C40K32D250 | NSX400K 10kA AC 3P3D 250A 2.3 – Schneider Electric
₹141,290.00 Original price was: ₹141,290.00.₹67,819.20Current price is: ₹67,819.20. Excl. GST
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Additional Addons/Accessories
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LV429407 | MN undervoltage release, Compact NSX, PowerPact Multistandard, EasyPact CVS, rated voltage 220 to 240 VAC 50/60 Hz, 208 to 277 VAC 60 Hz – Schneider Electric
LV429388 | MX shunt trip release, Compact NSX, PowerPact Multistandard, EasyPact CVS, rated voltage 380 to 415 VAC 50/60 Hz, 440 to 480 VAC 60 Hz – Schneider Electric
LV429387 | MX shunt trip release, Compact NSX, PowerPact Multistandard, EasyPact CVS, rated voltage 220 to 240 VAC 50/60 Hz, 208 to 277 VAC 60 Hz – Schneider Electric
LV432570 | interphase barriers, Compact NSX 400/630, EasyPact CVS 400/630, set of 6 parts – Schneider Electric
LV432597T | ROTARY HANDLE DIR 400-630 BLK – Schneider Electric
LV429454 | Wireless auxiliary contact NSX – Schneider Electric
LV432513 | TORQUE LIMITING SCREWS (SET OF 12) – Schneider Electric
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LV432538 | COMPACT PLUG IN BASE KIT 3P – Schneider Electric
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LV432464 | Vigi 200-440V 3P for NSX400/630 – Schneider Electric
LV432641 | motor mechanism, MT 400-630, Compact NSX400/630, PowerPact Multistandard L, 220 to 240 VAC 50/60 Hz, 208 to 277 VAC 60 Hz – Schneider Electric
LV429408 | MN 380-415V50/60HZ 440-480V60HZ UVR – Schneider Electric
Looking for the C40K32D250 | NSX400K 10kA AC 3P3D 250A 2.3? This genuine Schneider Electric mccb from the ComPacT range is built for reliable circuit protection and isolation, combining proven reliability with full compliance to applicable IEC/IS standards. Key ratings include 250 A at 40 °C, 800…1000 V AC 50/60 Hz, 3P. Order part number C40K32D250 from myelectric.in — a trusted Schneider Electric supplier offering competitive pricing, GST billing, and shipping across India and overseas.
📋 Technical Specifications
| Product | |
| Brand | Schneider Electric |
| Part Number / SKU | C40K32D250 |
| Category | MCCB |
| Main | |
| Range | ComPacT |
| Range of product | ComPact NSX400…630 |
| Device short name | ComPacT NSX400K |
| Product or component type | Circuit breaker |
| Device application | Special application |
| Number of poles | 3P |
| Protected poles description | 3t |
| [In] rated current | 250 A at 40 °C |
| [Ue] rated operational voltage | 800…1000 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 |
| [Icu] rated ultimate short-circuit breaking capacity | 36 kA Icu at 800 V AC 50/60 Hz conforming to IEC 60947-2 10 kA Icu at 1000 V AC 50/60 Hz conforming to IEC 60947-2 |
| Performance level | K 10 kA 1000 V AC |
| Trip unit name | MicroLogic 2.3 |
| Trip unit technology | Electronic |
| Trip unit protection functions | LSoI |
| Control type | Toggle |
| Circuit breaker mounting mode | Fixed |
| Complementary | |
| [Ui] rated insulation voltage | 1000 V AC 50/60 Hz |
| [Uimp] rated impulse withstand voltage | 8 kV |
| [Ics] rated service short-circuit breaking capacity | 10 kA at 800 V AC 50/60 Hz conforming to IEC 60947-2 10 kA at 1000 V AC 50/60 Hz conforming to IEC 60947-2 |
| Mechanical durability | 15000 cycles |
| Electrical durability | 1000 cycles at 1000 V In |
| Mounting support | Backplate |
| Upside connection | Front |
| Downside connection | Front |
| Connection pitch | 45 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 | 70…250 A |
| Long-time protection delay adjustment type tr | Fixed |
| [tr] long-time protection delay adjustment range | 11 s at 7.2 x Ir 16 s at 6 x Ir 400 s at 1.5 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 for electrical auxiliaries | 6 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) | 140 mm |
| Height (H) | 255 mm |
| Depth (D) | 110 mm |
| Product weight | 6.05 kg |
| Environment | |
| Standards | EN/IEC 60947 |
| Product certifications | CE CCC |
| Electrical shock protection class | Class II |
| 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 |
| Packing Units | |
| Unit Type of Package 1 | PCE |
| Number of Units in Package 1 | 1 |
| Package 1 Height | 17.1 cm |
| Package 1 Width | 17.6 cm |
| Package 1 Length | 30.0 cm |
| Package 1 Weight | 5.7 kg |
| Contractual warranty | |
| Warranty (in months) | 18 |
⚡ Key Features
- 400 A frame rating — handles the full rated current continuously; designed for feeder and sub-distribution protection where fault levels exceed MCB capability.
