When you need to mount exactly one DIN rail device — a single MCB, a terminal block, a relay — cutting a full metre of rail is wasteful. The ABB DSW1 is a pre‑cut 1‑module section that gives you precisely the length you need, with no cutting, deburring, or wasted material.

What One Module Gets You
One module equals 17.5 mm, the standard width for MCBs, RCCBs, RCBOs, terminal blocks, interface relays, and most DIN rail components. The DSW1 delivers 35 mm of rail length (the rail itself is 35 mm wide), providing a secure mounting platform for a single device or a compact assembly.

Where You Use It
The DSW1 is ideal for retrofits where a single device needs mounting inside an existing enclosure, for test and measurement setups, for portable distribution boxes, for educational training panels, and for any situation where a full‑length rail is physically too large or unnecessarily heavy. It is also useful as a dedicated rail section inside a larger enclosure for isolating a specific functional group.

The Rail Itself
The DSW1 follows EN 60715 (DIN EN 60 715), the international specification for mounting rails in low‑voltage switchgear assemblies. The profile is the familiar 35 × 7.5 mm “top‑hat” (O‑profile) that snaps securely into the mounting clips on virtually every DIN rail device. Material thickness is 1 mm, and the surface is galvanised for corrosion resistance. Weight is approximately 6 g — negligible in a panel, but enough to stay rigid under load.

Installation Details
Two pre‑drilled screw holes allow direct 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 panel layout.

Family Consistency
The DSW1 is the smallest member of the ABB Stotz DSW series of pre‑cut rail sections, which also includes DSW2 (2 modules), DSW3 (3 modules), DSW4 (4 modules), and DSW6 (6 modules). All share identical material, profile, and finish, differing only in length. This allows modular assembly where multiple sections can be placed end‑to‑end if a longer rail is needed.

Numbers and Compliance
Full part number: GHS2101926R0001. EAN: 4012233135806. Bürklin order number: 05N480. Country of origin: Germany. RoHS compliant, SVHC‑free (Date of RoHS guidelines: March 31, 2015).