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Siemens 3VA1112-4EF36-0BC0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1112-4EF36-0BC0 SENTRON MCCB, 125A, 3-Pole, 121kA

MPN3VA1112-4EF36-0BC0

Siemens SENTRON 3VA1112-4EF36-0BC0, molded case circuit breaker, 3-pole, 125 A at 40 °C, breaking capacity 121 kA at 240 V AC, with undervoltage release and 2 auxiliary switches HQ.

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

3VA1112-4EF36-0BC0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11124EF360AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AA12
3VA1112-4EF36-0BC0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C125 A
Current at 45 °C125 A
Current at 50 °C125 A
Current at 55 °C122 A
Current at 60 °C120 A
Current at 65 °C117 A
Current at 70 °C114 A
Switching capacity classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V75.6 kA
Breaking capacity at 440 V52.5 kA
Breaking capacity at 500 V11.9 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.30.6 W
3VA1112-4EF36-0BC0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1112-4EF36-0BC0 — Construction & Connection
ParameterValue
Main circuit connection typebox terminal on both sides
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1112-4EF36-0BC0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1112-4EF36-0BC0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1112-4EF36-0BC0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height130 mm
Width76.2 mm
Depth70 mm
Height (in)5.12 in
Width (in)3 in
Depth (in)2.76 in

Product details

Breaking capacity across voltages — where it fits

Breaking capacity drops as voltage rises: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. At 415 V it still clears 75.6 kA — enough for most industrial low-voltage switchgear.

At 55 °C it derates to 122 A, at 60 °C to 120 A, at 65 °C to 117 A, and at 70 °C to 114 A.

Three-pole footprint matches standard SENTRON 3VA MCCB cutouts — drops into existing DIN-rail or screw-mount backplates without panel rework.

Operating environment and power loss

Frequently asked questions

Where can I buy 3VA1112-4EF36-0BC0 and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.

What is the breaking capacity of 3VA1112-4EF36-0BC0 at 415 V?

75.6 kA at 415 V AC.

What is the rated current of 3VA1112-4EF36-0BC0 at 40 °C?

125 A at 40 °C ambient.

Does 3VA1112-4EF36-0BC0 include an undervoltage release?

Yes, it comes with an undervoltage release (UVR) and two auxiliary switches HQ factory-fitted.

MPN
3VA1112-4EF36-0BC0