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Siemens 3VA2125-7HN46-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-7HN46-0AA0 SENTRON MCCB, 25 A, 4-Pole, ETU35

MPN3VA2125-7HN46-0AA0
Active

Siemens SENTRON 3VA2125-7HN46-0AA0, molded case circuit breaker, 4-pole, 25 A, ETU350 electronic trip unit, 330 kA at 240 V, IP40 front.

Siemens 3VA2125-7HN46-0AA0 datasheet (PDF)
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

3VA2125-7HN46-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2125-7HN46-0AA0 — 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 °C25 A
Current at 60 °C25 A
Current at 65 °C25 A
Current at 70 °C25 A
Switching capacity classC
Breaking capacity at 240 V330 kA
Breaking capacity at 415 V242 kA
Breaking capacity at 440 V242 kA
Breaking capacity at 500 V187 kA
Breaking capacity at 690 V3.7 kA
Power loss, max.0.6 W
3VA2125-7HN46-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU350
Overcurrent protection functionLSI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA2125-7HN46-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typedouble-sided box terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-7HN46-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-7HN46-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-7HN46-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.25 000
Height181 mm
Width140 mm
Depth86 mm
Height (in)7.13 in
Width (in)5.51 in
Depth (in)3.39 in

Product details

What this MCCB delivers

Breaking capacity is where this breaker earns its keep: 330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. IP40 on the front means tools or fingers won't reach live parts in a closed panel — standard for indoor distribution boards.

The 140 mm width across four poles is the dimension to check against existing busbar spacing or phase barriers in a retrofit panel. Depth of 86 mm leaves room for rear-connected busbars or a cable duct behind the breaker.

Frequently asked questions

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

Breaking capacity is 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V.

What trip unit does the 3VA2125-7HN46-0AA0 use?

It uses the ETU350 electronic trip unit, which provides adjustable overload and short-circuit protection settings.

Where can I buy 3VA2125-7HN46-0AA0 and get current pricing?

This breaker is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time.

Will 3VA2125-7HN46-0AA0 drop into a panel specified for 3VA2040-8HN42-0AA0?

Both are 4-pole SENTRON 3VA2 breakers sharing the same mounting footprint, so the physical swap is straightforward. The main difference is the trip rating — 25 A here versus 40 A on the 3VA2040 — so verify the branch circuit's ampacity before substitution.

MPN
3VA2125-7HN46-0AA0