Skip to main content
Log in
Siemens 3VA2125-8HL42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-8HL42-0AA0 SENTRON MCCB, 25A, 4-Pole, ETU320

MPN3VA2125-8HL42-0AA0
Active

Siemens SENTRON 3VA2125-8HL42-0AA0, molded case circuit breaker, 4-pole, ETU320 electronic overcurrent release, 25 A rated continuous current, 440 kA breaking capacity at 240 V AC.

Siemens 3VA2125-8HL42-0AA0 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

3VA2125-8HL42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2125-8HL42-0AA0 — 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 classL
Breaking capacity at 240 V440 kA
Breaking capacity at 415 V330 kA
Breaking capacity at 440 V330 kA
Breaking capacity at 500 V220 kA
Breaking capacity at 690 V52.5 kA
Power loss, max.0.5 W
3VA2125-8HL42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU320
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA2125-8HL42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-8HL42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-8HL42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-8HL42-0AA0 — 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

Line protection MCCB with ETU320 — 25 A fixed at 4 poles

The Siemens SENTRON 3VA2125-8HL42-0AA0 is a 4-pole molded case circuit breaker (MCCB) designed for line protection, carrying a rated continuous current of 25 A and an adjustable overcurrent release range from 38 A minimum to 300 A maximum via the ETU320 electronic trip unit. Breaking capacity reaches 440 kA at 240 V AC, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V — numbers that define where this breaker can be applied without cascading upstream in a fault scenario.

Physical fit — panel and enclosure integration

Dimensions are 86 mm deep, 140 mm wide, and 181 mm high — a 4-pole MCCB footprint that fits standard Siemens SENTRON 3VA panel-mounting cutouts and busbar systems.

MPN
3VA2125-8HL42-0AA0