787-1226
Properties
Product manual | Version: 1.0.0
21
Compact Power Supply
3.7.5 MTBF/Lifespan
Table 18: Technical Data – MTBF/Lifespan
Property
At
Load
T
amb
Value
MTBF (IEC 61709)
240 VAC
100 %
25 °C
> 500000 h
3.7.6 Environment requirements
Table 19: Technical Data ‒ Environmental Conditions
Property
Value
Surrounding air temperature, operation
−25 … +70 °C
Derating (surrounding air temperature, operation
> 55 °C)
−2.67 %/K
1)
2)
Relative humidity
20 … 90 %
Surrounding air temperature, storage
−40 … +85 °C
Relative humidity, storage (without condensation)
10 … 95 %
Temperature coefficient
≤ ±0.03 %/K
Derating (operating altitude)
2)
–―
Elevation above sea level, max.
2000 m (3000 m for storage)
Overvoltage category
II
Vibration according to IEC 60068-2-6
1g: < 9 Hz: 3.5 mm, 90 min, 2g: 9 < f < 150 Hz
Shock according to IEC 60068-2-27
15g, 11 ms, 1000 shocks per axis and direction, half-
sine
Pollution degree according to IEC/EN 60664-1
2
Climatic category
3K3
LBS freedom
3)
Yes
RoHS II / Reach
Yes
1)
See
8
Derating surrounding air temperature [
8
2)
Surrounding temperature, operation > 55 °C
3)
LBS = Paint-wetting impairment substances
The materials used in manufacturing do not contain any substances harmful to the wetting properties of lac-
quers..
-30 -20 -10 0
10 20 30 40
55
70
60
50
40
20
60
80
100
Load (%)
Derating Curve
Surrounding Air Temperature (°C)
Figure 14: Derating surrounding air temperature
Note
Observe the following for long-term storage:
For long-term storage, power must be applied to equipment with built-in capacitors for
five minutes at least every two years.
