JNR Class EF63

Class EF63
A pair of EF63s leading a 489 series EMU on a Hakusan service in June 1997
Type and origin Power type Electric Builder Kawasaki, Mitsubishi and Tōshiba Build date 1962–1976
Specifications Configuration: ​  • UIC Bo-Bo-Bo Gauge 1,067 mm (3 ft 6 in) Wheel diameter 1,120 mm (44.09 in) Length 18,050 mm (59 ft 2+5⁄8 in) Width 2,800 mm (9 ft 2+1⁄4 in) Height 4,060 mm (13 ft 3+7⁄8 in) Loco weight 108 t (106 long tons; 119 short tons) Electric system/s 1,500 V DC overhead lines Current pickup Pantograph Traction motors DC
Performance figures Maximum speed 100 km/h (62 mph) Power output 2.55 MW (3,420 hp) Tractive effort 23,400 kgf (229,476 N; 51,588 lbf)
Career Operators JNR, JR East, JR Freight Number in class 25 First run 1 October 1963 Withdrawn 30 September 1997 Disposition All withdrawn

The Class EF63 (EF63形) is a class of 1,500 V DC electric locomotives formerly operating in Japan.