s state-of-the-art IGBT–VVVF MITRAC traction technology. A Train Information Monitoring System (TIMS) is integrated, consistent with other INKA-produced AC EMUs. The train rides on air-spring bolsterless bogies—specifically TB-914 models under driver cabins and MB-514 under intermediate cars—which are advancements derived from the EA201 series and Inka-Hitachi EMUs. These bogies share design similarities with Japanese bogie types such as TR235D/TR241B/TR246E and DT50D used on 203 and 205 series EMUs. This configuration reduces vibrations and enhances ride comfort. Furthermore, noise insulation is improved by accordion-style gangway connectors akin to those employed on former Japanese EMUs operated by Kereta Commuter Indonesia.
Train formations
| Car designation | ||||||
| Position | 1 (TC) | 2 (M1) | 3 (M2) | 4 (M1) | 5 (M2) | 6 (TC) |
|---|---|---|---|---|---|---|
| TS1 | K1 1 17 07 | K1 1 17 08 | K1 1 17 09 | K1 1 17 10 | K1 1 17 11 | K1 1 17 12 |
| TS2 | K1 1 17 13 | K1 1 17 14 | K1 1 17 15 | K1 1 17 16 | K1 1 17 17 | K1 1 17 18 |
| TS3 | K1 1 17 19 | K1 1 17 20 | K1 1 17 21 | K1 1 17 22 | K1 1 17 23 | K1 1 17 24 |
| TS4 | K1 1 17 25 | K1 1 17 26 | K1 1 17 27 | K1 1 17 28 | K1 1 17 29 | K1 (removed TS4-30 for brevity) |
| TS5 to TS10 | (details omitted for conciseness) | |||||