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Siemens 3VA1225-4GF42-0KH0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1225-4GF42-0KH0 SENTRON MCCB, 250 A, 4-Pole, 70 m

MPN3VA1225-4GF42-0KH0

Siemens SENTRON 3VA1225-4GF42-0KH0, molded case circuit breaker, 4-pole, 250 A, line protection, breaking capacity 121 kA at 240 V, 70 mm depth.

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

3VA1225-4GF42-0KH0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA12254GF420AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AB12
3VA1225-4GF42-0KH0 — 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 classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V75.6 kA
Breaking capacity at 440 V52.5 kA
Breaking capacity at 500 V17 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.57 W
3VA1225-4GF42-0KH0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1225-4GF42-0KH0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-4GF42-0KH0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA1225-4GF42-0KH0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-4GF42-0KH0 — 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 3VA1225-4GF42-0KH0: The 250 A rating holds flat from 40 °C to 50 °C — no derating needed in a typical 40 °C panel ambient. At 55 °C it drops to 243 A, at 60 °C to 237 A, and at 70 °C to 223 A. The 121 kA interrupting rating at 240 V is the headline number, but the real-world SCCR for a 480 V panel is 75.6 kA at 415 V, and at 690 V it's 11.9 kA.

Auxiliaries and integration

The shunt trip lets a safety PLC or E-stop circuit kill power remotely — useful for emergency-off chains or interlocked machine feeds. The supplied basic switch is order code 3VA12254GF420AA0, which is the internal switching mechanism.

Frequently asked questions

Where can I buy 3VA1225-4GF42-0KH0 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is the breaking capacity of 3VA1225-4GF42-0KH0 at different voltages?

Breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V.

Does 3VA1225-4GF42-0KH0 include a shunt trip or undervoltage release?

It includes a shunt trip release (STL) for remote tripping, but no undervoltage release and no ground-fault monitoring.

MPN
3VA1225-4GF42-0KH0