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Siemens 3VA1112-5MH32-0CA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1112-5MH32-0CA0 SENTRON MCCB, 125 A, 3-Pole, UVR

MPN3VA1112-5MH32-0CA0

Siemens SENTRON 3VA1112-5MH32-0CA0, molded case circuit breaker, 3-pole, 125 A at 40 °C, TM120M overcurrent release, undervoltage release, 70 mm depth.

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

3VA1112-5MH32-0CA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11125MH320AA0
3VA1112-5MH32-0CA0 — 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 classM
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 440 V75.6 kA
Breaking capacity at 500 V7.5 kA
Breaking capacity at 690 V7.5 kA
Power loss, max.30.6 W
3VA1112-5MH32-0CA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM120M
Overcurrent protection functionI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1112-5MH32-0CA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1112-5MH32-0CA0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1112-5MH32-0CA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1112-5MH32-0CA0 — 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

It carries a TM120M thermal-magnetic overcurrent release and an integrated undervoltage release (UVR).

Full 125 A rating holds through 50 °C ambient. Above that it derates linearly: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, 114 A at 70 °C. Maximum power loss is 30.6 W, which matters for enclosure heat calculations.

Breaking capacity by voltage

Rated short-circuit breaking capacity (Icu) varies with system voltage: 187 kA at 240 V AC, 121 kA at 415 V, 75.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V. At 690 V the 7.5 kA figure is the limiting case — verify your available fault current if the MCCB feeds a 690 V drive input.

Undervoltage release and dimensions

Frequently asked questions

Where can I buy 3VA1112-5MH32-0CA0 and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — no stock count or price is published here.

What is the closest functional alternative to 3VA1112-5MH32-0CA0?

The 3VA1112-5EE32-0AA0 is a sibling in the same SENTRON 3VA1112 frame. The key difference: the -5MH32-0CA0 carries an undervoltage release (UVR), while the -5EE32-0AA0 does not. If your application requires UVR, stick with this order code; if not, the -5EE32-0AA0 is a drop-in alternative with the same 125 A rating and 3-pole form factor.

What is the depth of 3VA1112-5MH32-0CA0?

The depth is 70 mm (2.76 in). This is the dimension from the mounting surface to the front of the breaker — check enclosure clearance against busbars or wiring troughs behind the panel.

What is the width of 3VA1112-5MH32-0CA0?

The width is 76.2 mm (3 in), standard for a 3-pole SENTRON 3VA1112 frame. It fits the same DIN-rail or panel-mount footprint as other 3-pole breakers in this series.

MPN
3VA1112-5MH32-0CA0