Schneider Electric manufactures the A9N18492 circuit breaker designed for a capacity of 125 A and 144 V DC. This robust component ensures reliable protection in electrical circuits by interrupting current flow in the event of overloads or short circuits. Typical applications include industrial and commercial electrical systems where safeguarding equipment and maintaining operational safety are essential.
| Type |
Circuit breaker |
| Tripping Characteristics |
D |
| Additional equipment possible |
true |
| Ambient temperature during operating |
-30 - 60°C |
| Built-in depth |
44mm |
| Concurrently switching neutral conductor |
false |
| Connectable conductor cross section multi-wired |
1 - 35mm² |
| Connectable conductor cross section solid-core |
1.5 - 50mm² |
| Current limiting class |
3 |
| Current Ratng |
125A |
| Degree of protection (IP) |
IP20 |
| Dim |
(L x W x H) 73 x 27 x 81 mm |
| Explosion-proof |
false |
| Factory colour |
White |
| Flush-mounted installation |
false |
| Frequency |
50 - 60Hz |
| Height |
81mm |
| Length |
73mm |
| Number of pins |
1 |
| Number of Poles |
1 |
| Number of poles (total) |
1 |
| Number of protected poles |
2 |
| Overvoltage category |
4 |
| Pollution degree |
3 |
| Power loss |
N/A |
| Rated current |
125A |
| Rated impulse withstand voltage Uimp |
6kV |
| Rated insulation voltage Ui |
500V |
| Rated short-circuit breaking capacity Icn according to EN 60898 at 230 V |
15kA |
| Rated short-circuit breaking capacity Icn according to EN 60898 at 400 V |
N/A |
| Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 230 V |
15kA |
| Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 400 V |
4.5kA |
| Rated voltage |
415V |
| Voltage Rating |
144V DC |
| Voltage type |
AC |
| Width |
27mm |
| Width in number of modular spacings |
1.5 |
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