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Franzen Feuerschutztüren GmbH
Gerhard-Welter-Str. 7
D-41812 Erkelenz

phone +49 (0) 2431-80070

Franzen acoustic performance doors

Double-leaf acoustic performance door SN-2

Franzen acoustic performance door SN-2 "System Schröders"
Double-leaf acoustic performance steel door
Acoustic performance * depending on size see
Expert opinion 820SST298-Hrd - TÜV Nord (de)

Combinable with additional performance characteristics:

Thermal transmittance

UD-value ≥ 1.2 W/(m²K) according to EN ISO 10077-1

Air tightness

up to class 3 according to EN 12207 (up to 600 Pa)

expert opinion no. 40-40/12.120, PIV Velbert
Installation in external walls

according to DIN EN 14351-1 CE-Zeichen marked

Resistance to wind load

up to class C4 (up to 2,000 Pa) according to EN 12210

expert opinion no. 40-40/12.120, PIV Velbert

up to class 3A according to EN 12208

expert opinion no. 40-40/12.120, PIV Velbert
Resistance to positive and negative pressure

up to 3.800 Pa according to DIN EN 12211

expert opinion no. 40-52/16.120
Behavior between different climates

class 2 (d + e) according to EN 12219 (deflection)

Ability to release
according to DIN EN 14351-1

proven for doors in escape and rescue routes

Flush with surface

flush-mounted design FLAT

Explosion protection
Logo ATEX For installation in potentially explosive areas, please see confirmation letter Explosion protection ATEX for Franzen hinged doors (in German language) System Schröders (PDF)

Performance characteristics combinable with further Franzen door types:

Fire resistance

tested EI290 (fire door EI290 Franzen TSN-12)
tested EI260 (fire door EI260 Franzen TSN-4)
tested EI230 (fire door EI230 Franzen TSN-2)

according to EN 1634-1

T90 (fire door T90 Franzen TSN-12)
T30 (fire door T30 Franzen TSN-2)

mit allgemeiner bauaufsichtlicher Zulassung (German approval)

Smoke control

Sa / S200 tested according to EN 1634-3

(e.g. smoke control door Franzen RSN-2 CE)

Burglar resistance

up to RC4 (e.g. burglar resistance dor Franzen ESN-2)

according to EN 1627

Technical data
(rough building dimension)
width from 1,250 mm up to 3,450 mm
height from 1,250 mm up to 3,450 mm
Door leaf

leaf thickness 69 mm - smooth double-walled
plate thickness 1.5 mm

  • thin rebate design
    • optional thick rebate design
      • optional insulation inlet full-face glued and pressed with cover plate
        thus particularly plane and smooth door leaf
  • frame-system "ZNG" with flush clipped in profile strips
  • or
  • frame-system "ZG"
  • (see installation variants)
  • corner frame
  • optional enclosing frame
  • optional block frame

with elastic rubber seal
(seal type depending on performance characteristic)

Sealing system See acoustic performance measurement reports
Glass inset

glass dimensions and -form variable

  • sound insulation glass ≥ 44 dB
  • optional with intermediate glass inset bars
  • optional with port-hole

glass inset bars with concealed screw connection (for rectangular glass inset)


per leaf 2/3-part KO door hinges
with patented easy-running bearings as easy running doors

  • optional door hinge with 3D adjustment

various fittings possible


various locking systems possible

active leaf

profile cylinder prepared (cylinder on-site)

Self closing

both leafs with door closer according to DIN EN 1154 resp. EN 1155
with door closing sequence control according to EN1158


wall according to acoustic performance requirements

  • optional blunt installation in soffit
  • optional installation on the wall plate
  • lock control
  • automated opening
  • motor locks ( also in 3-way locking)
  • powder coating in RAL colors
  • prison cell doors (special locking and food flap)
  • special solutions according to request and customer requirements

The information given refers to the usual configurations. Individual configurations may be required when combining different performance characteristics.

Our team will be happy to assist you with the individual planning of your requirements.