
Eaton
FAZ-D4/3 (278888)
Part number278888EAN / GTIN4015082788889HS code8536.30
Electrical Components
Miniature Circuit Breakers
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Product Description
Eaton 278888 Industry unit breaker 3pol 4A D curve.
Technical Specifications
- Manufacturer part number (MPN)
- 278888
- EAN / GTIN
- 4015082788889
- Sales unit
- pcs
- Package quantity
- 40 pcs
- Eaton catalogue number
- 278888
- Depth
- 80 mm
- Height
- 75.5 mm
- Width
- 54 mm
- Weight
- 0.338 kg
- Compliances
- UL CSA09 (with supplementary protector only); RoHS conform
- Certifications
- North America (UL recognized, CSA certified); CSA-C22.2 No. 235; IEC/EN 60898; UL 1077; CE marking; UL (Category Control Number QVNU2, QVNU8); UL (File No. E177451); CSA (Class No. 3215-30); CSA (File No. 204453); IEC/EN 60947-2; EN45545-2; IEC 61373
- Current limiting class
- 3
- Features
- 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
- 4 A
- Application
- Branch circuits, not as BCPD Switchgear for industrial and advanced commercial applications xEffect - Switchgear for industrial and advanced commercial applications
- Number of poles
- Three-pole
- Number of poles (protected)
- 3
- Number of poles (total)
- 3
- Release characteristic
- D
- Tripping characteristic
- D
- Type
- FAZ Miniature circuit breaker
- Ambient operating temperature - max
- 75 °C
- Ambient operating temperature - min
- -25 °C
- Equipment heat dissipation, current-dependent
- 4.4 W
- Rated operational current for specified heat dissipation (In)
- 4 A
- Frequency rating - max
- 60 Hz
- Frequency rating - min
- 50 Hz
- 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 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 60947-2)
- 15 kA
- Voltage rating
- 240 V AC / 415 V AC
- Voltage rating (UL CSA 13)
- 480 Y/277 V AC
- Voltage type
- AC
- Built-in depth
- 70.5 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 (IEC); UL/CSA Type: -; IP20
- Width in number of modular spacings
- 3
- Document Name
- Description Action
- Power loss
- 4.5 W
- Number of protected poles
- 3
- Rated current
- 4 A
- Rated voltage
- 400 V
- Rated insulation voltage Ui
- 440 V
- Rated impulse withstand voltage Uimp
- 4 kV
- Frequency
- 50–60 Hz
- Concurrently switching neutral conductor
- No
- Additional equipment possible
- Yes
- Ambient temperature during operating
- -25–75 °C
- Connectable conductor cross section multi-wired
- 1–25 mm²
- Connectable conductor cross section solid-core
- 1–25 mm²
- Explosion-proof
- No
- Flush-mounted installation
- No
- Country of origin
- Romania
Standards & Compliance
- HS Code
- 8536.30
Cross References
- EAN 4015082788889
- SAP 1200057323
- Code 81915386
Product Documentation
Document preview: FAZ-D4/3 (278888) — Specification Data Sheet (OEM)
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Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 278888?
- 278888 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 278888.
- What is the HS code for 278888?
- The customs tariff (HS) code for 278888 is 8536.30.
- Who manufactures 278888?
- 278888 is a Eaton product in the Electrical Components range.
- Is a datasheet available for 278888?
- Yes — the 278888 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 278888?
- The minimum order quantity is 1.
- Is 278888 available?
- Yes — 278888 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).
