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Siemens 3VA1112-5MH36-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1112-5MH36-0AA0 SENTRON MCCB, 125 A, 3-Pole, TM12

MPN3VA1112-5MH36-0AA0
Active

Siemens SENTRON 3VA1112-5MH36-0AA0, molded case circuit breaker, 3-pole, 125 A (40 °C), TM120M thermal-magnetic release, 187 kA at 240 V AC.

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

3VA1112-5MH36-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA1112-5MH36-0AA0 — 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.28.1 W
3VA1112-5MH36-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM120M
Overcurrent protection functionI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1112-5MH36-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typebox terminal on both sides
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1112-5MH36-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1112-5MH36-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1112-5MH36-0AA0 — 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

Siemens 3VA1112-5MH36-0AA0 — 125 A SENTRON MCCB for Motor and Starter Protection

Rated 125 A continuously at 40 °C, it holds that same rating through 50 °C, then derates to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C — so in a warm panel near the upper ambient limit, you lose about 9 % of your headroom. Breaking capacity is voltage-dependent: 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.

The 3VA1112-5MH36-0AA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or screw-mounted panel layouts without surprises.

Frequently asked questions

What is the breaking capacity of 3VA1112-5MH36-0AA0 at 240 V?

187 kA at 240 V AC, which is very high for this frame size — suitable for applications with large upstream transformers or high available fault current.

Where can I buy 3VA1112-5MH36-0AA0 and how is it quoted?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time.

What is the thermal derating curve for 3VA1112-5MH36-0AA0?

Rated 125 A from 40 °C through 50 °C, then derates to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C.

MPN
3VA1112-5MH36-0AA0