Skip to main content
Log in
Siemens 3VA1225-6EF32-0KA0 — Molded Case Circuit Breakers (MCCB)

Siemens SENTRON 3VA1225-6EF32-0KA0 MCCB, 250A, 220kA at 240V

MPN3VA1225-6EF32-0KA0

Siemens SENTRON molded case circuit breaker, 3VA1225-6EF32-0KA0, 3-pole, 250 A rated, 220 kA breaking capacity at 240 V, TM240 thermal-magnetic release, shunt trip (STL), line protection.

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

3VA1225-6EF32-0KA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA12256EF320AA0
3VA1225-6EF32-0KA0 — 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 classH
Breaking capacity at 240 V220 kA
Breaking capacity at 415 V154 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
3VA1225-6EF32-0KA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1225-6EF32-0KA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-6EF32-0KA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1225-6EF32-0KA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-6EF32-0KA0 — 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

The Siemens SENTRON 3VA1225-6EF32-0KA0 is a 3-pole molded case circuit breaker (MCCB) rated 250 A continuous at 40 °C, with a TM240 thermal-magnetic overcurrent release and an integrated shunt trip (STL) auxiliary release. Breaking capacity is the headline number that governs fault-current coordination: 220 kA at 240 V AC, 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. That 220 kA at 240 V places it in the high-interrupting category for North American 240/277 V distribution — it clears a bolted fault upstream of the main without cascading, so downstream breakers can be rated lower.

Thermal derating and continuous current

At 55 °C it drops to 243 A, at 60 °C to 237 A, at 65 °C to 230 A, and at 70 °C to 223 A.

Shunt trip and auxiliary release configuration

The breaker can be remotely tripped by energizing the shunt coil, standard for emergency-stop circuits or fire-alarm shunt-down.

Frequently asked questions

Does 3VA1225-6EF32-0KA0 include a shunt trip?

Yes, the auxiliary release is a shunt trip (STL), enabling remote tripping for emergency-stop or fire-alarm shunt-down circuits.

MPN
3VA1225-6EF32-0KA0