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Siemens 3VA1225-6EF42-0CC0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1225-6EF42-0CC0 SENTRON MCCB, 250 A, 4-Pole, 220

MPN3VA1225-6EF42-0CC0

Siemens SENTRON 3VA1225-6EF42-0CC0, molded case circuit breaker, 4-pole, 250 A at 40 °C, line protection design, with undervoltage release and 2 auxiliary switches HQ, breaking capacity 220 kA at 240 V.

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

3VA1225-6EF42-0CC0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA12256EF420AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AA12
3VA1225-6EF42-0CC0 — 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 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.59.5 W
3VA1225-6EF42-0CC0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1225-6EF42-0CC0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-6EF42-0CC0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1225-6EF42-0CC0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-6EF42-0CC0 — 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

Breaking Capacity and Thermal Derating

Breaking capacity drops from 220 kA at 240 V to 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V — a steep curve that matters when specifying for 480 V or 600 V systems. The 250 A rating holds flat from 40 °C to 50 °C, then derates to 243 A at 55 °C and 230 A at 65 °C. For a panel running at 60 °C ambient, the usable current is 237 A, not the full 250 A.

Panel Integration and Dimensions

The 59.5 W maximum power loss means the breaker dissipates heat into the enclosure; factor that into thermal calculations for sealed cabinets.

Frequently asked questions

How do I get current pricing and availability for 3VA1225-6EF42-0CC0?

Submit an RFQ through this listing. The part is sourced to order through independent distribution; pricing and stock levels are confirmed at quote time based on your quantity and delivery requirements.

What is the breaking capacity of 3VA1225-6EF42-0CC0 at 480 V?

At 440 V it is rated 75.6 kA; at 500 V it drops to 30 kA. For a 480 V system, the value falls between those two points — conservatively, use the 440 V figure (75.6 kA) for system coordination.

Does 3VA1225-6EF42-0CC0 include an undervoltage release?

Yes, it is equipped with an undervoltage release (UVR) as the auxiliary release type, plus two auxiliary switches HQ for status feedback.

MPN
3VA1225-6EF42-0CC0