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Siemens 3VA1120-6EF32-0AG0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1120-6EF32-0AG0 SENTRON MCCB, 20A, 220 kA at 240V

MPN3VA1120-6EF32-0AG0

Siemens SENTRON 3VA1120-6EF32-0AG0, molded case circuit breaker, 3-pole, TM240 release, 20 A rated at 40 °C, 220 kA interrupting at 240 V.

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

3VA1120-6EF32-0AG0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11206EF320AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AB11
3VA1120-6EF32-0AG0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C20 A
Current at 45 °C20 A
Current at 50 °C20 A
Current at 55 °C20 A
Current at 60 °C19 A
Current at 65 °C19 A
Current at 70 °C19 A
Switching capacity classH
Breaking capacity at 240 V220 kA
Breaking capacity at 415 V154 kA
Breaking capacity at 440 V121 kA
Breaking capacity at 500 V17 kA
Breaking capacity at 690 V17 kA
Power loss, max.12 W
3VA1120-6EF32-0AG0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1120-6EF32-0AG0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1120-6EF32-0AG0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1120-6EF32-0AG0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1120-6EF32-0AG0 — 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

The interrupting ratings tell the real story: 220 kA at 240 V, 154 kA at 415 V, and still 121 kA at 440 V — numbers that put this in the high-interrupting-capacity class, sized for large transformer secondaries or high-fault industrial distribution panels.

That's a tight thermal curve; most MCCBs start sliding at 50 °C. Power loss maxes at 12 W, which matters for enclosure heat load if you're stacking several breakers.

Panel fit

Dimensions: 130 mm tall, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without surprises. The 70 mm depth means it clears shallow backpanels where some breakers with protruding arc chambers won't. The trip indicator is present, so a quick visual check confirms the breaker has tripped without needing to reset it to find out.

Frequently asked questions

What is the depth of 3VA1120-6EF32-0AG0?

The depth is 70 mm (2.76 in).

What is the width of 3VA1120-6EF32-0AG0?

The width is 76.2 mm (3 in).

MPN
3VA1120-6EF32-0AG0