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ALPHA AS Modular Distribution Boards
Introduction
5/3
Siemens ET A1 · 10/2008
5
■
Technical specifications
1)
Depending on busbar support clearance.
2)
Further RAL colors are available on request.
Cabinet dimensions
Overvoltage category
III
Rated impulse withstand voltage U
imp
in kV
6
Clearance and creepage distances
DIN VDE 0110
Rated insulation voltage U
i
in V
690
Rated operational voltage U
e
in V AC/DC
690
Rated voltage U
n
(40 Hz to 60 Hz AC) in V
690 for built-in devices
Rated current in A
630 (An expansion to 1250 A will be available soon)
Rated peak short-circuit current
I
pk
in kA
• With 60 mm busbar supports
Up to 78.9
1)
• With 185 mm busbar supports
Up to 110
1)
Rated short-time current
I
cw
in kA
• With 60 mm busbar supports
Up to 34
1)
• With 185 mm busbar supports
Up to 50
1)
Protective measures
Safety class 1 (protective conductor connection)
Safety class 2 (total insulation)
Number of conductors within the busbar run
4/5
Degree of protection acc. to EN 60529
IP43 with door, IP55 with door (with matching flanges)
Standard mounting rail tier spacing per standard mounting rail tier in mm 150
Modular width (MW)
18 mm, 12 MW + 1 mountable MW
Pollution degree
3
Ambient temperature in °C
35 (24-h average value)
Relative air humidity in %
50 at 40 °C
Test specifications
EN 60439-1/3 (VDE 0660 Part 500/504), DIN VDE 0603-1
Enclosures
Sheet steel
Mounting dimensions
DIN 43870
Surface
Electrogalvanized and powder-coated
Color
2)
RAL 7035 (light gray)
Locking system
3-point locking with integrated espagnolette lock
(can be replaced with other locking systems if required)
Packing material
Shock-proof, environmentally-compatible
Cabinet
(external dimensions)
Height
Width
Depth
mm
mm
mm
1950 with base (100 mm)
300
550
800
1050
1300
400
© Siemens AG 2008
