SECURITY +
FIRE RESISTANT
DOORS.
Burglar resistance to RC3 (EN 1627) combined with EI1/EI2 fire resistance. One door. Complete paperwork. For high-security access control with fire compliance.
DS RC3 — Security + Fire Classifications
Source: ETA-22/0324 (revised May 2024, OiB Vienna, Notified Body 1322) and EN 1627 burglar resistance testing. RC3 is certified on both sides of the doorset.
| Product | Configuration | Fire Classification | Security | Smoke |
|---|---|---|---|---|
| DS RC3-1 | Single leaf | EI1 30 | RC3 both sides | Sa / S200 |
| DS RC3-1 | Single leaf · Flagship | EI2 60 | RC3 both sides | Sa / S200 |
| DS RC3-2 | Double leaf | EI1 30 | RC3 both sides | Sa / S200 |
| DS RC3-2 | Double leaf · Flagship | EI2 60 | RC3 both sides | Sa / S200 |
RC3 resistance (EN 1627) is certified on both faces of the doorset — not only the attack side. Fire classification available as EI1 30 or EI2 60, with Sa/S200 smoke control applied across the range. Security and fire performance are achieved in a single doorset, under one evidence pack.
Doorset parameters.
RC3 doorset parameters per ETA-22/0324 and EN 1627. Bespoke dimensions, finishes, and access-control integrations on request.
- Security class
- RC3 to EN 1627 — certified on both faces of the doorset
- Fire classification
- EI1 30 or EI2 60 · EN 13501-2
- Smoke classification
- Sa / S200 · EN 1634-3
- Acoustic (Rw)
- 37 dB (unglazed)
- Leaf construction
- Reinforced double-skinned galvanised steel, steel security inserts, mineral-wool core
- Lock
- Siegenia KFV AS 2750 multipoint lock · cylinder to client profile
- Hinges
- 3 × security hinges with anti-lift dog bolts (single), 6 × (double)
- Frame
- Reinforced galvanised steel profile · factory-welded mitred corners
- Glazing option
- RC3-rated vision panel · max 480 × 880 mm
- Finish
- Powder coat, full RAL palette · Corrosion class C3 (C5 optional)
Gap-fill and frame guidance.
RC3 certification is dependent on correct frame fixing and substrate. A DS RC3 doorset is only burglar-resistant and fire rated when installed within the conditions set out in the ETA and EN 1627 test evidence.
Supported substrates: masonry, concrete, and structural steel — subject to the field of application noted in ETA-22/0324. Intumescent and smoke-control seals are factory-fitted and must not be removed or painted over. Anchor pattern and embedment depth are specified in the installation manual.
Download installation manual →-
01
Verify the opening
Check structural opening against the dimensions and substrate noted on the order acknowledgement and ETA field of application.
-
02
Frame fixing
Fix frame with approved anchors at centres specified in the installation manual. Plumb, square, and packed to manufacturer tolerance.
-
03
Gap-fill
Fill the perimeter gap with the specified intumescent mortar or mineral-wool product per the ETA field of application. No foam. No generic sealants.
-
04
Commission and record
Hang leaf, test closing and latching, record DoP reference and installer sign-off for the Golden Thread file.
Evidence pack for the DS RC3 range.
Every document needed for specification, Gateway submission, and post-occupation record — security and fire, in one evidence pack.
ETA-22/0324
European Technical Assessment. OiB Vienna (NB 1322). Revised May 2024.
Download PDF → DoPDeclaration of Performance
Per doorset. Issued on order confirmation. CE classification and essential characteristics.
Request DoP → DatasheetDS RC3 Technical Data Sheet
Full product parameters, classifications, and ironmongery schedule for DS RC3 single and double leaf.
Download PDF → InstallInstallation Manual
Frame fixing, gap-fill, ironmongery, and field-of-application rules.
Download PDF → NBSNBS Spec Clauses
Pre-written NBS clauses for the DS range — classifications, smoke ratings, ironmongery references.
Open NBS creator → EvidenceTest Reports
EN 1634-1 fire and EN 1627 burglar-resistance test reports. Available on request.
Request reports →DFM DS doorsets are CE marked for internal applications under ETA-22/0324, issued by OiB Vienna (Notified Body 1322).
For external door applications, contact us to discuss current certification status before specifying.
Talk to the UK office →Also in the steel range.
Fire Rated Steel Doors
EI2 30 · 60 · 90 · 120 · Sa4/S200
Single and double leaf. Maximum EI2 120 classification. Standard catalogue.
View range → OS RangeOversized Doors
EI 60 · Non-fire option · CE marked
Non-standard dimensions. Warehousing, logistics, plant rooms, data centres.
View range → DS 00Non-Fire Resistant
Ud 1.2 · Rw 36 dB · C3 corrosion
Steel doors without fire rating. Internal and external. Full RAL palette.
View range →Rammy is coming soon. AI-powered technical guidance, product selection, specification support, and CPD bookings — launching later in 2026.
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