Schneider Electric NSX100N Fixed Circuit Breaker | Replacement, Equivalent & Selection Guide
The Schneider Electric NSX100N is a 100A, 3-pole molded case circuit breaker (MCCB) from the industry-leading Compact NSX series. Designed for industrial power distribution panels, it delivers reliable overcurrent and short-circuit protection in a compact, fixed-mount form factor. This page provides full technical specifications, compatible replacement models, equivalent alternatives, and a structured selection guide to help engineers and procurement teams make the right choice.
Technical Specifications
- Model / SKU: NSX100N
- Brand: Schneider Electric
- Series: Compact NSX
- Type: Fixed Molded Case Circuit Breaker (MCCB)
- Rated Current (In): 100 A
- Poles: 3P
- Rated Voltage (Ue): 690 V AC / 500 V DC
- Breaking Capacity (Icu) @ 415V: 50 kA
- Breaking Capacity (Ics): 100% Icu
- Mounting: Fixed (non-withdrawable)
- Protection Class: IP40 (front face)
- Standards: IEC 60947-2, EN 60947-2
- Weight: 1.28 kg
- Country of Origin: France / China (varies by production batch)
Compatible Replacement & Equivalent Models
When the NSX100N is unavailable or out of budget, the following models offer compatible or equivalent performance. Always verify voltage, breaking capacity, and pole configuration before substitution.
- Schneider NSX100F – Same frame, lower breaking capacity (36 kA @ 415V); suitable for lower fault-current environments
- Schneider NSX100H – Higher breaking capacity (70 kA @ 415V); direct upgrade for higher fault-current applications
- Schneider NSX100B – Economy-grade, 25 kA breaking capacity; suitable for light-duty distribution
- ABB Tmax T2N 100 – ABB equivalent, 3P 100A, 50 kA @ 415V; compatible in most IEC panel designs
- Siemens 3VA1110-4ED32 – Siemens MCCB equivalent, 100A 3P, 36 kA; check frame dimensions before retrofit
- Chint NM8-125S/3300 – Cost-effective alternative, 100A 3P, 50 kA; widely used in OEM panels
- Delixi CDM3-100M/3300 – Chinese-market equivalent, 100A 3P; verify terminal compatibility
Why Choose the Original NSX100N
- Proven reliability: Compact NSX series has 30+ years of global field deployment in industrial environments
- Full IEC compliance: Certified to IEC 60947-2 with 100% Ics rating — no derating required
- Accessory ecosystem: Compatible with Schneider’s full range of NSX accessories — auxiliary contacts, motor operators, earth leakage modules, and more
- Consistent breaking performance: 50 kA Icu @ 415V ensures protection in high fault-current industrial networks
- Compact footprint: Optimized for space-constrained distribution boards
Typical Applications
- Industrial power distribution panels and MCC (Motor Control Centers)
- Main circuit protection for motors up to 45 kW (400V)
- Feeder protection in commercial buildings and factories
- Generator output protection and ATS (Automatic Transfer Switch) systems
- OEM machine control panels requiring IEC-certified protection
System Compatibility
- Busbar systems: Compatible with Schneider Linergy and standard 60mm pitch busbars
- Accessories: Supports OF/SD/SDE auxiliary contacts, MN/MX voltage releases, rotary handle kits, and NSX earth leakage add-ons
- Communication: Compatible with Micrologic trip units for Modbus/Ethernet integration (when upgraded)
- DIN rail / panel mount: Fixed chassis; requires panel cutout per Schneider dimensional drawing
Selection Guide
Use the table below to select the correct NSX variant for your application:
| Model | Icu @ 415V | Ics | Best For |
|---|---|---|---|
| NSX100B | 25 kA | 100% | Light commercial distribution |
| NSX100F | 36 kA | 100% | Standard industrial panels |
| NSX100N | 50 kA | 100% | High fault-current industrial networks |
| NSX100H | 70 kA | 100% | Heavy industrial / utility-grade |
| NSX100S | 100 kA | 100% | Critical infrastructure / switchgear |
Tip: Always select based on the prospective short-circuit current (Icc) at the installation point, not just the rated current.
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified OEM channels
- Each unit inspected for label authenticity, serial number traceability, and packaging integrity
- Certificates of conformity (CoC) and test reports available upon request
- Genuine Schneider Electric products — no counterfeit, refurbished, or grey-market stock
- Stored in climate-controlled warehouse; shipped with anti-static and moisture-proof packaging
How to Order
- Confirm your required breaking capacity (Icu) and rated current
- Verify pole configuration (3P standard; 4P available on request)
- Add NSX100N to cart or contact us for bulk/project pricing
- Provide your project specs for a free compatibility review
- Orders ship within 1–3 business days; expedited shipping available
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📞 Phone/WhatsApp: +0086 19859288691
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Replacement & Compatibility FAQ
Q: Can I replace NSX100N with NSX100F?
A: Yes, if your installation’s prospective fault current does not exceed 36 kA. The NSX100F has a lower breaking capacity but is otherwise dimensionally and electrically compatible.
Q: Is the NSX100N compatible with Micrologic trip units?
A: The fixed NSX100N uses a thermal-magnetic trip unit. Micrologic electronic trip units are available on the NSX100 withdrawable (plug-in) variants.
Q: Can ABB T2N 100 replace Schneider NSX100N directly?
A: Electrically compatible in most cases, but terminal dimensions and accessory mounting differ. A panel modification may be required.
Q: What is the difference between NSX100N fixed and plug-in versions?
A: The fixed version is bolted directly to the panel busbar. The plug-in (withdrawable) version allows removal without disconnecting cables — preferred for maintenance-critical applications.
Q: Do you provide bulk pricing for project orders?
A: Yes. Contact us with your BOM or project quantity for a competitive quote within 24 hours.
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