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Siemens 3VA1140-3ED42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1140-3ED42-0AA0 SENTRON MCCB, 40 A, 4-Pole, 52.5

MPN3VA1140-3ED42-0AA0
Active

Siemens SENTRON 3VA1140-3ED42-0AA0, 4-pole molded case circuit breaker, 40 A rated current, TM210 thermal-magnetic release, line protection version, breaking capacities up to 75.6 kA at 240 V AC.

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

3VA1140-3ED42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
3VA1140-3ED42-0AA0 — Ratings
ParameterValue
Number of poles4
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C40 A
Current at 45 °C40 A
Current at 50 °C40 A
Current at 55 °C39 A
Current at 60 °C39 A
Current at 65 °C38 A
Current at 70 °C37 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.10.8 W
3VA1140-3ED42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM210
Overcurrent protection functionLI
Ground-fault monitoringWithout
3VA1140-3ED42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1140-3ED42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1140-3ED42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1140-3ED42-0AA0 — Mechanical
ParameterValue
Height130 mm
Width101.6 mm
Depth70 mm
Height (in)5.12 in
Width (in)4 in
Depth (in)2.76 in

Product details

What this 40 A MCCB does in the panel

The Siemens 3VA1140-3ED42-0AA0 is a SENTRON 4-pole molded case circuit breaker rated 40 A continuous at 40 °C, with a TM210 thermal-magnetic release for line protection. Four poles let it switch three-phase plus neutral in a single unit, saving DIN rail space over separate breakers.

Breaking capacity across voltages — where it fits

This MCCB delivers 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.

Thermal derating — what the 40 A means at panel ambient

At 55 °C it derates to 39 A, at 65 °C to 38 A, and at 70 °C to 37 A. The 10.8 W maximum power loss is modest for a 4-pole 40 A breaker; it won't drive significant internal heating in a ventilated enclosure.

The 101.6 mm width is 4 inches — standard for a 4-pole MCCB footprint on DIN rail or panel-mount.

Frequently asked questions

What is the breaking capacity of 3VA1140-3ED42-0AA0 at 415 V?

52.5 kA at 415 V AC. This is the key rating for European 400 V industrial panels — it handles high prospective fault currents from large transformers without requiring an upstream current-limiting fuse.

What is the rated current of 3VA1140-3ED42-0AA0 and how does it derate with temperature?

40 A at 40 °C to 50 °C (–). It derates to 39 A at 55 °C and 60 °C, 38 A at 65 °C, and 37 A at 70 °C. If your panel ambient exceeds 50 °C, factor in the 1–3 A reduction to avoid nuisance tripping.

Where can I buy 3VA1140-3ED42-0AA0 and how is it quoted?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here. Submit an RFQ for a firm quote with lead time.

MPN
3VA1140-3ED42-0AA0