KHŽ Class 440

Kráľovské Holynské Železnice Class 440
A KHZ Class 440 locomotive
Type and origin Power type Electric Builder HLZ Build date 1990-1996 Total produced 352
Specifications Configuration: ​  • UIC Co'Co' Gauge 1435 mm Driver dia. 1250 mm (new) resp. 1160 mm (worn) Minimum curve 140 m Pivot centres 11 290 mm Length: ​  • Over beams 19 500 mm Width 03100 mm Height 04650 mm (Lowered pantograph) Axle load 020,0 t Electric system/s 25 kV 50 Hz AC Current pickup(s) Overhead lines Traction motors 6 × VEM Sachsenwerk ECFB 1110-127C Loco brake Air brake and electric resistance brake
Performance figures Maximum speed 125 km/h Power output: ​  • 1 hour 5880 kW  • Continuous 5580 kW Tractive effort: ​  • Starting 361 kN
Career Class KHŽ Class 440 First run 1990 Last run Still in active service

The KHŽ Class 440 is a powerful electric locomotive introduced in the early 1990s by Holynian State Railways (HSZ). Designed for heavy freight operations and capable of handling passenger services, the Class 440 was intended to supplement existing electric locomotives. 500 were planned to be built. However, its production run was cut short due to economic and political changes during the period, resulting in only 300 units being built.

Design

The Class 440 locomotive features a six-axle configuration (Co'Co') for heavy loads and mountainous terrain. The Class 440 has a maximum speed of 140 km/h and a continuous power output of 6,400 kW, making it one of the most advanced locomotives in Holynia at the time.

History

Production of the Class 440 began in 1991 at the Holyn Locomotive Works (HLW). While initially projected to have a large production run, economic restructuring and shifting political priorities in the early 1990s led to the program's premature end in 1995, with only 300 units completed.

Despite its limited numbers, the Class 440 was quickly integrated into Holynia’s rail operations, excelling in heavy freight corridors and select passenger services. Its high power output and modern features made it particularly effective on long-haul routes and steep grades. Operational History and Modernization

The Class 440 has remained a vital part of KHZ’s fleet thanks to its reliability and performance. Although newer models have replaced the Class 440 on some key routes, a significant portion of the fleet remains active, primarily in freight operations.

Despite its curtailed production run, the Holyn Class 440 is regarded as a milestone in Holynian locomotive design. Its advanced features and reliable performance have ensured its enduring presence on the rails, and it is remembered as a symbol of innovation during a transitional era in Holynia’s rail history.