Schneider Electric 18603
MPN18603
Obsolete
NG125 - circuit breaker - NG125A - 3P - 80A - C curve
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Product / component type | Miniature circuit-breaker |
| Product name | Acti9 NG125 |
| Product range | Acti9 |
| Device application | Distribution |
| Parameter | Value |
|---|---|
| Network type (AC/DC) | DC AC |
| Rated current [In] | 80 A at 40 °C |
| Rated operational voltage [Ue] | 380...415 V AC 50/60 Hz 500 V AC 50/60 Hz |
| Rated insulation voltage [Ui] | 690 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| Rated impulse withstand voltage [Uimp] | 8 kV conforming to EN/IEC 60947-2 |
| Network frequency | 50/60 Hz |
| Poles description | 3P |
| Magnetic tripping limit | 8 x In |
| Parameter | Value |
|---|---|
| Breaking capacity | 16 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 8 kA Icu at 500 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA Icu at <= 375 V DC conforming to EN/IEC 60947-2 |
| Rated service breaking capacity [Ics] | 12 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 6 kA 75 % conforming to EN/IEC 60947-2 - 500 V AC 50/60 Hz 20 kA 100 % conforming to EN/IEC 60947-2 - 375 V DC |
| Trip unit technology | Thermal-magnetic |
| Earth-leakage protection | Separate block |
| Suitability for isolation | Yes conforming to IEC 60947-2 |
| Utilisation category | Category A conforming to IEC 60947-2 |
| Mechanical durability | 20000 cycles |
| Electrical durability | 5000 cycles |
| Local signalling | ON/OFF indication Trip indicator |
| Contact position indicator | Yes |
| Parameter | Value |
|---|---|
| Connections / terminals | Tunnel type terminals16...70 mm² rigid Tunnel type terminals10...50 mm² flexible |
| Device short name | NG125a |
| Control type | Toggle Manual tripping test |
| Mounting mode | Clip-on |
| Mounting support | 35 mm symmetrical DIN rail |
| Usable 9 mm pitches | 9 |
| Width | 81 mm |
| Height | 103 mm |
| Depth | 81 mm |
| Parameter | Value |
|---|---|
| IP degree of protection | IP20 conforming to IEC 60529 |
| IK degree of protection | IK05 conforming to EN/IEC 62262 |
| Pollution degree | 3 conforming to IEC 60947-2 |
| Operating ambient air temperature | -30...70 °C |
| Storage ambient air temperature | -40...70 °C |
| Parameter | Value |
|---|---|
| Standards | EN/IEC 60947-2 |
| Parameter | Value |
|---|---|
| Curve code | C |
| Number of protected poles | 3 |
MPN
18603