1.2.2. Altitude of installation
≤ 2,000 m. In order to apply the ABW circuit breakers in altitudes above 2,000 m,
apply the nominal current and voltage reduction factors presented in the table
below.
Altitude (m)
Insulation voltage (V)
Maximum operational voltage (V)
Current correction factor
1.2.3. relative humidity
≤ 85% @ 40 ºC.
≤ 90% @ 20 ºC.
1.2.4. presence of gases
H
S ≤ 0.01 ppm; SO
2
1.2.5. Installation - minimum instalation distance and insulation voltage
note!
The aforesaid minimum distances also apply to the accessories
installed at the side of the circuit breaker, such as the mechanical interlocking
and modules.
Insulation voltage (ui)
2,000
1,000
690
1 x In
≤ 0.01 ppm.
2
Minimum insulation of distance x (mm)
600 V
1,000 V
3,000
4,000
900
700
590
520
0.99 x In
0.96 x In
type
Fixed
Draw
out
** Option installation: "0"
8
14
ABW - Air Circuit Breaker
www.weg.net
5,000
600
460
0.94 x In
A
B
N/S
50
150
H
50
150
150
N/S
50
**
H
50
0
9