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Siemens 3VA1120-3EF32-0JC0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1120-3EF32-0JC0 SENTRON MCCB, 20 A, 3-Pole, 75.6

MPN3VA1120-3EF32-0JC0

Siemens SENTRON 3VA1120-3EF32-0JC0, molded case circuit breaker, 3-pole, 20 A rated current at 40 °C, breaking capacity 75.6 kA at 240 V AC, with shunt trip 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

3VA1120-3EF32-0JC0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11203EF320AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AA12
3VA1120-3EF32-0JC0 — 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 classN
Breaking capacity at 240 V75.6 kA
Breaking capacity at 415 V52.5 kA
Breaking capacity at 440 V32 kA
Breaking capacity at 500 V11.9 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.12 W
3VA1120-3EF32-0JC0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1120-3EF32-0JC0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1120-3EF32-0JC0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1120-3EF32-0JC0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1120-3EF32-0JC0 — 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

Breaking capacity hits 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V; at 500 V and 690 V it holds 11.9 kA. That covers most industrial service-entrance and feeder applications within a 480Y/277 V or 400 V distribution system. The 70 mm depth and 76.2 mm width fit standard Siemens 3VA mounting bases — no panel rework if swapping from an earlier 3VA frame.

Integrated accessories

The shunt trip allows remote tripping from a PLC or emergency-stop circuit, while the aux switches provide status feedback for the panel controller. The supplied basic switch is 3VA11203EF320AA0, so replacement of the switching mechanism alone is possible without replacing the entire breaker.

Frequently asked questions

Where can I buy 3VA1120-3EF32-0JC0 and how do I get a price?

This part is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time.

What is the breaking capacity of 3VA1120-3EF32-0JC0 at different voltages?

Breaking capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V.

What are the physical dimensions of 3VA1120-3EF32-0JC0?

The breaker measures 70 mm deep, 76.2 mm wide, and 130 mm high.

Does 3VA1120-3EF32-0JC0 include a shunt trip or auxiliary switches?

Yes, it ships with a factory-installed shunt trip release (STL) and two auxiliary switches HQ.

MPN
3VA1120-3EF32-0JC0