Schneider Electric A9N18355
MPNA9N18355
Active
Miniature circuit breaker (MCB), Acti9 C120N, 4P, 125A, B curve, 10000A (IEC/EN 60898-1), 10kA (IEC/EN 60947-2)
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product name | Acti9 C120 |
| Product range | Acti9 |
| Product/component type | Miniature circuit-breaker |
| Device application | Distribution |
Ratings
| Parameter | Value |
|---|---|
| Rated current (In) | 125 A at 30 °C |
| Poles configuration | 4P |
| Number of protected poles | 4 |
| Breaking capacity | 10000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1 6 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at <= 500 V DC conforming to EN/IEC 60947-2 |
| Rated service breaking capacity (Ics) | 7500 A 75 % conforming to EN/IEC 60898-1 - 400 V AC 50/60 Hz 4.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 7.5 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 15 kA 75 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 10 kA 100 % conforming to EN/IEC 60947-2 - <= 500 V DC |
| Rated operational voltage (Ue) | 380...415 V AC 50/60 Hz 220...240 V AC 50/60 Hz 440 V AC 50/60 Hz 230...400 V AC 50/60 Hz |
| Rated insulation voltage (Ui) | 500 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| Rated impulse withstand voltage (Uimp) | 6 kV conforming to EN/IEC 60947-2 |
| Network type (AC/DC) | AC |
| Network frequency | 50/60 Hz |
| Overvoltage category | IV |
Protection
| Parameter | Value |
|---|---|
| Curve code | B |
| Trip unit technology | Thermal-magnetic |
| Magnetic tripping limit | 3...5 x In |
| Earth-leakage protection | Separate block |
| Suitability for isolation | Yes conforming to IEC 60947-2 |
| Limitation class | 3 conforming to EN/IEC 60947-2 |
| Electrical durability (cycles) | 5000 cycles conforming to IEC 60947-2 |
| Mechanical durability (cycles) | 20000 cycles |
Mechanical
| Parameter | Value |
|---|---|
| Mounting support | 35 mm symmetrical DIN rail |
| Mounting mode | Clip-on |
| Control type | Toggle |
| Terminal connection type | Tunnel type terminals1...50 mm² rigid Tunnel type terminals1.5...35 mm² flexible |
| Terminal tightening torque | 3.5 N.m |
| Wire stripping length | 15 mm |
| Contact position indicator | Yes |
| Local signalling/indication | ON/OFF indication |
| Width | 108 mm |
| Height | 81 mm |
| Depth | 73 mm |
| Number of 9 mm pitches | 12 |
Environmental
| Parameter | Value |
|---|---|
| Operating ambient temperature | -25...70 °C |
| Storage ambient temperature | -40...85 °C |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Pollution degree | 3 conforming to IEC 60947-2 |
| Relative humidity | 95 % at 55 °C |
| Tropicalisation class | 2 conforming to IEC 60068-1 |
Approvals
| Parameter | Value |
|---|---|
| Standards | EN/IEC 60947-2 EN/IEC 60898-1 |
MPN
A9N18355