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Siemens 3VA1125-3GE42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1125-3GE42-0AA0 SENTRON MCCB, 25 A, 4-Pole, TM220

MPN3VA1125-3GE42-0AA0
Active

Siemens SENTRON 3VA1125-3GE42-0AA0, molded case circuit breaker, 25 A, 4-pole, TM220 thermal-magnetic release, 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

3VA1125-3GE42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA1125-3GE42-0AA0 — Ratings
ParameterValue
Number of poles4
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 classN
Breaking capacity at 240 V75.6 kA
Breaking capacity at 415 V52.5 kA
Breaking capacity at 440 V32 kA
Breaking capacity at 500 V11.9 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.8.5 W
3VA1125-3GE42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM220
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1125-3GE42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1125-3GE42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1125-3GE42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1125-3GE42-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height130 mm
Width101.6 mm
Depth70 mm
Height (in)5.12 in
Width (in)4 in
Depth (in)2.76 in

Product details

Breaking capacity hits 75.6 kA at 240 V, tapering to 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V — so it handles high-fault utility feeds downstream of a transformer, not just branch circuits. The TM220 release means thermal protection for overloads and magnetic for short-circuits; no electronic adjustments, no comms module.

Full 25 A rating holds up to 50 °C ambient; at 55 °C it derates to 24 A, and at 70 °C it's 23 A (–). Footprint is 101.6 mm wide by 130 mm tall by 70 mm deep (–), which is the standard SENTRON 3VA moulded-case form factor. IP40 on the front keeps dust out of the mechanism.

That means you can spec it into a new BOM without worrying about a last-time-buy window closing mid-project.

Frequently asked questions

Where can I buy 3VA1125-3GE42-0AA0 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 number.

What is the breaking capacity of this MCCB at different voltages?

75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V (–). That covers most industrial distribution voltages up to 690 V.

MPN
3VA1125-3GE42-0AA0