Nortel Networks 4146Ex - Manual (Page 53)

53
Name and adress of
manufacturer
DECT
Handset
4145Ex/
4146Ex
Product name
IP64 IP 64 classification
Ex
DECT Handset 4145Ex/
4146Ex is approved
according to International
standards
ib Intrinsic safe, ib category
IIC
Equipment group II, ib
group C (gas group C)
T3
Temperature group T3
(relevant for gas)