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TECHNICAL REQUIREMENTS FOR THE
FIRE STOP
The fire resistance period of the fire stop is defined by statu-
tory requirements and standards, and compliance with this
rating must be demonstrated by appropriate test certificates
for the fire stop materials. We distinguish between German
national (F and S classes) and European classifications (R or
EI classes) which precisely define the performance require-
ments. The number indicated by the classification stands for
the minimum fire resistance period in minutes.
Fire resistance classes to
DIN 4102 part 2
Fire resistance period in
minutes
Fire resistance classes for
cable fire-stops to
DIN 4102 part 9
Fire resistance period
in minutes
F30
≥
30
S30
≥
30
F60
≥
60
S60
≥
60
F90
≥
90
S90
≥
90
F120
≥
120
S120
≥
120
F180
≥
180
S180
≥
180
Fire resistance class
ISO-FLAME KOMBI F120
F30 / EI 30
ceiling /wall thickness
≥
100mm
minimum installation depth
≥
50mm
F120 / EI 120
ceiling /wall thickness
≥
150mm
minimum installation depth
≥
80mm
or
≥
2 x 40mm (joint width up to 20mm)
≥
100mm or
≥
2 x 50mm
Fire resistance class S90
ISO-FLAME BRICK S90
(rectangular openings)
ISO-FLAME PLUG S90
(circular openings)
Minimum thickness of the
component
100mm (wall), 150mm (ceiling)
100mm (wall), 150mm (ceiling)
Minimum thickness of the
fire stop
200mm (wall), 200mm (ceiling)
200mm (wall), 200mm (ceiling)
Maximum cable occupation
60% (wall), 60% (ceiling)
60% (wall), 60% (ceiling)
FIRE RESISTANCE CLASSES TO DIN 4102
RATINGS FOR ISO
F
-FIRE PROTECTION SYSTEM ACCORDING TO
DIN 4102 / DIN EN 13501-2 & BS EN 13501-2
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REGULATIONS