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Siemens 3VA1120-6EF32-0DC0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1120-6EF32-0DC0 SENTRON MCCB, 20A, 3-Pole, 220 kA

MPN3VA1120-6EF32-0DC0

Siemens SENTRON 3VA1120-6EF32-0DC0, molded case circuit breaker, 3-pole, 20 A, line protection, breaking capacity 220 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

3VA1120-6EF32-0DC0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11206EF320AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AA12
3VA1120-6EF32-0DC0 — 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.14.5 W
3VA1120-6EF32-0DC0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1120-6EF32-0DC0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1120-6EF32-0DC0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1120-6EF32-0DC0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1120-6EF32-0DC0 — 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

MCCB for high-fault panels

The Siemens SENTRON 3VA1120-6EF32-0DC0 is a 3-pole molded case circuit breaker (MCCB) rated for 20 A continuous current across its operating temperature range up to 55 °C, with a slight derating to 19 A at 60 °C and above. This is a line-protection design (not a motor-protective or feeder breaker), so it is sized for cable and busbar protection in a main or sub-distribution board.

Built-in undervoltage release and auxiliary contacts

Maximum power loss is 14.5 W, which matters for thermal management inside a sealed enclosure.

Dimensions are 130 mm height, 76.2 mm width (3 inches), 70 mm depth. The depth of 70 mm leaves room behind a 200 mm deep enclosure for wiring and the UVR coil.

Frequently asked questions

Where can I buy 3VA1120-6EF32-0DC0 and what is the lead time?

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 lead time and price.

What is the breaking capacity of this MCCB at different voltages?

220 kA at 240 V AC, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at both 500 V and 690 V.

Does this breaker include an undervoltage release?

Yes, it ships with a factory-installed undervoltage release (UVR) and two auxiliary switches (HQ design) for status feedback.

What are the physical dimensions of 3VA1120-6EF32-0DC0?

130 mm height, 76.2 mm width (3 inches), 70 mm depth — standard 3-pole MCCB footprint fitting three 18 mm DIN-rail modules.

What compliance documentation is available for this Siemens MCCB?

As a Siemens SENTRON product, it carries CE marking for the European market and is designed to IEC 60947-2. UL and CSA listings are typical for the 3VA series, but specific certification details should be confirmed from the manufacturer's declaration of conformity for this exact order code.

MPN
3VA1120-6EF32-0DC0