Eaton
Residual current circuit breaker with overcurrent 40A B Type-F
Part numberMB-300129EAN / GTIN9010238805972HS code8536.90
Electrical Components
RCDs & RCBOs
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Product Description
Eaton MB-300129 NmRB6-40/2/B/003-F.
Technical Specifications
- Manufacturer part number (MPN)
- MB-300129
- EAN / GTIN
- 9010238805972
- HS code
- 8536.90
- Sales unit
- pcs
- Rated current
- 40 A
- Number of poles (total)
- 2
- Number of protected poles
- 2
- Rated voltage
- 230 V
- Rated insulation voltage Ui
- 250 V
- Rated impulse withstand voltage Uimp
- 4 kV
- Rated fault current
- 0.03 A
- Leakage current type
- F
- Current limiting class
- 3
- Rated short-circuit breaking capacity according to EN 61009
- 6 kA
- Disconnection characteristic
- Short-time delayed
- Surge current capacity
- 3 kA
- Voltage type
- AC
- Frequency
- 50 Hz
- Release characteristic
- B
- Concurrently switching neutral conductor
- No
- With interlocking device
- No
- Overvoltage category
- 3
- Pollution degree
- 2
- Ambient temperature during operating
- -25–40 °C
- Width in number of modular spacings
- 2
- Built-in depth
- 70 mm
- Anti-nuisance tripping version
- No
- Degree of protection (IP)
- IP20
- Connectable conductor cross section solid-core
- 1–25 mm²
- Connectable conductor cross section multi-wired
- 1–25 mm²
- Flush-mounted installation
- No
- Mounting method
- DIN rail
- Country of origin
- Romania
Standards & Compliance
- HS Code
- 8536.90
Cross References
- EAN 9010238805972
- SAP 1200402298
- Code 82429352
Product Documentation
Document preview: Residual current circuit breaker with overcurrent 40A B Type-F (MB-300129) — Specification sheet
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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 MB-300129?
- MB-300129 can be ordered from cballast.com as a Eaton 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 Eaton product?
- The manufacturer part number is MB-300129.
- What is the HS code for MB-300129?
- The customs tariff (HS) code for MB-300129 is 8536.90.
- Who manufactures MB-300129?
- MB-300129 is a Eaton product in the Electrical Components range.
- Is a datasheet available for MB-300129?
- Yes — the MB-300129 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for MB-300129?
- The minimum order quantity is 1.
- Is MB-300129 available?
- Yes — MB-300129 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).