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EATON - MOELLER FAZ-D8/3 FAZ-D8/3 278891 Y7-278891 EATON ELECTRIC Miniature circuit breaker (MCB), 8A, 3p, D-Char, AC View larger
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FAZ-D8/3 278891 Y7-278891 EATON ELECTRIC Miniature circuit breaker (MCB), 8A, 3p, D-Char, AC

FAZ-D8/3

278891

Y7-278891

EATON - MOELLER

1 Pcs.

Miniature circuit breaker (MCB), 8A, 3p, D-Char, AC FAZ-D8/3 Eaton Moeller series xEffect - FAZ MCB. FAZ, 3-pole, tripping characteristic: D, rated current In: 8 A Miniature circuit breaker (MCB), FAZ, 3-pole, tripping characteristic: D, rated current In: 8 A, Switchgear for industrial and advanced commercial applications

Automation > Miniature circuit breaker (MCB)
Modular Switchgear – Industrial

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General specifications

Product Name
Eaton Moeller series xEffect - FAZ MCB
Catalog Number
278891
Model Code
FAZ-D8/3
EAN
4015082788919
Product Length/Depth
80 mm
Product Height
75.5 mm
Product Width
54 mm
Product Weight
0.333 kg
Compliances
UL CSA09 (with supplementary protector only)
RoHS conform
Certifications
UL 1077
CSA (File No. 204453)
UL (Category Control Number QVNU2, QVNU8)
CE marking
UL (File No. E177451)
North America (UL recognized, CSA certified)
IEC/EN 60898
IEC/EN 60947-2
CSA-C22.2 No. 235
CSA (Class No. 3215-30)
EN45545-2
IEC 61373
Catalog Notes
Magnetic range for higher startup inrush levels that are usually seen in motors and transformers, and other high inductive systems.

Delivery Programme

Application
Number of poles
Three-pole
Number of poles (total)
3
Number of poles (protected)
3
Tripping characteristic
D
Release characteristic
D
Amperage Rating
8 A
Type
  • FAZ
  • Miniature circuit breaker

Technical data - electrical

Voltage type
AC
Voltage rating
240 V AC / 415 V AC
Voltage rating at DC
60 V DC (per pole)
Voltage rating (UL CSA 13)
480 Y/277 V AC
Rated operational voltage (Ue) - max
400 V
Rated insulation voltage (Ui)
440 V
Rated impulse withstand voltage (Uimp)
4 kV
Frequency rating - min
50 Hz
Frequency rating - max
60 Hz
Rated switching capacity (IEC/EN 60947-2)
15 kA
Operational switching capacity
7.5 kA
Rated short-circuit breaking capacity (EN 60898) at 230 V
10 kA
Rated short-circuit breaking capacity (EN 60898) at 400 V
10 kA
Rated short-circuit breaking capacity (IEC 60947-2) at 230 V
15 kA
Rated short-circuit breaking capacity (IEC 60947-2) at 400 V
15 kA
Admissible back-up fuse - max
125 A gL/gG
Selectivity class
3
Overvoltage category
III
Pollution degree
2
Lifespan, electrical
10000 operations
Direction of incoming supply
As required

Technical data - mechanical

Frame
45 mm
Enclosure width
80 mm
Width in number of modular spacings
3
Built-in depth
70.5 mm
Mounting width per pole
17.5 mm
Mounting width
17.5 mm
Mounting Method
Top-hat rail IEC/EN 60715
Mounting position
As required
Degree of protection
IP20 (IEC)
IP20
IP40 (when fitted)
UL/CSA Type: -
Terminals (top and bottom)
Twin-purpose terminals
Connectable conductor cross section (solid-core) - min
1 mm²
Connectable conductor cross section (solid-core) - max
25 mm²
Connectable conductor cross section (multi-wired) - min
1 mm²
Connectable conductor cross section (multi-wired) - max
25 mm²
Terminal capacity of screw terminals for main cable
10 mm² (2x)
Terminal capacity (control cable)
25 mm² (1x)
Terminal protection
Finger and hand touch safe, DGUV VS3, EN 50274
Busbar material thickness
0.8 mm - 2 mm

Design verification as per IEC/EN 61439 - technical data

Rated operational current for specified heat dissipation (In)
8 A
Equipment heat dissipation, current-dependent
4 W
Ambient operating temperature - min
-25 °C
Ambient operating temperature - max
75 °C

Additional information

Current limiting class
3
Features
Additional equipment possible
Used with
FAZ
Miniature circuit breaker

ETIM for 278891 Circuit breakers and fuses (EC000042)
Feature Name Feature Value
Built-in depth (EF000218) 70.5 mm
Release characteristic (EF000889) D
Number of poles (total) (EF008618) 3
Number of protected poles (EF005548) 3
Rated current (EF000227) 8 A
Rated voltage (EF000228) 400 V
Rated insulation voltage Ui (EF001366) 440 V
Rated impulse withstand voltage Uimp (EF011980) 4 kV
Rated short-circuit breaking capacity Icn according to EN 60898 at 230 V (EF009556) 10 kA
Voltage type (EF000187) AC
Rated short-circuit breaking capacity Icn according to EN 60898 at 400 V (EF009555) 10 kA
Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 230 V (EF009557) 15 kA
Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 400 V (EF009558) 15 kA
Frequency (EF000416) 50 Hz
Power loss (EF005387) 3.9 W
Current limiting class (EF002568) 3
Flush-mounted installation (EF007517) No
Concurrently switching neutral conductor (EF005997) No
Over voltage category (EF002569) 3
Pollution degree (EF002570) 2
Additional equipment possible (EF008148) Yes
Width in number of modular spacings (EF002950) 3
Degree of protection (IP) (EF005474) IP20
Ambient temperature during operating (EF007515) -25 °C
Connectable conductor cross section multi-wired (EF007343) 1 mm²
Connectable conductor cross section solid-core (EF007337) 1 mm²
Explosion-proof (EF004663) No

Product Datasheet

Electrica Online Product Datasheet Prepared from the current product description, catalog data and structured technical attributes.