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ALPHA 8HP Molded-Plastic Distribution Systems
Introduction
9/8
Siemens ET A1 · 10/2008
9
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Technical specifications
Rated current in A
250
400
630
1000
Rated operational voltage U
e
in V
690 AC, 600 DC
Rated insulation voltage U
i
in V
1000 AC, 1200 DC
Molded-plastic group I
600 CTI
Acc. to DIN VDE 0110 Parts 1 and 2/01.89
For the installed devices, the specifications listed in the catalogs are
applicable
Rated impulse withstand voltage/degree of pollution
8 kV/3
Minimum air clearances in mm
8
Minimum creepage distances in mm
12.5
Rated current
• Busbars in A
250
400
630
1000
• Built-in devices in A
Up to 800
• Infeed in A
Up to 1000
Degree of protection acc. to EN 60529, DIN VDE 0470
IP65 (8HP1 520 cable entry plate with additional measures)
Color
• Enclosure parts
RAL 7035, light gray
• Transparent cover
Colorless
• Cable space cover
RAL 7035, light gray
Ambient temperature in °C
–40 ... +55
Busbars
• Rated current in A
250
400
630
1000
• Bar dimensions
- Main conductor L1, L2, L3 in mm
12 × 5
20 × 8
2 × 20 × 8
2 × 30 × 10
- N and PE bar in mm
12 × 5
20 × 8
20 × 8
30 × 10
• Infeed
- Single-sided in A
250
400
630
1000
- Centered in A
400
800
1000
1800
Short-circuit strength of the busbar
• Rated current at 85 °C bar temperature in A
250
400
630
1000
• Max. spacing of busbar supports
- 307 mm I
cw
(1 s) in kA
10
20
30
40
- 307 mm I
pk
in kA
40
70
70
80
- 614 mm I
cw
(1 s) in kA
10
20
30
30
- 614 mm I
pk
in kA
40
70
70
60
© Siemens AG 2008
