Technical data

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General technical data
Specifications for temperature ranges and IP classification exist on different levels, we differ between industrial environ-
ments and outdoor installations. The components designed for respective variants must then withstand the ambient
temperature as well as the inherent heat generated in enclosures and cubicles. In general, each enclosure is considered
to generate a 15°C (59 F) increase in temperature, for example, components must be selected that withstand +85°C
(+121 F) in order for us to guarantee an ambient temperature (outside of the cubicle) of +55°C (+131 F).
Requirement
Factor Severity Standard Comments
Temperature +5 to +55°C (+41 to 131°F) IEC 721-3-3
Operating –25 to +70°C* (–13 to 158°F *)
Temperature –25 to +70°C (–13 to 158°F) IEC 721-3-1/2
Storage & transport
Relative humidity 5 to 95%, non-condensing IEC 721-3-3
Operating
Relative humidity 5 to 95% condensation allowed IEC 721-3-1/2
Storage & transport outside packaging
Airborne contaminants G2 (1000 Å=0.1 µm) Moderate ISA 71.04
severity level
Environmental and mechanical conditions
Do not use until temperature and
humidity have stabilized
Product installed in IP 21
enclosure, or better, with
limited air flow (no fan)
Product in packaging
* Extended temperature range
Temperature in cubicle
+5 to +55°C (+41 to 131 F)
Industrial environment
Accepted operating temperature +5 to +40°C
(+41 to 104 F)
Outdoor environment
Accepted operating temperature –25 to +55°C
(–13 to 131 F)
Temperature in the product
+5 to +70°C (+41 to 158 F)
Temperature in cubicle
–25 to +70°C (–13 to 158 F)
Temperature in the product
–25 to +85°C (–13 to 121 F)
IP20
… Protection against
access to dangerous
voltage with a finger
… Protection against the
penetration of solid
foreign objects
≥12.5 mm (0.52 in)
IP21
… Protection against
access to dangerous
voltage with a finger
… Protection against the
penetration of solid
foreign objects
≥12.5 mm (0.52 in)
… Protection against
damage due to the
penetration of verti-
cally falling dripping
water.
B A C K