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

Siemens SENTRON 3VA1120-3EF32-0AG0 MCCB, 20 A, 3-Pole, TM240

MPN3VA1120-3EF32-0AG0

Siemens SENTRON series, Molded case circuit breaker, 3VA1120-3EF32-0AG0, 3-pole, 20 A rated continuous current, TM240 thermal-magnetic release, 75.6 kA 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

3VA1120-3EF32-0AG0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
Integrated auxiliary / alarm switch ref.3VA9988-0AB11
3VA1120-3EF32-0AG0 — Ratings
ParameterValue
Number of poles3
Current at 40 °C20 A
Current at 45 °C20 A
Current at 50 °C20 A
Current at 55 °C19.2 A
Current at 60 °C18.8 A
Current at 65 °C18.4 A
Current at 70 °C18 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 690 V10.5 kA
3VA1120-3EF32-0AG0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
3VA1120-3EF32-0AG0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1120-3EF32-0AG0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1120-3EF32-0AG0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1120-3EF32-0AG0 — Mechanical
ParameterValue
Height130 mm
Width76.2 mm
Depth70 mm

Product details

The TM240 thermal-magnetic release gives a fixed thermal curve with magnetic trip factory-set; no field-adjustable trip unit, so the coordination study is locked at the order code.

Interrupting capacity — what the voltage-specific kA ratings mean for panel coordination

This MCCB delivers 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. For a 415 V distribution board with a transformer-sized available fault current of 50 kA, this breaker has 2.5 kA of headroom; at 690 V the same breaker only clears 10.5 kA, so verify the utility-side SCCR before committing it to a 690 V line.

The front face carries the trip indicator and the toggle handle;

What it does not include

If you need remote trip or ground-fault protection, you step up to a different 3VA variant with those accessories built in or ordered separately. The TM240 release is non-adjustable — the thermal curve and magnetic pickup are fixed at the factory.

Frequently asked questions

How do I get current pricing and availability for 3VA1120-3EF32-0AG0?

Submit an RFQ through this listing. Pricing and lead time are confirmed at quote time through independent distribution channels.

What is 3VA1120-3EF32-0AG0's listed depth?

The depth is 70 mm. Overall dimensions are 130 mm high by 76.2 mm wide by 70 mm deep.

Will 3VA1120-3EF32-0AG0 drop into a panel specified around 3VA1010-4ED32-0AC0 without rewiring?

Both are 3-pole SENTRON 3VA frame breakers sharing the same mounting footprint and terminal layout, so the physical swap is straightforward. The difference is the release: the 3VA1120-3EF32-0AG0 carries a TM240 thermal-magnetic release rated 20 A, while the 3VA1010-4ED32-0AC0 uses a different trip unit. Verify the load current and coordination study before swapping — the breaker fits the panel, but the protection settings may not match.

MPN
3VA1120-3EF32-0AG0