Class 4 article

4.5V used to be the voltage standard for the first electric components (e.g. motors, lights) in certain LEGO sets. The power came from a battery box with 3x 1.5V batteries.

Beside Basic sets and TECHNIC sets, the 4.5V standard was used for motorization of the first electric LEGO Trains which marked a long era from 1966 to 1986.

The 4.5V standard was later used for battery powered DUPLO Trains.

4.5V powered Themes

4.5V powered Sets





Service Packs

Idea Books

Complete List

Image#SetNumber of piecesMinifiguresPriceRelease
002-4.5V Gears Motor Set.jpg0024.5V Gears Motor Set3$5.001965
088-Super Set.jpeg0884.5V Super Set615€99.501969-1971
1-4.5V Replacement Motor.jpg1Replacement 4.5 V Motor1 1977
0100-1.jpg100Motor with Wheels and Wire16 1966
101-4.5V Battery Case 1966.jpg1014.5V Battery Case2 1966
101-4.5V Battery Case.jpg1014.5V Battery Case.2 1969
102.jpg102Front End Loader57 1970
102A-Front-End Loader box.jpg102AFront-End Loader64 1970
104-Replacement 4.5V Motor.jpg1044.5V Replacement Motor1 1970
107-1.1125542928.thumb2.jpg1074.5V Motor Set31 1976
108 Battery Box.png108Battery Box1 1976
Tchcont2.jpg1092TECHNIC Control 2467$190.991986
11-Locomotive Traction Tires.jpg11Locomotive Traction Tyres8 1977
1101-Replacement 4.5V Motor.jpg1101Replacement 4.5V Motor1 1977
1103-Battery Box.jpg1103Battery Box2 1977
1104.jpg1104Battery Cables  1981
11-Locomotive Traction Tires.jpg1111Rubber Rims for Locomotive Wheels8 1977
12-Wheel Bearings for Locomotives.jpg1112Train Sliding Wheel Blocks2 1977
1115-4.5V Lighting Brick (2 x 2).jpg11154.5V Lighting Brick (2 x 2)1 1977
1119 Locomotive Piston Assemblies.jpg1119Locomotive Piston Assemblies6 1977
0112-2.jpg112Locomotive with Motor76 1966
0113-2.jpg113Motorized Train Set271 1966
1135-2-911824043.jpg1135Battery Cable Kit: 12 Connectors, 3m Cable13 1981
1137-1.jpg1137Train Couplings4 1981
11-Locomotive Traction Tires.jpg1138Replacement Rubber Wheel Treads for Trains8 1981
1139-1-911824214.jpg1139Motor-mount Plate with Magnetic Couplers5 1981
1141-1-911824292.jpg11412 Wheel Bricks with Attached Small Red Train-wheels2 1981
1142-1-911824329.jpg11422 Wheel Bricks with Attached Small Black Train-wheels2 1981
1143-1-911824358.jpg11432 Wheel Bricks with Attached Large Red Train-wheels6 1981
1144-1-911824396.jpg1144Train Baseplate1 1981
1145-1-911824438.jpg1145Bogie Plate1 1981
0116-1.jpg116Starter Train Set with Motor364 1967
1168-Battery Box.gif1168Battery Box2$4.001986
117-Locomotive without Motor.jpg117Locomotive Without Motor99 1967
1175-4.5V Motor.jpg11754.5V Motor1 1978
118 Electronic Train top front side.jpg118Electronic Train99 1968
Fullsizeoutput 834.jpeg118Motorized Freight or Passenger Train451$19.991969
119-Super Train Set.jpg119Super Train Set451 1968
12-Wheel Bearings for Locomotives.jpg12Wheel Bearings for Locomotives2 1977
120-Complete Freight Train Set with Tipper Trucks Box.jpg120Complete Freight Train with Tipper Trucks163 1969
122-Loco and Tender.jpg122Loco & Tender100 1969
0124-1.jpg124Goods Wagon56 1969
126-Steam Locomotive.jpg126Steam Locomotive60 1970
0127-1.jpg127Complete Train with 3 Wagons575 1971
0128-2.jpg128Mobile Crane  1971
0130-1.jpg130Double Tipper Wagon20 1972
0131-1.jpg131Passenger Coach67 1972
132-2.jpg132Port Crane and Flat Waggon60 1972
133-1-964111770.jpg133Locomotive75 1975
134-1.jpg134Mobile Crane and Wagon862 1975
