JR Freight Class ED500

Specifications
Configuration:;
• UIC	Bo-Bo
Gauge	1,067 mm (3 ft 6 in)
Wheel diameter	1,120 mm (3 ft 8 in)
Length	17,600 mm (57 ft 9 in)
Width	2,905 mm (9 ft 6.4 in)
Loco weight	67.2 t
Electric system/s	1,500 V DC / 20 kV AC
Current pickup(s)	Overhead catenary
Traction motors	AC

Type and origin
Power type	Electric
Builder	Hitachi
Build date	1992
Total produced	1

Class ED500
	ED500-901 at Shin-Tsurumi Depot, August 1992
Type and origin
Power type	Electric
Builder	Hitachi
Build date	1992
Total produced	1
Specifications
Configuration:;
• UIC	Bo-Bo
Gauge	1,067 mm (3 ft 6 in)
Wheel diameter	1,120 mm (3 ft 8 in)
Length	17,600 mm (57 ft 9 in)
Width	2,905 mm (9 ft 6.4 in)
Loco weight	67.2 t
Electric system/s	1,500 V DC / 20 kV AC
Current pickup(s)	Overhead catenary
Traction motors	AC
Performance figures
Maximum speed	120 km/h (75 mph)
Power output	4 MW (5,400 hp)
Tractive effort	28,367 kgf
Career
Operators	JR Freight
Numbers	ED500-901
Preserved	0
Disposition	Withdrawn and cut up

The Class ED500 was a single Bo-Bo wheel arrangement dual voltage AC/DC electric locomotive built experimentally by Hitachi in Japan in 1992.[1] The design was derived from the DC Bo-Bo-Bo wheel arrangement Class EF200 also built by Hitachi, and was intended to replace Class ED75 locomotives on Tohoku Main Line freight services. The locomotive was loaned to JR Freight for testing until 1994,[1] but the design was not selected for full production due to problems with restarting a single Bo-Bo wheel arrangement locomotive on the 25‰ gradients of the Tohoku Main Line and in the Seikan Tunnel.[2] The Class EH500 articulated Bo-Bo+Bo-Bo design was ultimately chosen instead.

External appearance

Visually resembling the EF200 locomotives, the ED500 was finished in all-over black with red cab doors.[2]

Classification

The ED500 classification for this locomotive type is explained below. As with previous locomotive designs, the prototype was numbered ED500-901.

E: Electric locomotive
D: Four driving axles
500: AC/DC locomotive with AC motors

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References

Jr機関車カタログ: Jr7社の現有30形式を詳しく解說 JR機関車カタログ [JR Locomotive Catalogue]. Japan: Ikaros Publications Ltd. 20 June 2013. p. 43. ISBN 9784863207271.
ＪＲ世代の機関車オールガイド [Comprehensive Guide to JR Era Locomotives]. Tetsudō Daiya Jōhō Magazine. 39 (315): 12–26. July 2010.

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[jrloco2013-1] Jr機関車カタログ: Jr7社の現有30形式を詳しく解說 JR機関車カタログ [JR Locomotive Catalogue]. Japan: Ikaros Publications Ltd. 20 June 2013. p. 43. ISBN 9784863207271.

[dj315-2] ＪＲ世代の機関車オールガイド [Comprehensive Guide to JR Era Locomotives]. Tetsudō Daiya Jōhō Magazine. 39 (315): 12–26. July 2010.