DIN Rail Profiles

35 × 7.5 and 35 × 15 top-hat profiles. Slotted and unslotted, 2000 mm standard length and 150–450 mm pre-cut sizes; pregalvanized and Cr+3 finish, EN 60715. DIN Rail Profiles is listed with 18 reference codes.

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Reference codes: 18
Standard: EN 60715
Profile: 35×7.5 (1.0 mm) · 35×15 (1.5 mm)
Hole pattern: 6.2×18 · 5.2×18 · unslotted

Dimension and reference code table

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DIN Rails

Product code	Profile	Hole pattern	Length	Compatibility / packing	Case unit
DT-3575-S-2000	35x75	Slotted	2000mm	20 pcs	1000 pcs
DT-3575-U-2000	35x75	Unslotted	2000mm	20 pcs	1000 pcs
DT-3515-S-2000	35x15	Slotted	2000mm	10 pcs	500 pcs
DT-3515-U-2000	35x15	Unslotted	2000mm	10 pcs	500 pcs
DT-3575-S-0150	35x75	Slotted	150mm	8 Module	50 pcs
DT-3575-S-0170	35x75	Slotted	170mm	9 Module	50 pcs
DT-3575-S-0215	35x75	Slotted	215mm	12 Module	50 pcs
DT-3575-S-0275	35x75	Slotted	275mm	15 Module	50 pcs
DT-3575-S-0310	35x75	Slotted	310mm	17 Module	25 pcs
DT-3575-S-0400	35x75	Slotted	400mm	22 Module	25 pcs
DT-3575-S-0450	35x75	Slotted	450mm	25 Module	25 pcs
DT-3515-S-0150	35x15	Slotted	150mm	8 Module	50 pcs
DT-3515-S-0170	35x15	Slotted	170mm	9 Module	50 pcs
DT-3515-S-0215	35x15	Slotted	215mm	12 Module	50 pcs
DT-3515-S-0275	35x15	Slotted	275mm	15 Module	50 pcs
DT-3515-S-0310	35x15	Slotted	310mm	17 Module	25 pcs
DT-3515-S-0400	35x15	Slotted	400mm	22 Module	25 pcs
DT-3515-S-0450	35x15	Slotted	450mm	25 Module	25 pcs

DIN Rail Profiles — technical overview

What a DIN rail does

The 35 mm top-hat rail is the common mounting plane inside a distribution board or control panel. Miniature circuit breakers, residual current devices, terminal blocks, relays, contactors and meters all clip onto the same profile, so devices from different manufacturers share one row without adapters. Demte rails are produced in compliance with IEC 60715, the international standard that defines the profile.

How the rails are cut

Rails are produced on automated flying-shear lines. The shear travels with the moving profile, so the section is not crushed at the cut and the edge leaves the machine burr-free. There is no deburring step before assembly, and no sharp edge for an installer to catch a hand or a cable insulation on.

Choosing the profile

35 × 7.5 mm — the standard section, used for most distribution boards and control panels.
35 × 15 mm — deeper section with higher rigidity, for long unsupported spans and heavier device rows.
Slotted (S) — the oblong hole pattern lets the fixing points be chosen anywhere along the rail and adjusted after marking.
Unslotted (U) — a continuous surface, drilled on site or fixed by other means.

Lengths

2000 mm full length — for panel builders who cut in house. Packed 20 pcs for 35 × 7.5 and 10 pcs for 35 × 15.
Pre-cut 150–450 mm — sized to module counts, so the rail matches the enclosure without cutting: 150 mm = 8 modules, 170 mm = 9, 215 mm = 12, 275 mm = 15, 310 mm = 17, 400 mm = 22, 450 mm = 25.
Cut to length — made to order, any required length with a ± 1 mm tolerance.

Slot positioning on cut rails

Symmetrical cut — the factory standard. The distance from the last hole to the edge is equal at both ends.
Cut per drawing — asymmetrical hole positions or specific start and end offsets, produced from a DWG or DXF file you supply.

Material and finish

Zinc-plated steel with RoHS-compliant passivation. Pregalvanized and Cr+3 coatings are available.

Frequently asked questions

Which profile should I choose, 35 × 7.5 or 35 × 15?

35 × 7.5 mm covers most distribution boards and control panels. Choose 35 × 15 mm where the rail spans a long distance without support, or carries a heavy row of devices, because the deeper section is stiffer.

Can Demte cut rails to a length that is not in the table?

Yes. Cut-to-length is a made-to-order item with a ± 1 mm tolerance, and the edges arrive burr-free, so no secondary processing is needed before assembly.

Will the rails fit devices from other manufacturers?

Yes. The rails are produced to IEC 60715, the standard that defines the 35 mm top-hat profile, so any device designed for that profile clips on.

What is the difference between slotted and unslotted rails?

A slotted rail has an oblong hole pattern along its length, so fixing points can be chosen and adjusted freely. An unslotted rail has a continuous surface and is drilled on site or fixed by other means.