136-1.jpg136Tanker Wagon83 1975
0137-2.jpg137Passenger Sleeping Car82 1975
138-Electronic Train.jpg138Electronic Train107 1969
0146-1.jpg146Level Crossing681 LEGOLAND Minifigures 1976
147-1.jpg147Refrigerated Wagon1152 LEGOLAND Minifigures 1976
0148-1.jpg148Station2935 LEGOLAND Minifigures 1975
149.jpg149Fuel Refinery3283 LEGOLAND Minifigures 1976
15-Lighting Brick (2 x 2).jpg15Lighting Brick (2 x 2)1 1977
150-1.jpg150Straight Track25 (1966-72) 28 (1973-76) 1966
151-1.jpg151Curved Track25 (1966-74) 28 (1973-76) 1966
0154-1.jpg154Rail Points4 1967
155-1.jpg1552 Cross Rails, 8 Straight Tracks, 4 Base Plates14 1967
156- 2 Rail Signals.jpg1562 Rail Signals6 1968
0156-2.jpg156Straight Rails with Sleepers6 1976
157-Automatic Direction Changer.jpg157Automatic Direction Changer7 1969
0157-1.jpg157Curved Rails with Sleepers25 1976
0159-1.jpg159Straight Rails and Crossing25 1976
160-Magnetic Couplings.jpg160Magnetic Couplings6 1968
161-1.jpg161Battery Wagon8 1972
162-1.jpg162Locomotive210 1977
163-1.jpg163Cargo Wagon1282 1977
164-1.jpg164Passenger Coach1482 1978
165 Box.jpg165Cargo Station2602 1978
0166-1.jpg166Flat Wagon Worker Train Conductor 1978
0167-1.jpg167Car Transport Wagon Person, Train Conductor 1978
0170-1.jpg170Push-Along Play Train93 1972
171-1.jpg171Train Set without Motor147 1972
180-1.jpg1804.5V Train with 5 Wagons228 1972
181-1.jpg181Train Set with Motor, Signals and Shunting Switch148 1972
182-Train Set with Signal.jpg182Train Set with Motor369 1975
0183-1.jpg183Train Set with Motor and Signal  1976
19-Locomotive Piston Assemblies.jpg19Locomotive Piston Assemblies6 1977
29-4.5V Motor.jpg294.5V Motor1 1977
3-Battery Box.jpg3Battery Box2 1977
4-4.5V Motor Battery Cables.jpg44.5V Motor Battery Cables2$1.501977
445-Lighting Device Pack.jpg445Lighting Device Pack3 1966
5000-Replacement 4.5V Motor.jpg5000Replacement 4.5 V Motor1€5.501987
5001.png5001Wheel Bushes for 4.5v Motor1$7.001987
5003.jpg50034.5v Lighting Bricks2 1987
5005.jpg5005Battery Box1$5.751987
5100.jpg5100Battery Rod 4.5V1 1987
5101-4.5V Motor for Technical Sets.jpg51014.5V Motor for Technical Sets1 1987
7-Battery Box.jpg7Battery Box2$3.501980
7-Train Signal with Ties.jpg7Train Signal with Ties4 1981
7710-1.jpg7710Push-Along Passenger Steam Train4475 1980
7720-1.jpg7720Diesel Freight Train Set4253 1980
7722-1.jpg7722Steam Cargo Train Set4953$68.501985
7810-1.jpg7810Push-Along Steam Engine971 1980
7813-1.jpg7813Shell Tanker Wagon1211$16.501986
7814-1.jpg7814Crane Wagon1132$4.871980
7815-1.jpg7815Passenger Carriage / Sleeper2282 1983
7816-1.jpg7816Shell Tanker Wagon1201 1980
7817 Box.jpg7817Crane Wagon1471$25.501985
7818-1.jpg7818Passenger Wagon1172 1980
7819-1-1.jpg7819Postal Container Wagon1831 1983
7820-1.jpg7820Mail Van2122 1980
7821 Box.jpg7821Track & Lighting Maintenance Wagon902 1982
7821-1.jpg7821Track Maintenance Vehicle932 1983
7822-1.jpg7822Railway Station3843 1980
7824-1-3.jpg7824Railway Station4789$51.001983
7835-1.jpg7835Road Crossing1291$21.001985
7838 Box.jpg7838Freight Loading Depot3153 1983
7850-1.jpg7850Straight Rails32$$9.251980
7851-1.jpg7851Curved Rails32$9.251980
7853-1.jpg7853Crossing5 1980
8-Replacement 4.5V Motor.jpg8Replacement 4.5V Motor1$5.501981
0870-1.jpg870Technical Motor, 4.5V22 1977
0901-1.jpg9014.5V Universal Motor29 1976
9605.jpg96054.5v TECHNIC Resource Set1516$189.001985