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Siemens 3VA1140-3EF32-0BC0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1140-3EF32-0BC0 SENTRON MCCB, 40 A, 3-Pole, TM240

MPN3VA1140-3EF32-0BC0

Siemens SENTRON 3VA1140-3EF32-0BC0, Molded case circuit breaker, 3-pole, TM240 release, 40 A at 40 °C, 75.6 kA at 240 V, undervoltage release, 2 HQ auxiliary switches.

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

3VA1140-3EF32-0BC0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
Integrated auxiliary / alarm switch ref.3VA9988-0AA12
3VA1140-3EF32-0BC0 — Ratings
ParameterValue
Number of poles3
Current at 40 °C40 A
Current at 45 °C40 A
Current at 50 °C40 A
Current at 55 °C38.4 A
Current at 60 °C37.6 A
Current at 65 °C36.8 A
Current at 70 °C36 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
3VA1140-3EF32-0BC0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
3VA1140-3EF32-0BC0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1140-3EF32-0BC0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1140-3EF32-0BC0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1140-3EF32-0BC0 — Mechanical
ParameterValue
Height130 mm
Width76.2 mm
Depth70 mm

Product details

Line protection MCCB with TM240 release

The interrupting capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — numbers that govern the available fault current the breaker can clear without upstream coordination issues.

The 40 A rating holds flat from 40 °C to 50 °C, then derates to 38.4 A at 55 °C and 36 A at 70 °C. The TM240 release provides thermal protection for overloads and magnetic trip for short-circuits; there's no separate ground-fault or voltage-trigger function built in. The interrupting ratings at 240 V (75.6 kA), 415 V (52.5 kA), and 440 V (32 kA) cover most industrial distribution panels.

Integrated undervoltage release and auxiliary contacts

Dimensions are 130 mm high, 76.2 mm wide, and 70 mm deep — fits standard 3-pole MCCB panel cutouts. The breaker is rated for 15 000 mechanical/electrical operations (latching endurance), a solid figure for typical industrial duty.

Frequently asked questions

Where can I buy 3VA1140-3EF32-0BC0 and how is it quoted?

This MCCB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What are the key interrupting ratings for 3VA1140-3EF32-0BC0?

At 240 V it clears 75.6 kA, at 415 V it clears 52.5 kA, at 440 V it clears 32 kA, and at 690 V it clears 10.5 kA.

Does 3VA1140-3EF32-0BC0 include an undervoltage release?

Yes, it ships with an integrated undervoltage release (UVR) as the auxiliary release design.

MPN
3VA1140-3EF32-0BC0