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Siemens 3VA1125-4EF32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1125-4EF32-0AA0 SENTRON MCCB, 25A, 3-Pole, 121kA

MPN3VA1125-4EF32-0AA0
Active

Siemens SENTRON 3VA1125-4EF32-0AA0, molded case circuit breaker, 3-pole, 25 A at 40 °C, TM240 overcurrent release, 121 kA at 240 V, line protection design.

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

3VA1125-4EF32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA1125-4EF32-0AA0 — 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 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 V11.9 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.8.5 W
3VA1125-4EF32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1125-4EF32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1125-4EF32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1125-4EF32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1125-4EF32-0AA0 — 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

Its 3-pole construction and 25 A rating at 40 °C make it a fit for feeder circuits, lighting panels, and light industrial loads where the TM240 thermal-magnetic release provides inverse-time overload and instantaneous short-circuit protection.

Breaking capacity across voltages — what the ratings mean

This MCCB carries a 121 kA interrupting rating at 240 V, dropping to 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V.

The 25 A rating holds flat from 40 °C through 50 °C, then steps down to 24 A at 55–60 °C and 23 A at 65–70 °C. The 8.5 W maximum power loss is manageable in a standard panel, but if you are ganging multiple breakers in a sealed enclosure, account for the cumulative heat.

Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a compact 3-pole footprint that fits standard MCCB mounting bases in SENTRON and third-party distribution panels. The IP40 protection on the front means it is dust-protected but not sealed against water ingress; install in a dry indoor enclosure.

Frequently asked questions

How do I get current pricing and availability for 3VA1125-4EF32-0AA0?

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 estimate.

What is the breaking capacity of 3VA1125-4EF32-0AA0 at 240 V?

The interrupting rating is 121 kA at 240 V, derating to 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V and 690 V.

What is the rated current of 3VA1125-4EF32-0AA0 at 40 °C?

The continuous current rating is 25 A at 40 °C, holding flat through 50 °C, then derating to 24 A at 55–60 °C and 23 A at 65–70 °C.

What compliance documentation does Siemens provide for 3VA1125-4EF32-0AA0?

As a standard SENTRON catalog item, Siemens provides a declaration of conformity (CE/UKCA), UL/CSA recognition, and RoHS/REACH compliance documentation through their support portal. The IP40 front protection and 800 V rated insulation voltage are design-level compliance indicators for IEC 60947-2.

MPN
3VA1125-4EF32-0AA0