FS class E.620

Type and origin
Power type	Electric
Builder	Officine Reggiane
Build date	1925
Total produced	5

Specifications
Configuration:
• AAR	C+C
• UIC	Co'+Co'
Gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Wheel diameter	1,050 mm (41.34 in)
Length	11.77 m (38 ft 7+3⁄8 in)
Loco weight	54 t (53.1 long tons; 59.5 short tons)
Electric system/s	650 V DC third rail
Traction motors	6

Performance figures
Maximum speed	85 km/h (53 mph)
Power output	950 kW (1,270 hp) continuous

Career
Operators	Ferrovie dello Stato Italiane

The FS Class E.620 was a class of third-rail electric locomotives built by Officine Meccaniche Reggiane for the Italian State Railways (FS). They were built in 1925 using motors and electrical equipment from Class E.10^[it] railcars which had been withdrawn in 1923. After World War II they were converted to 3,000 volt DC operation and became FS Class E.621.

They were equipped with six nose-suspended direct current traction motors with a total output of 950 kW (1,270 hp). This power was transferred to the axles via a geared final drive and through this they had a maximum speed of 85 km/h (53 mph). They received power from a 650 V DC third rail system, with the traction current being picked up by contact shoes.

Nuovi locomotori per la linea Milano-Varese-Porto Ceresio, in "Rivista tecnica delle ferrovie italiane", anno XV, vol. XXIX, n. 1 (15 gennaio 1926), pp. 1–3.
Giovanni Cornolò, Locomotive elettriche FS, Parma, Ermanno Albertelli Editore, 1983, pp. 43-45.
Stefano Garzaro, Locomotive elettriche FS, editrice Elledi, 1986.
Giovanni Cornolò Claudio Pedrazzini, Locomotive elettriche FS, Parma, Ermanno Albertelli Editore, 1983.

Classes of Ferrovie dello Stato Italiane locomotives

Steam

Tender locomotives	100 102 103 110^I 110^II 111 112 113 114 116 117 118 119^I 119^II 120 121 122 136 139 140 150 155 158 160 161 162 163 164 170 180 181^I 181^II 182^I 182^II 183 185 186 187 190 193 194 195 196 197 198 200 201 206 207 208 209 211 212 215 216 217 218 219 220 221 222 223 224 255 260 261 262 265 268 269 270 271 272 290 291 292 293 310 320 380 385 388 390 391 394 395 396 397 400 410 420 421 422 423 424 425 450 451 452 453 454 455 460 470 471 472 473 474 475 476 477 478 479 480 482 499^I 499^II 500 510 512 513 530 540^I 540^II 542 543 545 550 552 553 554 555 556 560 600 601 603 604 605 606 607 623 625 626 630 640^I 640^II 645 650 652 653 656 660 666 670 671 672 675 676 677 680 681 682 683^I 683^II 685 686 687 688 690^I 690^II 691 720 728 729 730 731 735 736 737 740 741^I 741^II 743^I 743^II 744 745 746 747^I 747^II 750
Tank locomotives	800^I 800^II 801 802^I 802^II 803^I 803^II 804 805 806 809 810^I 810^II 811 812 813 814 815^I 815^II 815^III 816 817 818 819 820^I 820^II 821^I 821^II 822 823 824 825 826^I 826^II 827 828^I 828^II 828^III 829 830^I 830^II 831 835 842 848 849 850^I 850^II 851 870 871 874^I 874^II 875 876 877 880^I 880^II 881 882 885 893 894 895 896^I 896^II 897 898 899^I 899^II 900 902 904 905 906 910 912 915 940 950 980 981 999
Narrow gauge locomotives	R.201 R.202 R.300 R.301 R.302 R.305 R.306 R.310 R.370 R.401 R.402 R.410 R.440 R.441 R.442 R.443 R.600 P U

Electric

Rechargeable battery	E.421
650 V DC Third rail	E.220 E.320 E.321 E.420 E.620
3,6 kV AC Three-Phase	E.330 E.331 E.332 E.333 E.360 E.380 E.390 E.430 E.431 E.432 E.550 E.551 E.552 E.554
10,6 kV AC Three-Phase	E.470 E.471 E.472 E.570
3 kV DC	E.321 E.322 E.323 E.324 E.326 E.400 E.402A E.402B E.403 E.404 E.405 E.412 E.414 E.424 E.428 E.434 E.444 E.444R E.447 E.453 E.454 E.464 E.621 E.625 E.626 E.632 E.633 E.636 E.640 E.645 E.646 E.652 E.655 E.656
25 kV AC	E.491 E.492

Diesel

Light shunters	206 207 208^I 208^II 209 210 211 R.212 213^I 213^II 214 215 216 218^I
Shunters	218^II 225 234 235 236 245 250 255
Heavy shunters	Ne 120 D.141 RD.142 D.143 D.145 D.146 D.147 356 372 Ne 700
Train locomotives	D.341 D.342 D.343 D.345 D.442 D.443 D.445 D.449 D.461

References

Further reading