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Siemens 3VA1125-3EE42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1125-3EE42-0AA0 SENTRON MCCB, 25 A, 4-Pole, 75.6

MPN3VA1125-3EE42-0AA0
Active

Siemens SENTRON 3VA1125-3EE42-0AA0, molded case circuit breaker, 4-pole, 25 A rated at 40 °C, TM220 release, 75.6 kA breaking capacity 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

3VA1125-3EE42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA1125-3EE42-0AA0 — 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
3VA1125-3EE42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM220
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1125-3EE42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1125-3EE42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1125-3EE42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1125-3EE42-0AA0 — 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

Siemens 3VA1125-3EE42-0AA0 — 25 A 4-Pole MCCB with TM220 Release

The Siemens 3VA1125-3EE42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 25 A at 40 °C ambient, with a 4-pole configuration and a TM220 thermal-magnetic overcurrent release. Its design is line protection, meaning it's sized for feeder and main distribution duty rather than dedicated motor or generator protection. Breaking capacity runs 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that cover most low-voltage distribution panels in North American and IEC markets. At 690 V it still clears 11.9 kA, so it handles the fault-current headroom in a 480Y/277 V or 400 V panel without cascading upstream.

Thermal Derating and Ambient Range

Maximum power loss is 8.5 W per pole, which factors into enclosure thermal calculations if you're stacking multiple breakers in a compact panel.

It's a straight thermal-magnetic breaker with a TM220 release curve — no auxiliary contacts or remote signaling built in.

Frequently asked questions

What is the breaking capacity of 3VA1125-3EE42-0AA0 at 240 V?

75.6 kA at 240 V, with 52.5 kA at 415 V and 32 kA at 440 V.

What overcurrent release does this MCCB use?

A TM220 thermal-magnetic release — fixed thermal and magnetic trip settings for line protection.

Where can I buy 3VA1125-3EE42-0AA0 and how is it quoted?

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

MPN
3VA1125-3EE42-0AA0