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Datasheet generated 2026-10-07
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EATO FAZ-S40/2 Circuit Breaker

Eaton · Electrical Components · Miniature Circuit Breakers · Ireland · eaton.com
Part Number
FAZ-S40/2  ·  HS 8536.90
EATO FAZ-S40/2 Circuit Breaker

Eaton FAZ-S40/2 Miniature circuit breaker (MCB), 40 A, 2p, characteristic: S.

Technical Specifications

Manufacturer part number (MPN)FAZ-S40/2
EAN / GTIN4015082788155
HS code8536.90
Sales unitpcs
Package quantity60 pcs
Eaton catalogue number278815
Depth80 mm
Height75.5 mm
Width36 mm
Weight0.233 kg
CompliancesUL CSA09 (with supplementary protector only); RoHS conform
CertificationsUL (Category Control Number QVNU2, QVNU8); CE marking; UL 1077; CSA (File No. 204453); North America (UL recognized, CSA certified); CSA (Class No. 3215-30); UL (File No. E177451); IEC/EN 60898; CSA-C22.2 No. 235; IEC/EN 60947-2; EN45545-2; IEC 61373
Current limiting class3
FeaturesAdditional equipment possible
Special featuresAmbient temperature hint: a 1 °C increase results in a 0.5% linear reduction of current carrying capacity
Used withMiniature circuit breaker; FAZ
Amperage Rating40 A
ApplicationBranch circuits, not as BCPD Switchgear for industrial and advanced commercial applications xEffect - Switchgear for industrial and advanced commercial applications
Number of polesTwo-pole
Number of poles (protected)2
Number of poles (total)2
Release characteristicOther
Tripping characteristicS
TypeFAZ Miniature circuit breaker
Ambient operating temperature - max75 °C
Ambient operating temperature - min-25 °C
Equipment heat dissipation, current-dependent7.9 W
Heat dissipation capacity0 W
Heat dissipation per pole, current-dependent0 W
Rated operational current for specified heat dissipation (In)40 A
Static heat dissipation, non-current-dependent0 W
Admissible back-up fuse - max125 A gL/gG
Direction of incoming supplyAs required
Frequency rating - max60 Hz
Frequency rating - min50 Hz
Lifespan, electrical10000 operations
Operational switching capacity7.5 kA
Overvoltage categoryIII
Pollution degree2
Rated impulse withstand voltage (Uimp)4 kV
Rated insulation voltage (Ui)440 V
Rated operational voltage (Ue) - max230 V
Rated short-circuit breaking capacity (IEC 60947-2)- Icu at 230 V10 kA
Rated short-circuit breaking capacity (IEC 60947-2)- Icu at 400 V10 kA
Rated switching capacity (IEC/EN 60947-2)10 kA
Selectivity class3
Voltage rating240 V AC / 415 V AC
Voltage rating (UL CSA 13)480 Y/277 V AC; 96 V DC
Voltage rating at DC60 V DC (per pole)
Voltage typeAC
Built-in depth70.5 mm
Busbar material thickness0.8 mm - 2 mm
Connectable conductor cross section (multi-wired) - max25 mm²
Connectable conductor cross section (multi-wired) - min1 mm²
Connectable conductor cross section (solid-core) - max25 mm²
Connectable conductor cross section (solid-core) - min1 mm²
Degree of protectionUL/CSA Type: -; IP40 (when fitted); IP20; IP20 (IEC)
Enclosure width80 mm
Frame45 mm
Mounting MethodTop-hat rail IEC/EN 60715
Mounting positionAs required
Mounting width17.5 mm
Mounting width per pole17.5 mm
Terminal capacity (control cable)25 mm² (1x)
Terminal capacity of screw terminals for main cable10 mm² (2x)
Terminal protectionFinger and hand touch safe, DGUV VS3, EN 50274
Terminals (top and bottom)Twin-purpose terminals
Width in number of modular spacings2
Document NameDescription Action

Properties

MOQ1

Cross-References

Attached Documents