Siemens X-400 User Manual
Page 135

Approvals, Certificates
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
C79000-G8976-C186-03
135
cULus Approval Information Technology Equipment
cULus Listed 60E9 I. T. E.
Underwriters Laboratories Inc. complying with
● UL 60950-1 (Information Technology Equipment)
● CSA C22.2 No. 60950-1-03
cULus Approval Industrial Control Equipment
cULus Listed 69B1
Underwriters Laboratories Inc. complying with
● UL 508
● CSA C22.2 No. 14-M91
cULus Approval Hazardous Location
cULus Listed 21BP I. T. E. FOR HAZ. LOC.
Underwriters Laboratories Inc. complying with
● UL 60950-1 (Information Technology Equipment)
● CSA C22.2 No. 60950-1-03
● UL 1604 and 2279 (Hazardous Location)
Approved for use in
Cl. 1, Div. 2, GP. A, B, C, D, T4
Cl. 1, Zone 2, GP. IIC T4
Cl. 1, Zone 2, Aex nC IIC T4
Note
When used in environments corresponding to Class I, Division 2 (see above), the
product must be installed in a cabinet, a suitable enclosure, or closed room.