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Siemens 3VA1225-5EF32-0BB0 — Molded Case Circuit Breakers (MCCB)

SENTRON 3VA1225-5EF32-0BB0 MCCB, 3-pole, 250 A, 187 kA at 24

MPN3VA1225-5EF32-0BB0

SENTRON 3VA1225-5EF32-0BB0, molded case circuit breaker, 3-pole, 250 A, breaking capacity 187 kA at 240 V, line protection with undervoltage release.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3VA1225-5EF32-0BB0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA12255EF320AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AA11
3VA1225-5EF32-0BB0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C250 A
Current at 45 °C250 A
Current at 50 °C250 A
Current at 55 °C243 A
Current at 60 °C237 A
Current at 65 °C230 A
Current at 70 °C223 A
Switching capacity classM
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 440 V75.6 kA
Breaking capacity at 500 V30 kA
Breaking capacity at 690 V17 kA
Power loss, max.59.5 W
3VA1225-5EF32-0BB0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1225-5EF32-0BB0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-5EF32-0BB0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1225-5EF32-0BB0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-5EF32-0BB0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height158 mm
Width105 mm
Depth70 mm
Height (in)6.22 in
Width (in)4.13 in
Depth (in)2.76 in

Product details

Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V — that range covers most industrial distribution bus voltages without needing a current-limiting upstream breaker. Rated insulation voltage is 800 V, and the breaker operates from -25 °C to 70 °C ambient, with storage from -40 °C to 80 °C.

The basic switch module is order code 3VA12255EF320AA0; the auxiliary release is an undervoltage release (UVR), wired separately from the main power path.

Frequently asked questions

Does this breaker include an undervoltage release?

Yes, it is fitted with an undervoltage release (UVR) as the auxiliary release, plus two HP auxiliary switches.

MPN
3VA1225-5EF32-0BB0