Unit breaker 13A 3P+N C (278973)
Eaton

Unit breaker 13A 3P+N C

Part number278973EAN / GTIN4015082789732HS code8536.90
Electrical Components
Miniature Circuit Breakers
MOQ:1

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Product Description

Eaton 278973 Miniature circuit breaker (MCB), 13 A, 3p+N, characteristic: C.

Technical Specifications

Manufacturer part number (MPN)
278973
EAN / GTIN
4015082789732
HS code
8536.90
Sales unit
pcs
Package quantity
30 pcs
Eaton catalogue number
278973
Depth
80 mm
Height
75.5 mm
Width
72 mm
Weight
0.423 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
FAZ; Miniature circuit breaker
Amperage Rating
13 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
8.1 W
Heat dissipation capacity
0 W
Heat dissipation per pole, current-dependent
0 W
Rated operational current for specified heat dissipation (In)
13 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
Document Name
Description Action

Standards & Compliance

HS Code
8536.90

Cross References

  • EAN 4015082789732
  • SAP 1000221841
  • Code 8909082

Product Documentation

Document preview: Unit breaker 13A 3p+N C (278973) — Specification Data Sheet (OEM)

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 278973?
278973 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 278973.
What is the HS code for 278973?
The customs tariff (HS) code for 278973 is 8536.90.
Who manufactures 278973?
278973 is a Eaton product in the Electrical Components range.
Is a datasheet available for 278973?
Yes — the 278973 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 278973?
The minimum order quantity is 1.
Is 278973 available?
Yes — 278973 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).