The C125N45EFM is a Schneider Electric ComPacT NS new generation 4-pole moulded-case circuit breaker with a MicroLogic 5.0 E electronic trip unit, rated 1250 A at 50 °C. The MicroLogic 5.0 E provides L (long-time overload), S (short-time short-circuit), and I (instantaneous) protection curves, plus an integrated energy meter for distribution monitoring. The 85 kA Icu at 220/240 V AC and 50 kA Icu at 415 V AC (per IEC 60947-2) define the maximum fault current the breaker can safely interrupt without damage — critical for verifying SCCR coordination in the panel. With IP40 protection and IK07 impact rating, it suits indoor switchboard mounting where dust and light mechanical contact are expected, but not washdown environments.
C125N45EFM ComPacT NS 1250A 4P MCCB, MicroLogic 5.0 E, 85 kA
MPNC125N45EFM
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Schneider Electric ComPacT NS new generation, C125N45EFM, 4-pole MCCB, 1250 A at 50 °C, MicroLogic 5.0 E electronic trip unit, 85 kA Icu at 220/240 V AC, fixed mount, front connection.
$3,381.39Ref. price · indicative, final on quote
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 |
|---|---|
| Product / component type | Circuit breaker |
| Device application | Distribution |
| Parameter | Value |
|---|---|
| Number of poles | 4P |
| Parameter | Value |
|---|---|
| [In] rated current | 1250 A at 50 °C |
| Breaking capacity | 85 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 40 kA Icu at 500/525 V AC 50/60 Hz conforming to IEC 60947-2 30 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 |
| [Ics] rated service breaking capacity | 50 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 40 kA at 500/525 V AC 50/60 Hz conforming to IEC 60947-2 30 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| [Ui] rated insulation voltage | 800 V AC 50/60 Hz conforming to IEC 60947-2 |
| Parameter | Value |
|---|---|
| Trip unit name | MicroLogic 5.0 E |
| Trip unit technology | Electronic |
| Standards | EN/IEC 60947-2 |
Product details
Frequently asked questions
What are the key ratings of C125N45EFM?
Rated 1250 A at 50 °C, 4-pole, MicroLogic 5.0 E trip unit with LSI protection, breaking capacity 85 kA Icu at 220/240 V AC and 50 kA Icu at 415 V AC, IP40, IK07.
What standards does C125N45EFM comply with?
It complies with EN/IEC 60947-2 for circuit-breaker performance and safety.
MPN
C125N45EFM