Indian locomotive class WCM-4 A WCM-4 at Bombay Victoria Electric loco trip Shed
Type and origin Power type Electric Designer Hitachi Builder Hitachi Order number 59/459/1/RS(F) Model EM4 Build date 18 April 1959 Total produced 7
Specifications Configuration: • AAR C-C • UIC Co′Co′ • Commonwealth Co-Co Gauge 5 ft 6 in 1,676 mm )Bogies 3 Axle fabricated frame, Swing bolster with Equalizer beams Wheel diameter New:1,220 mm (4 ft 0 in),10+ 1 ⁄2 in) and Wheelbase 2,380 mm (7 ft 10 in) Length: • Over couplers 7+ 3 ⁄8 in) • Body 3+ 7 ⁄16 in)Width 1 ⁄16 Height 9 ⁄16 Frame type 3 Axle fabricated frame Axle load 20.83 tonnes (20.50 long tons; 22.96 short tons) Loco weight 125.00 tonnes (123.03 long tons; 137.79 short tons) Sandbox cap. 16 sandboxes each Power supply 110 V DC Electric system/s 1.5 kV DC Overhead Current pickup(s) pantograph Traction motors HS-373-BR • Rating 1 hour 765A • Continuous 620A Gear ratio 16:73 MU working Not possible Loco brake Air /Hand , Regenerative braking Train brakes Vacuum Compressor 7kg/cm² Safety systems Slip control, Over voltage relay, No volt relay, Low pressure governor, Vacuum governor Train parting alarms, and Brake cylinder cutoff valve
Performance figures Maximum speed 120.5 km/h (75 mph) Power output: • Starting Max:4,000 hp (2,980 kW) • 1 hour Max:4,000 hp (2,980 kW) • Continuous Max:3,290 hp (2,450 kW) Tractive effort : • Starting 31,250 kgf (310 kN) • 1 hour 25,300 kgf (250 kN) • Continuous 18,700 kgf (180 kN) Factor of adh. 0.25
Career Operators Indian Railways Class EM/4 Numbers 20076-20082 Locale Central Railways Delivered 1960 First run 1961 Last run January 2000 Retired Early 2000s Withdrawn Early 2000s Preserved none Disposition All have been scrapped.
