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Fire protection | Ceiling box HWD 30​
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1 Installation of ceiling box HWD 30 without
mineral wool corresponds to fire resistance
class EI30.
2 Installation of ceiling box HWD 30 with mineral wool corresponds to fire resistance class EI60.
3 Installation of ceiling box HWD 30 with Rockwool Termarock 100 corresponds to fire resistance
class EI90.
• For fire-protection ceilings F30-F90
• No encasing required
• Suitable for fitting accessories, e.g. smoke alarms,
luminaires, motion detectors etc.
• With fire-protection cover, also for use as a junction box
• Also for retrofitting
EI30 - EI90
Ceiling box HWD 30
Art. No 9463-50
Ceiling junction box
HWD 30
Art. No 9464-50
Ø 74 mm
The matching Ø 74 mm cutter (Art. No 1084-10) is shown on page 39.
Fire-protection cover
Art. No 1184-94
Ø 74 mm
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