Siemens SCALANCE XR524-8C Operating Instructions Manual page 10

Safety notes
NOTICE
Suitable fusing for the power supply cables
The current on the terminal may not exceed 25 A. Use a fuse, that protects against currents
> 25 A. The fuse must meet the following requirements:
In areas according to NEC or CEC:
• Suitable for DC (min. 60 V / 25 A)
• Breaking current at least 10 kA
• Approval according to ANSI/UL 248-1
• Suitable for the protection of DC power supply circuits
In other areas:
• Suitable for DC (min. 60 V / 25 A)
• Breaking current at least 10 kA
• Approval in compliance with IEC 60127-1 / EN 601127-1
• Breaking characteristics: B or C for circuit breakers and fuses
• Suitable for the protection of DC power supply circuits
Safety notices on use in hazardous areas
General safety notices relating to protection against explosion
Opening the device
Do not open when energized. Note that this does not apply to opening the service panel in
the housing.
Safety notices when using the device according to Hazardous Locations (HazLoc)
If you use the device under HazLoc conditions you must also keep to the following safety
notices in addition to the general safety notices for protection against explosion:
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or non-
hazardous locations only.
This equipment is suitable for use in Class I, Zone 2, Group IIC or non-hazardous locations
only.
10
WARNING
Operating Instructions, 05/2014, A5E03275845-05
SCALANCE XR-500