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Siemens 3VA1225-5EF42-0AB0 — Molded Case Circuit Breakers (MCCB)

Siemens SENTRON 3VA1225-5EF42-0AB0 MCCB, 250 A, 4-Pole, 187

MPN3VA1225-5EF42-0AB0

Siemens SENTRON 3VA1225-5EF42-0AB0, molded case circuit breaker, 4-pole, 250 A rated current, 187 kA breaking capacity at 240 V, TM240 overcurrent release, line protection design.

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

3VA1225-5EF42-0AB0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA12255EF420AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AA11
3VA1225-5EF42-0AB0 — Ratings
ParameterValue
Number of poles4
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.57 W
3VA1225-5EF42-0AB0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1225-5EF42-0AB0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-5EF42-0AB0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1225-5EF42-0AB0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-5EF42-0AB0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height158 mm
Width140 mm
Depth70 mm
Height (in)6.22 in
Width (in)5.51 in
Depth (in)2.76 in

Product details

The Siemens SENTRON 3VA1225-5EF42-0AB0 is a 4-pole molded case circuit breaker (MCCB) rated for 250 A at 40 °C, with a TM240 thermal-magnetic overcurrent release.

Rated current holds flat at 250 A from 40 °C through 50 °C, then derates to 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C. Breaking capacity varies with system voltage: 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.

Physical integration

Dimensions are 140 mm wide, 158 mm high, 70 mm deep. The 140 mm width on a 4-pole MCCB is standard for panelboard mounting; verify the busbar spacing and enclosure cutout against your existing layout. Comes with 2 auxiliary switches (HP design) factory-fitted.

MPN
3VA1225-5EF42-0AB0