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Siemens 3VA1225-5GF42-0KA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1225-5GF42-0KA0 SENTRON MCCB, 250 A, 4-Pole

MPN3VA1225-5GF42-0KA0

Siemens SENTRON 3VA1225-5GF42-0KA0, molded case circuit breaker, 250 A, 4-pole, TM240 overcurrent release, 187 kA at 240 V, shunt trip.

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

3VA1225-5GF42-0KA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA12255GF420AA0
3VA1225-5GF42-0KA0 — 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
3VA1225-5GF42-0KA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1225-5GF42-0KA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-5GF42-0KA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1225-5GF42-0KA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-5GF42-0KA0 — 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 187 kA breaking capacity at 240 V tells you this breaker can clear a massive fault without welding contacts or venting gas back into the enclosure; at 415 V that figure drops to 121 kA, and at 690 V to 17 kA — still well above typical distribution transformer fault levels. The shunt trip (STL) auxiliary release lets a remote signal (E-stop, fire alarm, PLC output) trip the breaker independently of the overcurrent mechanism, which is useful for emergency-off circuits or load-shedding schemes.

Thermal derating — where the 250 A holds and where it doesn't

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

Frequently asked questions

What is the breaking capacity of this MCCB at 415 V?

121 kA at 415 V. At 240 V it's 187 kA, at 440 V it's 75.6 kA, at 500 V it's 30 kA, and at 690 V it's 17 kA.

Where can I buy 3VA1225-5GF42-0KA0 and how is it quoted?

It is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at that time.

Does this breaker include a shunt trip?

Yes, the auxiliary release is a shunt trip (STL), allowing remote tripping via a control signal.

MPN
3VA1225-5GF42-0KA0