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Siemens 3VA1120-4EE32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1120-4EE32-0AA0 SENTRON MCCB, 20 A, 3-Pole, 121 k

MPN3VA1120-4EE32-0AA0
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Siemens SENTRON 3VA1120-4EE32-0AA0, molded case circuit breaker, 3-pole, 20 A rated at 40 °C, TM220 release, line protection, breaking capacity 121 kA at 240 V AC.

Siemens 3VA1120-4EE32-0AA0 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

3VA1120-4EE32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA1120-4EE32-0AA0 — 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 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.12 W
3VA1120-4EE32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM220
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1120-4EE32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1120-4EE32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1120-4EE32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1120-4EE32-0AA0 — 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

The Siemens SENTRON 3VA1120-4EE32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated 20 A at 40 °C, designed for line protection in distribution panels.

Breaking capacity across voltages

Breaking capacity drops as voltage rises: 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. At 690 V the 11.9 kA figure is the limiting factor — verify the available fault current at the point of installation before specifying this breaker for a 690 V feeder. The 3-pole frame and 70 mm depth fit standard panel layouts; front-side IP40 protection suits indoor enclosures where tools or fingers won't contact live parts.

Integration notes

The 76.2 mm width (3 in) occupies three 18 mm module spaces on a DIN rail — plan for that footprint during panel layout. The TM220 release is fixed — not field-interchangeable — so confirm the 20 A rating matches the protected circuit before installation.

Frequently asked questions

Where can I buy 3VA1120-4EE32-0AA0?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a firm price and lead time.

What is the breaking capacity of 3VA1120-4EE32-0AA0 at 240 V?

The breaking capacity is 121 kA at 240 V AC, which allows this MCCB to clear high fault currents typical of main feeders in industrial panels without cascading upstream.

What is the difference between 3VA1120-4EE32-0AA0 and 3VA1110-5ED32-0AA0?

The 3VA1110-5ED32-0AA0 is a lower-rated variant in the same SENTRON 3VA family. The 3VA1120-4EE32-0AA0 carries a 20 A TM220 release and 121 kA breaking capacity at 240 V, while the 3VA1110-5ED32-0AA0 uses a different release and rating. Physical dimensions (70 mm depth, 76.2 mm width, 3-pole) are shared, so panel cutouts and wiring positions are identical — the swap is a straight drop-in if the ampacity matches the circuit.

MPN
3VA1120-4EE32-0AA0