Indian locomotive class WAG-4

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WAG-4
WAG-4 20937 at Mathura Junction railway station
Type and origin Power type Electric Builder CLW Build date 1967–1969 Total produced 186
Specifications Configuration: ​  • AAR B-B  • UIC B-B Gauge 5 ft 6 in (1,676 mm) Bogies Monomotor B-B bogies Wheel diameter New: 1,140 mm (3 ft 9 in) Half worn: 1,120 mm (3 ft 8 in) Full worn: 1,064 mm (3 ft 6 in) Length 14.600 m (47 ft 10+13⁄16 in) Width 3.109 m (10 ft 2+13⁄32 in) Height 4.165 m (13 ft 7+31⁄32 in) Axle load 18,640 kg (41,090 lb) Loco weight 74,000 kg (163,000 lb) Electric system/s 25 kV 50 Hz AC Overhead Current pickup(s) Pantograph Traction motors Siemens/ACEC/Alstom MG 710A (740hp, 1250V, 480A, 1000 rpm). Fully suspended, force-ventilated. Loco brake Air Train brakes Vacuum
Performance figures Maximum speed 112 km/h (70 mph) Power output 2,930 hp (2,185 kW) Tractive effort: ​  • Starting 25,000 kgf (250 kN; 55,000 lbf)
Career Operators Indian Railways Numbers 20700-20709 (Niv. / SFAC) 20710-20791 (CLW) 20849-20868 (Niv. / SFAC) Locale All over India Disposition Retired

The Indian locomotive class WAG-4 is a class of 25 kV AC electric locomotives that was manufactured by CLW in the late 1960s for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G) engine, 1st (1). A total of 186 WAG-4 locomotives were built by The European Group 50 Hz Group/European Group/50 Cycles Group (consortium) between 1967 and 1969. They entered service in 1967.^[1]

The WAG-4 served both passenger and freight trains for over 40 years. As of January 2020, after removal from service, all but one were scrapped.^{[citation needed]}