Tab. 3 :
Classification key
according to DIN EN 179
Tab. 4 :
Classification key
according to
DIN EN 14846
EN
44
DIN EN 179 Emergency exit door locks
The properties of locks according to EN 179 are described by the ten-digit classification key.
Tab. 3 explains the classification key.
Class
Meaning
3
For raw installation in public buildings
7
200,000 test cycles
6
Door weight up to 200 kg
B
Suitable for use on fire doors and smoke protection doors on the basis of testing accord-
ing to EN 1634-1
1
Suitable for critical safety function
3
High corrosion-resistance according to EN 1670:2007 Section 5.6
5
Intrusion protection up to 5,000 N
2
Overhang of the operating element up to 100 mm (normal overhang)
A
Emergency exit door lock with handle activation
B or
For installation in single-leaf doors only opening outward or
D
for installation in single-leaf doors only opening inward
DIN EN 14846 Electromechanical locks
The properties of locks according to DIN EN 14846 are described by the nine-digit classification key.
Tab. 4 explains the classification key.
Class
Meaning
3
for use by the public, where there is little incentive to take care and there is a high likeli-
hood of misuse, such as in doors in public buildings
C
200.000 test cycles, no stress of the latch
2
Door weight up to 200 kg, maximum closing force of 50 N
C
suitable for use in fire and smoke protection doors with a classification time of 30 min
–
See "DIN EN 179 Emergency exit door locks", page 44, because this standard estab-
lishes higher requirements on intrusion protection
0
no defined resistance to corrosion, temperature and air humidity
4
high protective effect and no drilling resistance
0
electrical method of operation – no requirement
0
electrical manipulation – no requirement
Notes