Here is a piece of DIN rail that already knows exactly how long it needs to be. The ABB DSW6 is a pre-cut 6-module section of 35 x 7.5 mm top-hat rail, ready to mount onto a flat surface without measuring, marking, or reaching for a hacksaw.

Who Actually Uses These
Pre-cut rail sections like this one are not meant for large industrial panels where you run a full meter of rail across the backplate. They are for the smaller jobs: a handful of devices in a junction box, a retrofit where you are adding a few components to an existing setup, a test bench, a demonstration board, or a field repair kit. The DSW6 is for the electrician who needs six modules worth of mounting capacity and does not want to cut down a 2-meter rail and deburr the edges.

What Six Modules Gets You
One module equals 17.5 mm, the standard width for miniature circuit breakers and most modular DIN rail devices from ABB and other manufacturers. Six modules give you 105 mm of usable rail length, enough for six single-pole MCBs, three 2-pole devices, a mix of breakers and terminal blocks, or a small power supply combined with a few other components. The math works out the same regardless of which brand you are mounting — the 17.5 mm module is an industry standard.

The Rail Itself
The DSW6 follows EN 60715 (also known as DIN EN 60 715), the international specification for mounting rails in low-voltage switchgear assemblies. The profile is the familiar 35 x 7.5 mm "top-hat" (O-profile) that snaps securely into the mounting clips found on virtually every DIN rail device on the market. Material thickness is 1 mm, and the surface is galvanised for corrosion resistance. Weight is approximately 36 grams — light enough to handle easily, heavy enough to stay rigid under load.

Installation Details
Two screw holes are pre-drilled for mounting onto flat surfaces. Position the rail where you need it, mark through the holes, drill, and secure with appropriate screws. That is it. No cutting, no filing, no sharp edges. The rail can be mounted horizontally or vertically depending on your panel layout, though horizontal is the conventional orientation for most distribution boards.

Family Consistency
The DSW6 belongs to the same ABB Stotz DSW series as the DSW3 and other module-count variants. All share the same material, finish, and EN 60715 compliance. The only difference is length, which means you can mix different section sizes in the same enclosure without compatibility concerns.

What It Is Not
The DSW6 is not a perforated rail, not a 35 x 15 mm deep rail, and not a meter-long rail for full-size panels. It is a short, solid, pre-cut section for single-mounting applications where you only need six modules of rail. If you need more capacity, ABB offers the DSW4 (4 modules), DSW3 (3 modules), DSW2 (2 modules), and DSW1 (1 module) in the same series.

When You Reach for This
Grab the DSW6 when you are adding a small sub-distribution board in a workshop, mounting a few devices inside a machine control cabinet, building a training panel, or replacing a damaged rail section without tearing apart the whole enclosure. It is the right size for jobs where a full-length rail would be overkill and cutting one down would be a waste of time.