Fire resistance class I - installation duct120
Fire resistance class E - circuit integrity90
Number of flame durable sides3
Useful cross section22050mm²
Material insulating materialGlass fibre enforced light concrete
With device connection openingNo
With inspection openingNo
Suitable for application in the exhaust gas areaNo
Suitable for application central air supply and -exhaustNo
Cover attachmentScrew tight
Suitable for cable protectionNo
Mounting perforation in bottomNo