Siemens Charger

Specifications
Specifications
Configuration:;
• AAR	B-B
• UIC	Bo′Bo′
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Trucks	Siemens model SF4
Wheel diameter	49–46 in (1,250–1,160 mm) (new–worn)
Minimum curve	250 ft (76 m)
Wheelbase	9.8 ft (3 m) (per truck); 40.8 ft (12.436 m) (between truck centers);
Length	71.5 ft (21.793 m)
Width	10 ft (3.048 m)
Height	14.4 ft (4.39 m)
Axle load	67,500 lb (30,600 kg)
Adhesive weight	100%
Loco weight	260,000 lb (120,000 kg)
Fuel type	Diesel
Fuel capacity	SC-44/SCB-40: 1,800 US gal (6,800 L; 1,500 imp gal); ALC-42/SCV-42: 2,200 US gal (8,300 L; 1,800 imp gal);
Prime mover	Cummins QSK95
RPM range	600–1,800
Engine type	45° V16, four stroke cycle
Aspiration	Turbocharger
Displacement	95 liters (5,800 cu in)
Traction motors	Siemens 3-phase AC induction motors; 978 hp (729 kW) each
Head end power	660 or 1,000 kW; 3φ, 60 Hz, 480 V AC
Cylinders	16
Cylinder size	5.9375 liters (362.33 cu in)
Transmission	AC–DC–AC
Loco brake	Dynamic, regenerative, electropneumatic
Train brakes	Electropneumatic
Safety systems	Positive train control: ACSES II, I-ETMS

Type and origin
Type and origin
Power type	Diesel–electric or dual-mode
Builder	Siemens Mobility
Model	ALC-42; ALC-42E; SC-44; SCB-40; SCV-42; SC-42DM;
Build date	2016–present
Total produced	460 (includes units on order; see Customers section for details)

Siemens Charger
Siemens Charger
	#2102, a Caltrans-owned SC-44, operating on the Amtrak Capitol Corridor
Power type
Type and origin
Power type	Diesel–electric or dual-mode
Builder	Siemens Mobility
Model	ALC-42; ALC-42E; SC-44; SCB-40; SCV-42; SC-42DM;
Build date	2016–present
Total produced	460 (includes units on order; see Customers section for details)
Configuration:;
Specifications
Configuration:;
• AAR	B-B
• UIC	Bo′Bo′
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Trucks	Siemens model SF4
Wheel diameter	49–46 in (1,250–1,160 mm) (new–worn)
Minimum curve	250 ft (76 m)
Wheelbase	9.8 ft (3 m) (per truck); 40.8 ft (12.436 m) (between truck centers);
Length	71.5 ft (21.793 m)
Width	10 ft (3.048 m)
Height	14.4 ft (4.39 m)
Axle load	67,500 lb (30,600 kg)
Adhesive weight	100%
Loco weight	260,000 lb (120,000 kg)
Fuel type	Diesel
Fuel capacity	SC-44/SCB-40: 1,800 US gal (6,800 L; 1,500 imp gal); ALC-42/SCV-42: 2,200 US gal (8,300 L; 1,800 imp gal);
Prime mover	Cummins QSK95
RPM range	600–1,800
Engine type	45° V16, four stroke cycle
Aspiration	Turbocharger
Displacement	95 liters (5,800 cu in)
Traction motors	Siemens 3-phase AC induction motors; 978 hp (729 kW) each
Head end power	660 or 1,000 kW; 3φ, 60 Hz, 480 V AC
Cylinders	16
Cylinder size	5.9375 liters (362.33 cu in)
Transmission	AC–DC–AC
Loco brake	Dynamic, regenerative, electropneumatic
Train brakes	Electropneumatic
Safety systems	Positive train control: ACSES II, I-ETMS
Maximum speed
Performance figures
Maximum speed	125 mph (200 km/h)
Power output	SC-42DM (3rd Rail): 2,100 hp (1,600 kW); SCB-40: 4,000 hp (3,000 kW); ALC-42/SCV-42/SC-42DM (Diesel): 4,200 hp (3,100 kW); SC-44: 4,400 hp (3,300 kW);
Tractive effort	Starting (Diesel): 290 kN (65,000 lbf); Continuous (Diesel): 275 kN (62,000 lbf) @ 16 mph (25 km/h); Starting (3rd Rail): 250 kN (56,000 lbf) to 12.5 mph (20 km/h);
Factor of adh.	4.07 (24.57%)
	Data refers to the following except where noted:

The Siemens Charger is a family of diesel-electric/dual-mode passenger locomotives designed and manufactured by Siemens Mobility for the North American market.

There are five variants of the Charger, tailored for different operators and types of service: ALC-42 for Amtrak long-distance service, ALC-42E dual mode for Amtrak inter-city and long-distance routes that serve the Northeast Corridor, SC-44 for Amtrak state-supported inter-city service or commuter rail operators, SCB-40 for Brightline inter-city service and SCV-42 for VIA Rail inter-city service in Canada.

The first production Charger, an SC-44, was unveiled on March 26, 2016, and entered revenue service on August 24, 2017. It was followed by the SCB-40, which inaugurated Brightline service on January 13, 2018. The first ALC-42 was delivered to Amtrak on June 17, 2021, and entered revenue service on February 8, 2022, on the Empire Builder.

The Charger is often paired with Venture passenger cars, also built by Siemens, as part of a trainset.