140 / 582
BETA Protecting
Residual Current Protective Devices
Busbars
2/32
Siemens ET B1 · 10/2008
2
*
You can order this quantity or a multiple thereof.
■
Technical specifications
5
ST3, 5ST2
Standards
EN 60439-1 (VDE 0660-500): 2005-01
Busbar material
SF-Cu F 24
Partition material
Plastic, Cycoloy 3600
Heat-resistant to more than 90 °C flame-retardant and self-extinguishing,
dioxin and halogen-free
Rated operational voltage U
e
V AC 400
Rated current
I
n
•
Cross-section 10 mm
2
A 63
•
Cross-section 16 mm
2
A 80
Rated impulse withstand voltage U
imp
kV 4
Test pulse voltage (1.2/50)
kV 6.2
Rated conditional short-circuit current
I
cc
kA 25
Resistance to climate
•
Constant atmosphere
Acc. to DIN 50015
23/83; 40/92; 55/20
•
Humid heat
Acc. to IEC 68-2-30
28
cycles
Insulation coordination
Acc. to IEC 664
(
VDE 0110-1)
•
Overvoltage category
III
•
Degree of pollution
2
Maximum busbar current
I
S
/
phase
•
Infeed at the start of the busbar
-
Cross-section 10 mm
2
A 63
-
Cross-section 16 mm
2
A 80
•
Infeed at the center of the busbar
-
Cross-section 10 mm
2
A 100
-
Cross-section 16 mm
2
A 130
Infeed at the busbar end
Infeed near the busbar end or at the busbar center
The sum of the output current per branch (1, 2, 3 ... n) must not be greater
than the max. busbar current
I
S
/
phase
S
I2_13755
S
S
3
2
1
1
2
3
I2_13754a
© Siemens AG 2008