SZU locomotives and shunters

  Class NVR Number Axle Formula Number Year in Service Power [kW] Tractive Effort [kN] Max.Speed [km/h] Traction Type Voltage 1st class 2nd class
Re 456 91 85 4456 101
Bo'Bo' 6 1987 3200
130 E 15kV 16.7Hz --- ---
Modern universal locomotives, nrs. 542-547 (+2x bought from SOB in 2021 for spare parts, nrs. 091/092)
Re 456 91 85 4450 067
Bo'Bo' 2 1993 3200 240 130 E 15kV 16.7Hz --- ---
Locomotives for push-pull double deck trains, second-hand SBB class Re 450 (nrs. 067/070), nrs. 551/552
Tm 336 98 85 5336 508
C 1 1994 320
80 DM Diesel --- ---
New departmental car/locomotive from Robel with 7 seats, nr. 508
Tm 236 98 85 5233 911
B 1
1958 390
92 30 DE Diesel --- ---
Second-hand tractor bought from SBB in 2014 (modernised in 1999), was SBB Tm 233 911 (former MThB Tm 236 653), nr. 911

99 85 9352 003
C 1 2025



ED
15kV+Diesel
--- ---
Dual mode track maintenance railcar from Plasser&Theurer, type MultiCrafter 12.5 E3 C/I

SZU electric trainsets and motor cars

  Class NVR Number Axle Formula Number Year in Service Power [kW] Tractive Effort [kN] Max.Speed [km/h] Traction Type Voltage 1st class 2nd class
Be 556 94 85 7556 511
EMU-3 6
2013
1400
160
120
E 1200V=+15kV 0 123
New dual-voltage trainsets "Be 510" from Stadler, mainly intended for Uetliberg line, nrs. 511-516
Be 556 94 85 7556 571
EMU-3 5
2022
1400
160
120
E 1200V=+15kV 0 143
New dual-voltage trainsets "Be 570" from Stadler, replaced nrs. 521-528 after re-electrification, nrs. 571-575

SZU ordered trainsets

  Class NVR Number Axle Formula Number Year in Service Power [kW] Tractive Effort [kN] Max.Speed [km/h] Traction Type Voltage 1st class 2nd class
RBe 546
94 85 7546 000
EMU-3 17
2028
200 160 E 15kV 16.7Hz 0
140
New trainsets from Stadler "RBe 560", similar to SBB RABe 531 "Evo", to replace locomotives and double-deck coaches on S4

SZU withdrawn classes

  Class NVR Number Axle Formula Number Year in Service Power [kW] Tractive Effort [kN] Max.Speed [km/h] Traction Type Voltage 1st class 2nd class
De 016
Bo'A1' 1 1925 495
50 E 15kV 16.7Hz --- ---
Historic freight locomotive, rebuilt from De 3/3 in 1931, nr. 541 (now ZMB De 3/4 "Sihltal Krokodil", not operational)
Ce 4/4
B'B' 1 1954 736 108 65 E 15kV 16.7Hz --- ---
Second-hand locomotive, bought from BLS, nr. 42
De 4/4
EMU-1 1 1927 820 86 85 E 15kV 16.7Hz 0 0
Second-hand electric luggage motor car, modernised by SBB in 1966-1970, nr. 51
Em 836
C 1 1962 440
65 DE Diesel --- ---
Diesel shunter nr. 506
Tm 236
Bo 1 1961 240
55 DE Diesel --- ---
Small workshop shunter nr. 507, same as BDWM class Em2/2 (withdrawn 2014, now ZMB Em 2/2 nr. 7)
Tm 236
B 1 1949 35
45 DM Diesel --- ---
Historic second-hand small shunter nr. 10 (236 510), was SBB Tm 536 (now ZMB Tm 2/2 nr. 10)
Ce 026
EMU-1 1 1923 145
35 E 1200V= 0 24
Historic Uetliberg line EMU, nr. 502 (Ce2/2 nr. 2) (on loan to VHS 2009-2013)
BDe 576
EMU-1 4 1960 330
50 E 1200V= 0 44
EMUs for Uetliberg line, nrs. 511-514
Be 556 94 85 7556 521
EMU-1 8 1992 800
70 E 1200V= 0 40
Uetliberg line DC EMUs, modernised from 2013, nrs. 521-528 (withdrawn from passenger service 04/2022)
Be 556
EMU-2 2 1978 640
60 E 1200V= 0 130
Uetliberg line EMUs, nrs. 531/532 (withdrawn 2015)
FCe 026
EMU-1 5
1924 325
50 E 15kV 16.7Hz 0 50
Old light electric motor cars, nrs. (5)81-(5)85 (nr. 584 now ZMB FCe 2/4 nr. 84)
BDe 576
EMU-1 5 1968 640
70 E 15kV 16.7Hz 0 48
EMUs nrs. 592-596, same as CJ class BDe 577 (withdrawn 08/2009, nr. 592 now ZMB BDe 4/4 nr. 92)
BDe 2/4
EMU-1 1 1938 330
75 E 15kV 16.7Hz 0 60
Second-hand old EMU 3 from WM, used for tourist trains

Last update: 21-09-2025