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Siemens 3VA1125-5EF32-0KA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1125-5EF32-0KA0 MCCB 25A 3-Pole, 187kA at 240V

MPN3VA1125-5EF32-0KA0

Siemens SENTRON 3VA1125-5EF32-0KA0, 3-pole molded case circuit breaker, 25 A rated current, TM240 thermal-magnetic release, 187 kA breaking capacity at 240 V AC.

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

3VA1125-5EF32-0KA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11255EF320AA0
3VA1125-5EF32-0KA0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C25 A
Current at 45 °C25 A
Current at 50 °C25 A
Current at 55 °C24 A
Current at 60 °C24 A
Current at 65 °C23 A
Current at 70 °C23 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 V17 kA
Breaking capacity at 690 V17 kA
Power loss, max.8.5 W
3VA1125-5EF32-0KA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1125-5EF32-0KA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1125-5EF32-0KA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1125-5EF32-0KA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1125-5EF32-0KA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height130 mm
Width76.2 mm
Depth70 mm
Height (in)5.12 in
Width (in)3 in
Depth (in)2.76 in

Product details

Siemens SENTRON 3VA1125-5EF32-0KA0 – 25 A MCCB with Shunt Trip

Rated current is 25 A up to 50 °C, derating to 23 A at 70 °C. The 187 kA breaking capacity at 240 V AC drops to 121 kA at 415 V and 75.6 kA at 440 V; at 500 V and 690 V it holds at 17 kA — sufficient for high-fault industrial panels where selectivity with upstream gear matters. The shunt trip (STL) allows remote tripping from an emergency-stop or safety circuit — useful for a controlled disconnection under fault or maintenance conditions.

Panel Integration & Mounting

The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep; the 3-inch width fits standard panel cutouts for 3-pole MCCBs.

Frequently asked questions

What is 3VA1125-5EF32-0KA0's breaking capacity at 240 V?

The breaking capacity is 187 kA at 240 V AC; at 415 V it is 121 kA, at 440 V it is 75.6 kA, and at 500 V and 690 V it is 17 kA.

Where can I buy 3VA1125-5EF32-0KA0?

This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.

Will 3VA1125-5EF32-0KA0 drop into a panel specified for 3VA1110-5EF32-0LA0?

Both are 3-pole SENTRON MCCBs with the same 76.2 mm width and shunt trip, so the footprint is compatible — but verify the amp rating and breaking capacity match your coordination study, as the 3VA1110 is a 100 A frame.

MPN
3VA1125-5EF32-0KA0