Technical data
Technical changes reserved
9
Intended use
Observing the technical data is important for ensuring the intended use.
Specifications for switchgear and controlgear assemblies
The FWU field distributor has been equipped to receive the univers FW internal
fitting system (with UN0xFN vertical uprights). After being appropriately
extended, it is suitable as a switchgear and controlgear assembly according to
EN 61439-1/-3 for:
-
Frequency f
n
= 50 Hz
-
Rated voltage U
n
= 230 V/400 V
-
Rated peak withstand current U
imp
= 4 kV; overvoltage category III
-
Rated insulation voltage U
i
= 400 V
-
Degree of pollution 3
-
Minimum air distances = 3 mm
-
Minimum creepage distances = 5.6 mm
Rated current
I
nA
max. 125 A
Short-circuit resistance I
CC
I
CC
< 10 kA
Application
-
Fixed
-
Indoor installation
-
For flush-mounted or hollow wall installation
-
Protection against external mechanical influences: see “Impact protection”
-
After being extended for use as a switchgear and controlgear assembly
according to EN 61439, part 3 (Distribution boards intended to be operated
by ordinary persons/DBO), it may be operated by ordinary persons. Devices
that may not be operated by ordinary persons must be marked as such by
the installer according to standards or require the use of a key or tool.
Additional requirements according to standard EN 61439 must be observed.
-
Equipped for use under normal operating conditions according to the
EN 61439 series of standards. Variations are possible after the installer has
consulted with the planner, taking into consideration precautions according
to the EN 61439 series of standards.
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Technical data