Siemens Charger
IDTX No. 4601 and IDTX No. 4602 at the Denver Union Station.
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| Data refers to the following except where noted: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Type and origin | |
|---|---|
| Power type | Diesel-electric |
| Builder | Siemens Mobility |
| Order number | Amtrak State Corridor: 71 (192) Brightline: 10 (11) |
| Build date | 2016- |
| Specifications | |
|---|---|
| AAR wheel arr. | B-B |
| UIC class | Bo′Bo′ |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Trucks | Siemens model SF4 |
| Wheel diameter | 44 in (1,118 mm) |
| Minimum curve | 250 ft 0 in (76.20 m) |
| Wheelbase | 32 ft 6 in (9.91 m) (between truck centers) |
| Length | 71 ft 6 in (21.79 m) |
| Width | 10 ft 0 in (3.05 m) |
| Height | 12 ft 6 in (3.81 m) (roof) 14 ft 4 in (4.37 m) (roof shroud) |
| Axle load | 67,500 lb (30,617 kg) |
| Adhesive weight | 100% |
| Loco weight | 264,556 lb (120,001 kilograms) |
| Fuel type | Diesel |
| Fuel capacity | 1,800 US gal (6,800 l; 1,500 imp gal) (Standard) Larger tanks available up to 2,200 US gal (8,300 l; 1,800 imp gal) |
| Prime mover | Cummins QSK95 |
| RPM range | 600-1800 |
| Engine type | 45° V16, four stroke cycle |
| Aspiration | Turbocharged |
| Displacement | 95 liters (5,800 cu in) |
| Traction motors | Siemens AC Traction Motors |
| Cylinders | 16 |
| Cylinder size | 5.9375 liters (362.33 cu in) |
| Transmission | AC-DC-AC |
| MU working | Yes |
| Train heating | Locomotive-supplied head-end power; 1,000 kW (1,300 hp) 3-phase, 60 Hz, 480 VAC, 1000 kVA |
| Loco brake | Dynamic / Regenerative / Electropneumatic |
| Train brakes | Electropneumatic |
| Safety systems |
FRA standards ACSES II |
| Performance figures | |
|---|---|
| Maximum speed | 125 mph (201 km/h) |
| Power output |
At alternator: 4,400 hp (3,300 kW) Short-Time 4,200 hp (3,100 kW) Continuous At wheel (HEP dependent): ~4,000 hp (3,000 kW) to ~2,900 hp (2,200 kW) |
| Tractive effort |
Starting: 290 kN (65,000 lbf) |
| Factor of adh. | 4.07 (24.57%) |
| Career | |
|---|---|
| Operators | Amtrak, Brightline, MARC Train |
| Official name | Charger |
The Siemens SC-44 Charger is a diesel-electric passenger locomotive designed and manufactured by Siemens Mobility for the North American market. The first production unit was unveiled on March 26, 2016.
The SC-44 Charger locomotive is powered by a 4,400 hp (3,300 kW) Cummins 16 cylinder QSK95 4-stroke high speed diesel engine, which is designed to meet EPA Tier IV emissions standards that took effect in 2015. Top speed in service as per PRIIA specifications is 125 mph (201 km/h). The overall design and layout of the locomotive is shared heavily with its electric counterparts in Europe (the Vectron) and the United States (the ACS-64), diesel equipment aside. Power to the AC traction motors is delivered from the main alternator via four IGBT inverters (one per motor), with head-end power being supplied by a static inverter off of the main prime mover. The locomotive also features dynamic braking with regenerative capability, allowing the locomotive to divert power generated by dynamic braking away from the resistor grids to HEP and on-board locomotive auxiliary power demands.
In response to a 2013 RFI from Metro-North Railroad, Siemens indicated the possibility of producing a dual-mode variant of the Charger with onboard energy storage for use by Metro-North and Long Island Rail Road, as well as intercity service on Amtrak's Empire Corridor. These would supplement/replace the existing GE P32AC-DM locomotives, as well as the EMD DE30AC and DM30AC locomotives.
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