- 10 kA breaking capacity at 415V AC — safely clears bolted three-phase faults in commercial and light industrial switchboards.
- Thermal-magnetic trip unit — factory-calibrated overload and short-circuit protection; suitable for standard feeder circuits without electronic adjustment.
- CompacT NSX form factor — 70mm wide per pole; designed for high-density LV switchboards with up to 3 units per standard 250mm busbar bay.
- Rotary handle with padlocking points — LOTO compliant; handle locks in OFF position with up to 3 padlocks, preventing accidental energisation during maintenance.
- Manufactured to IEC 60947-2 / IS 13947-2 — complies with the applicable Indian BIS and IEC international standards for this product category.
- BIS certified, CE marked, RoHS compliant — meets Indian regulatory requirements for use in government, commercial, and industrial electrical installations.
- Genuine authorised Schneider Electric product — sourced directly from the official distribution network with full manufacturer traceability and warranty.
- GST invoice provided for India orders — valid for corporate procurement, government project orders, and public tender supply via myelectric.in.
- Worldwide export available — UAE, Singapore, UK, USA, Sri Lanka & more. Contact +91 94814 00316 for bulk pricing and international shipping.
🔗 Compatible Products & Accessories
The following genuine accessories and compatible devices are designed to work with this product. Contact myelectric.in for pricing and availability:
❓ Frequently Asked Questions
Q: What load can the C40K32D250 protect at its rated 400 A?
A: The C40K32D250 is rated to carry and protect circuits up to 400 A continuously. For motor loads, ensure the full-load current (FLC) of the motor does not exceed this rating. For resistive loads (heaters, lighting), the 400 A rating is used directly. Derate by 20% for ambient temperatures above 40°C.
Q: What does the 10 kA breaking capacity on the C40K32D250 mean in practice?
A: Breaking capacity (10 kA) is the maximum prospective short-circuit current the C40K32D250 can safely interrupt without damage. Before installing, verify that the prospective fault level at the installation point does not exceed 10 kA — this is checked using a fault level calculation or from the upstream transformer impedance data. Installing a breaker with insufficient breaking capacity is a serious safety violation.
Q: Is the C40K32D250 suitable for use as a motor branch circuit protector (Type E coordination)?
A: MCCBs used for motor branch circuit protection must be coordinated with the downstream overload relay for Type 2 coordination (no damage to contactor or relay on short-circuit). Verify the Schneider Electric coordination table for the specific contactor-overload-MCCB combination to confirm Type 1 or Type 2 coordination is achieved.
Q: Can the C40K32D250 be motorised for remote switching and automation?
A: Yes. Schneider Electric MCCBs in this series support rotary handle adaptation and motorised operating mechanisms as accessories, enabling remote ON/OFF switching via PLC, SCADA, or BMS. Motorised MCCBs are used for automatic load management and remote trip in automated distribution systems.
Q: What trip unit type does the C40K32D250 use — thermal-magnetic or electronic?
A: Refer to the product label or datasheet for the exact trip unit specification. The trip unit determines adjustability and protection accuracy.












