CP Class 2550

CP Class 2550
Two Série 2550 locomotives hauling a freight train
Type and origin Power type Electric Builder Groupement d'Étude d'Électrification Monophasé 50 Hz Henschel Alstom Sorefame Build date 1963–1964 Total produced 20
Specifications Configuration: ​  • Whyte Bo-Bo  • UIC Bo′Bo′ Gauge 1,668 mm (5 ft 5+21⁄32 in) Iberian gauge Wheel diameter 1,300 mm (51 in) Length 15.38 m (50 ft 5.5 in) Width 3.00 m (9 ft 10.1 in) Height 4.45 m (14 ft 7.2 in) Loco weight 72.0 t (70.9 long tons; 79.4 short tons) Electric system/s 25 kV 50 Hz AC Catenary [[Current collector|Current pickupTemplate:Pluralize from text]] Pantograph Traction motors 709 hp (529 kW) Alstom TAO-645 A1, 4 off Train heating None Loco brake Air Train brakes Air Safety systems Convel
Performance figures Maximum speed 120 km/h (75 mph) Power output 2,790 hp (2,080 kW) Tractive effort 191 kN (43,000 lbf)
Career Operators Comboios de Portugal Numbers 2551-2570 Retired 2009 Disposition 1 preserved, 19 scrapped

The Série 2550 were the second batch of 25 kV electric locomotives built for Portuguese Railways (CP). They entered service in 1964 and were used on the main line between Lisbon and Porto. Twenty locomotives were built with all withdrawn by 2012. Unlike the earlier Série 2500, the Série 2550 were built with unpainted stainless steel bodywork. They were built by Sorefame, with components from Alstom.

The Série 4700 were built in 2007-2009 as a replacement for the Série 2550.

References

Type ↓	diesel / gasoline / gas				steam: coal / oil	electric (IP: 25 kV / 50 kHz or (*) 1500 V; other networks q.v.)				← Traction
Status →	in service		withdrawn (or used occasionally)					in service		Gauge ↓
IP network (Note: In italic, classes shared by CP and other companies, simult. or not; in underlined italic, classes used exclusively by other companies.)
multiple units	"592"	refurbished		M1 0050 0100 0500 0750 0600 0650	1001 Z1	2000 2050 2080 ABm1-18→	refurbished		2300 2400 3400 3500 4000	1668 mm (iberian)
		VIP⎱ 0350⎰ 0450←	←0300 ←0400				2100⎫  2150⎬  2200⎭  ⎰*3100→ ⎱*3200→	→2240 →3150* →3250*
	9630	9500←	←9700─╮ 9400←╯	ME1 ME21 9050 9100 9300 9600		(Vale do Lima)		(there is currently no electric traction on IP's metre gauge)		1000 mm (metre)
locomotives			9000 9020 Lydya		E1 E21 E31 E41 E51 E61 E71 E81 E91 E101 E111 E121 E131 E141 E151 E161 E181 E201 1-2
	1200 1400 1500 1520 1900 1930 6000		1300 1320 1550 1800 1960		D. Luiz S. Inauguração 001 01 1 09 011 17 021 21 031 32 41 041 41 070 71 81 91 101 103 110 141 151 175 181 0151 0181 0201 201 211 221 261 281 291 301 351 401 501 551 601 701 751 801 831 851 951 2068 01002 1008 2000 02012 02049 2133 51 (BA) 11 (CFE)	2500 2550 3300*		2600 2620 4700 5600		1668 mm (iberian)
shunters	1150		1000 1020 1050 1100		005
Local networks (excl. funiculars and cable cars)
trams						[[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]]		[[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]] [[Trams in Porto|Template:Encodefirst]]		1435 mm (standard)
metro						ML7 ML79		ML90 ML95 ML97 ML99
light rail, articulated								MP000 MP100 C000
								[[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]]		900 mm
trams					[[Transportes_Urbanos_de_Braga|Template:Encodefirst]]	[[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams in Braga|Template:Encodefirst]]		[[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]] [[Trams_in_Lisbon#Rolling_stock|Template:Encodefirst]]
			(PdV-VdC)		(CCFTNA) (CFPLER)	[[Trams in Coimbra|Template:Encodefirst]] [[Trams in Coimbra|Template:Encodefirst]] [[Trams in Coimbra|Template:Encodefirst]]		(CSA)		1000 mm (metre)
locomotives	(CSA23074)				(Pomarão)
	(Transpraia) (P.d'El-Rei)				(Mira) (CFPL)					600 mm
					([[Linha do Porto da Horta|Template:Encodefirst]]) [[Linha do Porto de Ponta Delgada|N0(Template:Encodefirst)]]					2140 mm
Status →	in service		withdrawn					in service		Gauge ↑
Type ↑	diesel / gasoline / gas				steam: coal / oil	electric				← Traction