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Datasheet generated 2026-10-07
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MCB FAZ-B25/1-DC

Eaton · Electrical Components · Miniature Circuit Breakers · Ireland · eaton.com
Part Number
FAZ-B25/1-DC  ·  HS 8536.30
MCB FAZ-B25/1-DC

Technical Specifications

Manufacturer part number (MPN)FAZ-B25/1-DC
EAN / GTIN4015081712670
Sales unitpcs
Package quantity12 pcs
Eaton catalogue number176071
Depth80 mm
Height75.5 mm
Width17.7 mm
Weight0.115 kg
CompliancesRoHS conform
CertificationsEN45545-2; 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 withFAZ-DC; Miniature circuit breaker
Amperage Rating25 A
ApplicationSwitchgear for DC applications
Number of polesSingle-pole
Number of poles (protected)1
Number of poles (total)1
Release characteristicB
Tripping characteristicB
TypeFAZ-DC Miniature circuit breaker
Ambient operating temperature - max75 °C
Ambient operating temperature - min-25 °C
Equipment heat dissipation, current-dependent3 W
Rated operational current for specified heat dissipation (In)25 A
Overvoltage categoryIII
Pollution degree2
Rated impulse withstand voltage (Uimp)4 kV
Rated insulation voltage (Ui)440 V
Rated operational voltage (Ue) - max250 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
Voltage typeDC
Built-in depth70.5 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 protectionIP20
Width in number of modular spacings1
Document NameDescription Action
Power loss3 W
Number of protected poles1
Rated current25 A
Rated voltage250 V
Rated insulation voltage Ui440 V
Rated impulse withstand voltage Uimp4 kV
Frequency50–60 Hz
Concurrently switching neutral conductorNo
Additional equipment possibleYes
Ambient temperature during operating-25–75 °C
Connectable conductor cross section multi-wired1–25 mm²
Connectable conductor cross section solid-core1–25 mm²
Explosion-proofNo
Flush-mounted installationNo
Country of originRomania

Properties

MOQ1

Cross-References

Attached Documents