Skip to main content
Log in
Siemens 3VA2125-8HM36-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-8HM36-0AA0 SENTRON MCCB, 25 A, 3-Pole, 440 k

MPN3VA2125-8HM36-0AA0
Active

Siemens SENTRON 3VA2125-8HM36-0AA0, molded case circuit breaker, 3-pole, 25 A continuous rating, adjustable thermal-magnetic trip 38–300 A, 440 kA breaking capacity at 240 V AC.

Siemens 3VA2125-8HM36-0AA0 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

3VA2125-8HM36-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2125-8HM36-0AA0 — 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 °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
3VA2125-8HM36-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU330
Overcurrent protection functionLIG
Ground-fault monitoringSummation current formation L-conductor
Grounding protection functionYes
3VA2125-8HM36-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typedouble-sided box terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-8HM36-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-8HM36-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-8HM36-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.25 000
Height181 mm
Width105 mm
Depth86 mm
Height (in)7.13 in
Width (in)4.13 in
Depth (in)3.39 in

Product details

SENTRON 3VA2125-8HM36-0AA0 — 25 A MCCB with ground-fault monitoring

The Siemens SENTRON 3VA2125-8HM36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 25 A continuous current, with an adjustable thermal-magnetic trip unit covering 38 A to 300 A.

At 240 V the 3VA2125-8HM36-0AA0 delivers 440 kA breaking capacity; at 415 V and 440 V it still holds 330 kA, and at 500 V it provides 220 kA. These figures allow the breaker to serve as a main or branch device in high-fault-current installations, provided the system voltage and available fault current are coordinated.

Physical integration and panel fit

Frequently asked questions

Does the 3VA2125-8HM36-0AA0 include ground-fault monitoring?

Yes, it includes summation-current ground-fault monitoring on the L-conductor.

MPN
3VA2125-8HM36-0AA0