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Siemens 3VA1225-4EF32-0JH0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1225-4EF32-0JH0 SENTRON MCCB, 250 A, 3-Pole, 121

MPN3VA1225-4EF32-0JH0

Siemens SENTRON 3VA1225-4EF32-0JH0, molded case circuit breaker, 3-pole, 250 A, line protection, interrupting rating 121 kA at 240 V AC, 75.6 kA at 415 V, with shunt trip (STL) and 2 auxiliary switches + 1 trip alarm switch HQ.

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

3VA1225-4EF32-0JH0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA12254EF320AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AB12
3VA1225-4EF32-0JH0 — 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 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
3VA1225-4EF32-0JH0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1225-4EF32-0JH0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-4EF32-0JH0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA1225-4EF32-0JH0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-4EF32-0JH0 — 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

Above that, the breaker derates: 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C. The maximum power loss is 57 W.

Auxiliary switching and shunt trip

The auxiliary switches signal breaker position; the alarm switch indicates a trip event. The breaker does not include an undervoltage release or ground-fault monitoring. Communication function is not fitted — this is a standalone MCCB, not a networked unit.

Dimensions: 105 mm wide, 158 mm high, 70 mm deep. The width is the critical dimension for multi-pole grouping in a distribution panel — 105 mm per 3-pole unit is standard for this frame size. The depth of 70 mm (2.76 in) leaves clearance for rear-connected busbars or cable lugs. Mounting is via the molded-case base; no DIN-rail adapter is used at this frame size.

Frequently asked questions

Where can I buy 3VA1225-4EF32-0JH0 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 the time of quote.

What are the interrupting ratings for 3VA1225-4EF32-0JH0 at different voltages?

The symmetrical interrupting capacity is 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V.

What is the continuous current rating of 3VA1225-4EF32-0JH0 at elevated temperatures?

Rated 250 A from 40 °C to 50 °C. Derates to 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C.

What auxiliary switches and releases does 3VA1225-4EF32-0JH0 include?

It includes a shunt trip release (STL) for remote tripping, plus two auxiliary switches and one trip alarm switch (HQ). No undervoltage release or ground-fault monitoring is fitted.

MPN
3VA1225-4EF32-0JH0