
Eaton
FAZ-C2/3N INST.AUT.3P+N-C-2A (278963)
Part number278963EAN / GTIN4015082789633HS code8536.90
Electrical Components
Miniature Circuit Breakers
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Product Description
Eaton 278963 Miniature circuit breaker (MCB), 2 A, 3p+N, characteristic: C.
Technical Specifications
- Manufacturer part number (MPN)
- 278963
- EAN / GTIN
- 4015082789633
- HS code
- 8536.90
- Sales unit
- pcs
- Package quantity
- 30 pcs
- Eaton catalogue number
- 278963
- Depth
- 80 mm
- Height
- 75.5 mm
- Width
- 72 mm
- Weight
- 0.43 kg
- Compliances
- RoHS conform
- Certifications
- IEC/EN 60898; IEC/EN 60947-2; EN45545-2; IEC 61373
- Current limiting class
- 3
- Features
- Concurrently switching N-neutral; Additional equipment possible
- Special features
- Ambient temperature hint: a 1 °C increase results in a 0.5% linear reduction of current carrying capacity
- Used with
- Miniature circuit breaker; FAZ
- Amperage Rating
- 2 A
- Application
- Switchgear for industrial and advanced commercial applications xEffect - Switchgear for industrial and advanced commercial applications
- Number of poles
- Three-pole + N
- Number of poles (protected)
- 3
- Number of poles (total)
- 4
- Release characteristic
- C
- Tripping characteristic
- C
- Type
- FAZ Miniature circuit breaker
- Ambient operating temperature - max
- 75 °C
- Ambient operating temperature - min
- -25 °C
- Equipment heat dissipation, current-dependent
- 4.3 W
- Heat dissipation capacity
- 0 W
- Heat dissipation per pole, current-dependent
- 0 W
- Rated operational current for specified heat dissipation (In)
- 2 A
- Static heat dissipation, non-current-dependent
- 0 W
- Admissible back-up fuse - max
- 125 A gL/gG
- Breaking capacity
- 10 kA (UL1077)
- Direction of incoming supply
- As required
- Frequency rating - max
- 60 Hz
- Frequency rating - min
- 50 Hz
- Lifespan, electrical
- 10000 operations
- Operational switching capacity
- 7.5 kA
- Operational voltage (IEC/EN 60947-2) - max
- 440 VAC
- Overvoltage category
- III
- Pollution degree
- 2
- Rated impulse withstand voltage (Uimp)
- 4 kV
- Rated insulation voltage (Ui)
- 440 V
- Rated operational voltage (Ue) - max
- 400 V
- Rated service short-circuit breaking capacity (IEC/EN 60898-1) - Ics
- 7.5 kA
- Rated service short-circuit breaking capacity (IEC/EN 60947-2) - Ics
- 7.5 kA
- Rated short-circuit breaking capacity (IEC/EN 60898-1) - Icn at 230 V
- 10 kA
- Rated short-circuit breaking capacity (IEC/EN 60898-1)- Icn at 400 V
- 10 kA
- Rated short-circuit breaking capacity (IEC 60947-2)- Icu at 230 V
- 15 kA
- Rated short-circuit breaking capacity (IEC 60947-2)- Icu at 400 V
- 15 kA
- Rated switching capacity (IEC/EN 60898-1)
- 10 kA
- Rated switching capacity (IEC/EN 60947-2)
- 15 kA
- Rated switching capacity (IEC/EN 60947-2) at max voltage rating
- 10 kA
- Selectivity class
- 3
- Voltage rating
- 240 V AC / 415 V AC
- Voltage rating (IEC/EN 60898-1)
- 415 VAC
- Voltage rating (UL)
- 480Y/277 V
- Voltage rating at DC
- 60 V DC (per pole)
- Voltage type
- AC
- Built-in depth
- 70.5 mm
- Busbar material thickness
- 0.8 mm - 2 mm
- Connectable conductor cross section (multi-wired) - max
- 25 mm²
- Connectable conductor cross section (multi-wired) - min
- 1 mm²
- Connectable conductor cross section (solid-core) - max
- 25 mm²
- Connectable conductor cross section (solid-core) - min
- 1 mm²
- Degree of protection
- IP20; IP40 (when fitted)
- Enclosure width
- 80 mm
- Frame
- 45 mm
- Mounting Method
- Top-hat rail IEC/EN 60715
- Mounting position
- As required
- Mounting width
- 17.5 mm
- Mounting width per pole
- 17.5 mm
- Terminal capacity (control cable)
- 25 mm² (1x)
- Terminal capacity of screw terminals for main cable
- 10 mm² (2x)
- Terminal protection
- Finger and hand touch safe, DGUV VS3, EN 50274
- Terminals (top and bottom)
- Twin-purpose terminals
- Width in number of modular spacings
- 4
Standards & Compliance
- HS Code
- 8536.90
Cross References
- EAN 4015082789633
- SAP 1000293772
- Code 8760881
Product Documentation
Document preview: FAZ-C2/3N INST.AUT.3P+N-C-2A (278963) — Specification Data Sheet (OEM)
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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 278963?
- 278963 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 278963.
- What is the HS code for 278963?
- The customs tariff (HS) code for 278963 is 8536.90.
- Who manufactures 278963?
- 278963 is a Eaton product in the Electrical Components range.
- Is a datasheet available for 278963?
- Yes — the 278963 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 278963?
- The minimum order quantity is 1.
- Is 278963 available?
- Yes — 278963 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).
