Schneider Electric 18783
MPN18783
Obsolete
Miniature circuit breaker (MCB), Acti9 NG125L, 1P, 50A, C curve, 50kA (IEC/EN 60947-2)
$46.18Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product name | Acti9 NG125 |
| Product / component type | Miniature circuit-breaker |
| Product range | Acti9 |
| Device short name | NG125L |
| Poles description | 1P |
| Number of protected poles | 1 |
| Device application | Distribution |
Electrical & Protection
| Parameter | Value |
|---|---|
| Rated current (In) | 50 A at 40 °C |
| Rated operational voltage (Ue) | 380...415 V AC 50/60 Hz 125 V DC 12 V DC 220...240 V AC 50/60 Hz 110...130 V AC 50/60 Hz |
| Tripping curve code | C |
| Magnetic tripping limit | 8 x In +/- 20 % |
| Breaking capacity (Icu / AIR) | 50 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 100 kA Icu at 110...130 V AC 50/60 Hz conforming to EN/IEC 60947-2 50 kA Icu at 12 V DC conforming to EN/IEC 60947-2 50 kA Icu at 125 V DC conforming to EN/IEC 60947-2 36 kA Icu at 12.5 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| Network type (AC/DC) | DC AC |
| Network frequency | 50/60 Hz |
| Overvoltage category | IV |
| Trip unit technology | Thermal-magnetic |
| Control / actuation type | Manual tripping test Toggle |
| Mechanical durability (cycles) | 20000 cycles |
Mounting & Connection
| Parameter | Value |
|---|---|
| Terminal connections / wire range | Tunnel type terminals1.5...50 mm² rigid Tunnel type terminals1...35 mm² flexible |
| Mounting support | 35 mm symmetrical DIN rail |
| Mounting position | Vertical |
| Mounting mode | Clip-on |
| Width | 27 mm |
| Height | 103 mm |
| Depth | 81 mm |
| Tightening torque (by circuit) | 3.5 N.m |
Environmental
| Parameter | Value |
|---|---|
| Operating ambient temperature | -30...70 °C |
| Storage ambient temperature | -40...70 °C |
| IP degree of protection | IP20 conforming to IEC 60529 |
Approvals
| Parameter | Value |
|---|---|
| Conformity standards | EN/IEC 60947-2 |
Electrical
| Parameter | Value |
|---|---|
| [Ui] rated insulation voltage | 690 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| [Uimp] rated impulse withstand voltage | 8 kV conforming to EN/IEC 60947-2 |
MPN
18783