| WAG-9 |
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CLW made WAG-9HC #38447 at Dankuni yard. |
| Type and origin |
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| Power type | Electric |
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| Builder |
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| Build date | 1995–present |
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| Total produced | 6296 as of June 2025 |
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| Specifications |
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Configuration:
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| • UIC | Co′Co′ |
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| Gauge | 5 ft 6 in (1,676 mm) |
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| Bogies | Adtranz Fabricated Flexicoil IV |
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| Wheel diameter | New: 1,092 mm (3 ft 7 in),
Half worn: 1,054 mm (3 ft 5+1⁄2 in)
Full worn: 1,016 mm (3 ft 4 in) |
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| Wheelbase | 15.7 m (51 ft 6 in) |
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| Length | 20.562 m (67 ft 5+1⁄2 in) |
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| Width | 3.152 m (10 ft 4+1⁄8 in) |
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| Height | 4.525 m (14 ft 10+1⁄8 in) |
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| Axle load | WAG-9 : 20.5 tonnes (20.2 long tons; 22.6 short tons)
WAG-9H/Hi/9i : 22.0 tonnes (21.7 long tons; 24.3 short tons) |
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| Loco weight | WAG-9 : 123 tonnes (121 long tons; 136 short tons)
WAG-9H/9Hi/9i/9HH : 132 tonnes (130 long tons; 146 short tons)
WAG-9TWIN/EF12K:
264 tonnes (260 long tons; 291 short tons) |
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| Electric system/s | 25 kV 50 Hz AC Overhead |
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| Current pickup(s) | dual pantographs |
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| Traction motors | WAG-9/9H/9i : Adtranz 6FRA6068 |
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| Gear ratio | 1 : 5.133 |
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| MU working | 2 |
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| Loco brake | Air and Regenerative |
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| Train brakes | Air |
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| Safety systems | Slip/slide control, Main overload relay, Over voltage relay, No volt protection, Vigilance Control Device, Fire Detection Equipment, Fire Extinguishers and Earth fault relay |
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| Performance figures |
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| Maximum speed | 100 km/h (62 mph) |
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| Power output | WAG-9 Original : 6,120 hp (4,564 kW)
WAG-9HC : 6,120 hp (4,564 kW)
WAG-9HH/EF9K : 9,000 hp (6,711 kW)
WAG-9TWIN/EF12K : 12,000 hp (8,948 kW) |
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| Tractive effort | WAG-9 Starting Effort : 475 kN (107,000 lbf)
WAG-9H/HH Starting Effort : 510 kN (110,000 lbf)
WAG-9TWIN Starting Effort:1,040 kN (230,000 lbf) |
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| Career |
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| Operators | Indian Railways |
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| Numbers | Starting from
- 31000-31999, 32000-32999, 33000-33999, 38000-38999, 42300+, 51001+ & 65001+(A & B unit) CLW
- 34001-34127 BHEL
- 41000-41500, 43000-43999 & 44000+ BLW
- 41501-41999 & 42000+ PLW
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| Locale | All Over India |
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| Disposition | Active |
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The Indian locomotive class WAG-9 is a class of 25 kV AC electric locomotives that was developed in 1995 by ABB for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G), 9th generation (9) locomotive. They entered service in 1996. A total of 5140 WAG-9 have been built at Chittaranjan Locomotive Works (CLW), with more units being built at Banaras Locomotive Works (BLW), Bharat Heavy Electricals Limited (BHEL) and Patiala Locomotive Works (PLW). It was the most powerful freight locomotive in the Indian Railways fleet until the introduction of the WAG-12.
The WAG-9 class was built to haul freight trains. A passenger variant of the WAG-9 was developed, the WAP-7, with a modified gear ratio to pull lighter loads at higher speeds. EF9K, previously known as WAG-9HH which has a power of 9,000hp has been developed. EF12K, a new evolution of WAG-9 locomotive has been developed with 12,000 hp.
