Data for operation and environment

Beckhoff products are designed for operation under certain environmental conditions, which vary according to the product. The following specifications must be observed for operation and environment in order to achieve the optimum service life of the products.

	Operate the braking resistor only under the specified environmental conditions Operate the braking resistor only in accordance with the specifications for operation and the environment listed in this chapter. This ensures a long service life and proper operation. The lifetime of the braking resistor may be shortened at temperatures above +40 °C and with encapsulated installation.

Environmental requirements
Climate category – operation	3K3 according to EN 60721
Ambient temperature during operation	-30 °C ... +40 °C Extended temperature range up to +60 °C with power derating of 4 % / 10 K
Ambient temperature during transportation	-40 °C ... +80 °C, maximum fluctuation 20 K per hour
Ambient temperature during storage	-40 °C ... +80 °C, maximum fluctuation 20 K per hour
Permissible humidity in operation	85 % relative humidity, no condensation
Permissible humidity during transport and storage	85 % relative humidity, no condensation
Corrosion protection	Strip-galvanized housing Special measures are to be taken in consultation with the vendor if the environmental conditions are extreme or if they differ from those described in this chapter.
Degree of pollution	3 according to EN 60204 and EN 50178
Specifications for intended use
Ventilation	Free convection
Insulation material class	N according to IEC 60085
Protection rating	Devices IP20 Terminals IP00
Installation position	Vertical or horizontal according to chapter Installation position
Vibration resistance	3M2
Shock resistance	3M2
Approvals	cURus See chapter: Directives and standards