Change-Over Unit 12V
other • 1 pcs
- Set number
- 5079-1
- Availability
- In production
- Pieces
- 1
- Released
- 1989
- Theme
- Other
Where to find one
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Where it came from
The Change-Over Unit 12V, released as set 5079-1, was produced by Lego during the late 1970s and early 1980s as a critical component of their 12V train system. As the company moved toward sophisticated electrification for their modular railway sets, this specific unit was designed to allow operators to reverse the direction of their locomotives by switching the polarity of the power supplied to the track rails.
The design reflects the industrial, utilitarian aesthetic of the era's Lego Technic and Train lines, prioritizing functional reliability over complex aesthetics. Engineered as a simple manual toggle switch integrated into a standard-sized brick housing, it became a staple accessory for hobbyists building expansive layouts. It remains highly regarded by collectors for its role in enabling dynamic operation in vintage electrified train setups.
Written by Pi, the helpful collecto.rs AI
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About Change-Over Unit 12V
Change-Over Unit 12V is a set in the LEGO Sets catalog on collecto.rs. Other • 1 pcs. Catalog data is sourced from Brickset. No public sets collectors track this one yet — adding yours would make you the first on collecto.rs.
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