34 Device Description
WAGO-I/O-SYSTEM 750 XTR
750-495/040-00x 3-Phase Power Measurement Module 690 V
Manual
Version 1.2.0
3.6.9
Climatic Environmental Conditions
Table 18
: Technical Data ‒ Climatic
Environmental Conditions
Surrounding air temperature, operation
−40 °C … +70 °C
Surrounding air temperature, storage
−40 °C … +85 °C
Relative humidity
*
95 %
Elevation above sea level
without temperature derating
with temperature derating
max.
0 m … 2000 m
2000 m … 5000 m: 0.5 K per 100 m
5000 m
Resistance to harmful substances
Acc. to IEC 60068-2-42 and
IEC 60068-2-43
Maximum pollutant concentration at
relative humidity < 75 %
SO
2
≤
25 ppm
H
2
S
≤
10 ppm
*
Short-term condensation acc. class 3K7 / IEC EN 60721-3-3 permitted, applying
E-DIN 40046-721-3 (except wind-driven precipitation, water and ice formation)
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3.6.10 Electrical Isolation
Table 19: Technical Data – Electrical Isolation
Test voltage
3.3 kVAC, 50 Hz, 1 min.
Type of insulation per EN 61010-2-201
Measurement inputs / system
Impedance and additional insulation
(safe isolation)
Requirement, N input Not dangerously active
Requirement, Ix/RCx inputs Current transformer with basic
insulation
Line/neutral conductor voltage 600 VAC
Overvoltage category
1)
III up to 3,000 m above sea level
II at 3,000 m ... 5,000 m above sea level
Measurement inputs / system
Transformer and additional insulation
(safe isolation)
Requirement, N input Assumed to be dangerous
Requirement, Ux inputs Voltage transformer with basic
insulation
Requirement, Ix/RCx inputs Current transformer with basic
insulation
Line/neutral conductor voltage 600 VAC
Overvoltage category
1)
III
Adjacent modules
Basic insulation
2)
Line/neutral conductor voltage 600 VAC
Overvoltage category
1)
III
1)
Nominal voltage: 400 V (Lx-N) / 690 V (Lx-Ly) in a 3-phase network with N conductor,
600 V (Lx-Ly) in a 3-phase network without N conductor
2)
For safe isolation from the preceding module, a distance module must be inserted to
the left of this module.
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