Types of Molded Case Circuit Breakers: MCCB Guide for Engineers
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- Part number
- C25N32D250
- Model no
- NSX250N
Schneider Electric C25N32D250 ComPacT NSX250N 3P 250 A 50 kA MicroLogic 2.2 Fixed Moulded Case Circuit Breaker
Schneider Electric C25N32D250 ComPacT NSX250N 3P 250A MicroLogic 2.2, 50 kA at 415 V AC.
Description
About the NSX250N
About the NSX250N
The C25N32D250 is a 3-pole Schneider Electric ComPacT NSX250N moulded case circuit breaker rated 250 A, with an electronic MicroLogic 2.2 trip unit and 50 kA breaking capacity (Icu) at 380/415 V AC. Rated operational voltage (Ue) is 690 V AC. The MicroLogic 2.2 adds adjustable long-time and short-time protection on top of the fixed instantaneous stage.
Certifications & Standards
- EN/IEC 60947-2
Selection Notes
The C25N32D250's 100...250 A long-time adjustment lets the breaker be set below its 250 A frame rating to match the feeder cable, and the 1.5...10 x Ir short-time delay gives it the selective-coordination stage that the TM-D breakers in this NSX250 range lack. Where that short-time stage is not needed, the TM-D 250 A variant in the H-rated 70 kA frame covers the same current with simpler, non-electronic protection and higher Icu.
Specification
Full specification
Main 20
| Range | ComPacT |
|---|---|
| Product name | ComPacT NSX |
| Device short name | NSX250N |
| Product or component type | Circuit breaker |
| Device application | Distribution |
| Poles description | 3P |
| Protected poles description | 3D |
| [In] rated current | 250 A at 40 °C |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| Network type | AC |
| Network frequency | 50/60 Hz |
| Suitability for isolation | Yes conforming to EN/IEC 60947-2 |
| Utilisation category | Category A |
| Breaking capacity | 90 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, 36 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2, 35 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2, 10 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2, 85 kA Icu at 240 V AC 50/60 Hz conforming to UL 60947-4-1, 50 kA Icu at 480 V AC 50/60 Hz conforming to UL 60947-4-1, 15 kA Icu at 600 V AC 50/60 Hz conforming to UL 60947-4-1 |
| Breaking capacity code | N 50 kA 415 V AC |
| Trip unit name | MicroLogic 2.2 |
| Trip unit technology | Electronic |
| Trip unit protection functions | LSoI |
| Control type | Toggle |
| Circuit breaker mounting mode | Fixed |
Complementary 31
| [Ui] rated insulation voltage | 800 V AC 50/60 Hz |
|---|---|
| [Uimp] rated impulse withstand voltage | 8 kV |
| [Ics] rated service breaking capacity | 90 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, 36 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2, 35 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2, 10 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 |
| Mechanical durability | 20000 cycles |
| Electrical durability | 20000 cycles at 440 V In/2, 10000 cycles at 440 V In, 10000 cycles at 690 V In/2, 5000 cycles at 690 V In |
| Power dissipation per pole | 17.6 W |
| Mounting support | Backplate |
| Mounting position | Horizontal and vertical, Flat on the back |
| Upside connection | Front |
| Downside connection | Front |
| Connection pitch | 35 mm |
| Protection type | L : for overload protection (long time), So : for short time short-circuit protection with fixed delay, I : for instantaneous short-circuit protection |
| Trip unit rating | 250 A at 40 °C |
| Long-time pick-up adjustment type Ir (thermal protection) | Adjustable 9 settings |
| [Ir] long-time protection pick-up adjustment range | 100...250 A |
| Long-time protection delay adjustment type tr | Fixed |
| [tr] long-time delay adjustment range | 400 s at 1.5 x Ir, 16 s at 6 x Ir, 11 s at 7.2 x Ir |
| Thermal memory | 20 minutes before and after tripping |
| Short-time protection pick-up adjustment type Isd | Adjustable 9 settings |
| [Isd] Short-time protection pick-up adjustment range | 1.5...10 x Ir |
| Short-time protection delay adjustment type tsd | Fixed |
| Instantaneous protection pick-up adjustment type Ii | Fixed |
| [Ii] instantaneous protection pick-up adjustment range | 3000 A |
| Earth-leakage protection | Without |
| Zone selective interlocking ZSI | Without |
| Number of slots | 5 slot(s) |
| Local signalling | Flashing LED (green) for ready to operate, LED 105 % Ir (red) for overload, LED 90 % Ir (orange) for overload |
| Width (W) | 105 mm |
| Height (H) | 161 mm |
| Depth (D) | 86 mm |
| Net weight | 2.4 kg |
Environment 10
| Standards | EN/IEC 60947-2 |
|---|---|
| Overvoltage category | III |
| Electrical shock protection class | Class II on front face |
| Pollution degree | 3 conforming to IEC 60664-1 |
| IP degree of protection | IP40 conforming to IEC 60529 |
| IK degree of protection | IK07 conforming to IEC 62262 |
| Ambient air temperature for operation | -25…70 °C |
| Ambient air temperature for storage | -50…85 °C |
| Relative humidity | 0…95 % |
| Operating altitude | 0...2000 m without derating, 2000 m...5000 m with derating |
Show all 85 specifications ↓ Show less ↑24 more values in Identification, Contractual warranty, Logistics.
Identification 7
| Part number | C25N32D250 |
|---|---|
| Type designation | NSX250N |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 16
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 14.000 cm |
| Package 1 Width | 11.000 cm |
| Package 1 Length | 19.200 cm |
| Package 1 Weight | 1.978 kg |
| Unit Type of Package 2 | S03 |
| Number of Units in Package 2 | 7 |
| Package 2 Height | 30.000 cm |
| Package 2 Width | 30.000 cm |
| Package 2 Length | 40.000 cm |
| Package 2 Weight | 14.227 kg |
| Shipping weight | 2.4 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for C25N32D250
No documents are on file for this part yet.
Ask us for the datasheet
Certifications
Certifications and standards
- EN/IEC 60947-2
Quick answers
Questions about the NSX250N
What is the rated current of NSX250N?
The rated current of NSX250N is 250 A.
Which supply voltage is NSX250N rated for?
The rated operational voltage of NSX250N is 690 V AC.
What is the HS code of NSX250N for customs?
The tariff (HS) code on file for NSX250N is 85362090.
Where does NSX250N ship from, and how fast?
NSX250N ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Guides
Guides for MCCB
How to Select the Right MCCB for Your Application: Engineer Checklist
Select the right MCCB with our engineer checklist covering IEC 60947-2, sizing, breaking capacity, trip units, and derating for industry. Shop at Stoklink.
IEC 60947-2 Standards for Molded Case Circuit Breakers Explained
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Reviews
Customer reviews
Series
Schneider Electric Schneider ComPacT NSX
- Brand
- Schneider Electric
- Series
- Schneider ComPacT NSX
