Schneider Electric Circuit breaker basic frame, ComPacT NSX250B, 25KA/415VAC, 4 poles, 250A frame rating, without trip unit C25B4
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Product Description
Schneider Electric C25B4 Circuit breaker ComPacT NSX switch base NSX250B 4P without protection 250A 25kA/415VAC - 40kA/230VAC.
Technical Specifications
- Manufacturer part number (MPN)
- C25B4
- EAN / GTIN
- 3606481999863
- HS code
- 8536.90
- Sales unit
- pcs
- Package quantity
- 6 pcs
- Number of poles
- 4P
- Range
- ComPacT
- Product name
- ComPacT NSX
- Device short name
- NSX250B
- Product or component type
- Basic frame
- Device application
- Distribution
- Poles description
- 4P
- Neutral position
- Left
- [In] rated current
- 250 A at 40 °C
- [Ue] rated operational voltage
- 690 V AC 50/60 Hz conforming to IEC 60947-2
- Network type
- AC
- Network frequency
- 50/60 Hz
- Suitability for isolation
- Yes conforming to EN/IEC 60947-2
- Utilisation category
- Category A
- Breaking capacity
- 15 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2; 20 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2; 25 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2; 40 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
- Breaking capacity code
- B 25 kA 415 V AC
- Control type
- Toggle
- mounting mode
- Fixed
- [Ui] rated insulation voltage
- 800 V AC 50/60 Hz conforming to IEC 60947-2
- [Uimp] rated impulse withstand voltage
- 8 kV conforming to IEC 60947-2
- [Ics] rated service breaking capacity
- 20 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2; 25 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2; 40 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2; 15 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2
- Mechanical durability
- 20000 cycles conforming to IEC 60947-2
- Electrical durability
- 10000 cycles 440 V AC 50/60 Hz In conforming to IEC 60947-2; 10000 cycles 690 V AC 50/60 Hz In/2 conforming to IEC 60947-2; 20000 cycles 440 V AC 50/60 Hz In/2 conforming to IEC 60947-2; 5000 cycles 690 V AC 50/60 Hz In conforming to IEC 60947-2
- Mounting support
- Backplate
- Upside connection
- Front
- Downside connection
- Front
- Connection pitch
- 35 mm
- Protection type
- Without protection
- Width (W)
- 140 mm
- Height (H)
- 161 mm
- Depth (D)
- 86 mm
- Standards
- EN/IEC 60947-2; UL 60947-4-1
- 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
- Warranty (in months)
- 18
Standards & Compliance
- HS Code
- 8536.90
Cross References
- EAN 3606481999863
- SAP 1200533540
- Code 82686562
Product Documentation
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Technical guides
Catalogue entry last verified: 2026-09-29. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy C25B4?
- C25B4 can be ordered from cballast.com as a Schneider Electric catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Schneider Electric product?
- The manufacturer part number is C25B4.
- What is the HS code for C25B4?
- The customs tariff (HS) code for C25B4 is 8536.90.
- Who manufactures C25B4?
- C25B4 is a Schneider Electric product in the Electrical Components range.
- Is a datasheet available for C25B4?
- Yes — the C25B4 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for C25B4?
- The minimum order quantity is 1.
- Is C25B4 available?
- Yes — C25B4 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).