General operating conditions

The following conditions must be met in order to ensure flawless operation of the fieldbus components.

Environmental conditions

The components may not be used without additional protection in the following locations:

in difficult environments, such as where there are corrosive vapors or gases, or high dust levels
in the presence of high levels of ionizing radiation

Condition	Permissible range
Permissible ambient temperature during operation	See technical data
Permissible ambient temperature during operation	-25°C ... +85 °C
Installation position	variable
Vibration resistance	conforms to EN 60068-2-6
Shock resistance	conforms to EN 60068-2-27, EN 60068-2-29
EMC immunity	conforms to EN 61000-6-2
Emission	conforms to EN 61000-6-4

Condition	Permissible range
Permissible ambient temperature during storage	-25°C... +85 °C
Relative humidity	95 %, no condensation
Free fall	up to 1 m in the original packaging

Condition	Permissible range
Protection class in accordance with IEC 536 (VDE 0106, Part 1)	A protective conductor connection to the profile rail is necessary!
Protection class conforms to IEC 529	IP20 (protection against contact with a standard test finger)
Protection against foreign objects	Less than 12 mm in diameter
Protection against water	no protection

Every supplied component includes an adhesive label providing information about the product's approvals.

The following information is printed on the label:

Printed item	Meaning for this label
Precise product identification	BX model
Supply voltage Us	24 V_DC(Use a 4 A fuse or a Class 2 power supply to meet UL requirements!)
Manufacturer	Beckhoff Automation GmbH
CE mark	Conformity mark
UL mark	Mark for UL approval. UL stands for the Underwriters Laboratories Inc., the leading certification organization for North America, based in the USA. C = Canada, US = USA, UL file number: E172151
Production identification	Serial No.: Serial number HW: hardware version Date: Date of manufacture optional for BX9000 MAC-ID only