British Rail Class 506

British Rail Class 506 was a locomotive commissioned by British Rail in England. It was an electric multiple units powered AC locomotive featuring the TOPS system.

v t e Electric multiple units of Great Britain
AC units (300–399)	300 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 (I) 316 (II) 316 (III) 317 318 319 320 321 322 323 325 331 (I)¹ 331 (II) 332 333 334 341 342 345 350 (I)² 350 (II) 357 360 365 370 371 373 374 375 376 377 378 379 380 381 385 387 390 395 397
AC units DC units (700–899)	700 701 705³ 707 710 711 (I)³ 711 (II)⁴ 717 720 730 745 755⁵ 756⁵ 768⁵ 769⁵ 777 799⁵ 800⁵ 801 802⁵ 803 (I)⁶ 803 (II) 804⁷ 805⁵ 807 810⁵ 897
AC units (pre-TOPS)	AM1 AM2 AM3 AM4 AM5 AM6 AM7 AM8 AM9 AM10 AM11 LB&SCR CP LB&SCR CW LB&SCR SL MR Lancaster units
DC units (400–599)	401 402 403 404 405 410 411 412 413 414 415 416 418 419 420 421 422 423 424 427 430 431 432 438 442 444 445 446 447 450 455 456 457 458 460 465 466 471 480 482 (I) 482 (II) 483 484 485 486 487 488 489 499 (I) 501 502 503 504 505 506 507 508 510
DC units (original TOPS)	411 412 413 414 421 422 423 424 431 432 441 442 451 452 453 461 462 491 492
DC units (pre-TOPS)	LMS electric units LNER Tyneside units LNWR electric units LOR electric units LYR electric units Mersey Railway electric units MSJ&AR electric units NER electric units W&CR electric units
Battery units	BEMU 230⁵
Hydrogen units	600 614
Southern Railway designations	2-BIL 2-EPB 2-HAL 2-HAP 2-NOL 2-PAN 2-PEP 2-SAP 2-SL 2-TIS 2-WIM 3-CEP 3-CIG 3-COP 3-SUB 3-TC 3-TIS 4-BEP 4-BIG 4-BUF 4-CAP 4-CEP 4-CIG 4-COM 4-COR 4-DD 4-DES 4-EPB 4-GRI 4-JOP 4-LAV 4-PEP 4-PER 4-REP 4-RES 4-SUB 4-TC 4-TEP 4-VEC 4-VEG 4-VEP 4-VIP 4-VOP 5-BEL 5-DES 5-TCB 5-VEC 5-WES 6-CIT 6-PAN 6-PUL 6-REP 7-TC 8-DIG 8-GAT 8-MIG 8-VAB GLV MLV TLV
Miscellaneous units	398 399 499 (II) 555 599
Families	1959 design 1972 design Mark 2-derived Mark 3-derived A-Train APT Aventra Citylink Civity D-Train Desiro Electrostar FLIRT Coradia Juniper METRO Networker TGV Tube⁸ Velaro
Notes	1: Renumbered as Class 332 2: Renumbered as Class 325 3: Renumbered as Class 701 4: Renumbered as Class 720/6 5: Bi- or tri-mode unit 6: Renumbered as Class 802/2 7: Renumbered as Class 810 8: Grouping of different rolling stock types built to loading gauge of London Underground deep tube lines
British electric multiple units List of locomotives List of diesel multiple units List of electric multiple units List of departmental multiple units Rolling stock of Network SouthEast

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