Schneider Electric 18721
MPN18721
Obsolete
Miniature circuit breaker (MCB), Acti9 NG125H, 2P, 63A, C curve, 36kA (IEC/EN 60947-2)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Control type | Manual tripping test Toggle |
| Network type | DC AC |
| Product or component type | Miniature circuit-breaker |
| Voltage | 690 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| [Ue] rated operational voltage | 380...415 V AC 50/60 Hz 500 V AC 50/60 Hz 220...240 V AC 50/60 Hz 440 V AC 50/60 Hz <= 250 V DC |
| [Uimp] rated impulse withstand voltage | 8 kV conforming to EN/IEC 60947-2 |
| Breaking capacity | 12 kA Icu at 500 V AC 50/60 Hz conforming to EN/IEC 60947-2 30 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 36 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 70 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 25 kA Icu at <= 250 V DC conforming to EN/IEC 60947-2 |
| Current | 63 A at 40 °C |
| [Ics] rated service breaking capacity | 52.5 kA 75 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 27 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 22.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 9 kA 75 % conforming to EN/IEC 60947-2 - 500 V AC 50/60 Hz 25 kA 100 % conforming to EN/IEC 60947-2 - <= 250 V DC |
| Network frequency | 50/60 Hz |
| Poles description | 2P |
| Number of protected poles | 2 |
All specifications
| Parameter | Value |
|---|---|
| Utilisation category | Category A conforming to IEC 60947-2 |
| IK degree of protection | IK05 conforming to EN/IEC 62262 |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Mounting mode | Clip-on |
| Mounting support | 35 mm symmetrical DIN rail |
| Mounting position | Vertical |
| Wire stripping length | 20 mm |
| Connections - terminals | Tunnel type terminals1.5...50 mm² rigid Tunnel type terminals1...35 mm² flexible |
| Pollution degree | 3 conforming to IEC 60947-2 |
| Relative humidity | 95 % at 55 °C |
| Depth | 81 mm |
| Width | 54 mm |
| Height | 103 mm |
| Electrical durability | 10000 cycles |
| Mechanical durability | 20000 cycles |
| Standards | EN/IEC 60947-2 |
| Range | Acti9 |
| Curve code | C |
| 9 mm pitches | 6 |
| Tropicalisation | 2 conforming to IEC 60068-1 |
| Local signalling | ON/OFF indication Trip indicator |
| Device short name | NG125H |
| Tightening torque | 3.5 N.m |
| Device application | Distribution |
| Overvoltage category | IV |
| Trip unit technology | Thermal-magnetic |
| Magnetic tripping limit | 8 x In +/- 20 % |
| Earth-leakage protection | Separate block |
| Provision for padlocking | Padlockable |
| Suitability for isolation | Yes conforming to IEC 60947-2 |
| Contact position indicator | Yes |
| Locking options description | Integrated padlocking |
| Ambient air temperature for storage | -40...70 °C |
| Ambient air temperature for operation | -30...70 °C |
| Comb busbar and distribution block compatibility | YES |
MPN
18721