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Siemens 3VA2040-5HN32-0KG0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2040-5HN32-0KG0 SENTRON MCCB, 40 A, 3-Pole, 187 k

MPN3VA2040-5HN32-0KG0

Siemens SENTRON 3VA2040-5HN32-0KG0, molded case circuit breaker, 3-pole, 40 A continuous rating, 187 kA interrupting at 240 VAC, line protection design, with shunt trip (STL) and auxiliary switch + trip alarm.

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

3VA2040-5HN32-0KG0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA20405HN320AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AB11
3VA2040-5HN32-0KG0 — Ratings
ParameterValue
Number of poles3
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 °C40 A
Current at 60 °C40 A
Current at 65 °C40 A
Current at 70 °C40 A
Switching capacity classM
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 440 V121 kA
Breaking capacity at 500 V75.6 kA
Breaking capacity at 690 V3 kA
Power loss, max.2.2 W
3VA2040-5HN32-0KG0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU350
Overcurrent protection functionLSI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA2040-5HN32-0KG0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2040-5HN32-0KG0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA2040-5HN32-0KG0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2040-5HN32-0KG0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.25 000
Height181 mm
Width105 mm
Depth86 mm
Height (in)7.13 in
Width (in)4.13 in
Depth (in)3.39 in

Product details

The Siemens SENTRON 3VA2040-5HN32-0KG0 is a 3-pole molded case circuit breaker (MCCB) rated for 40 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That flat thermal curve simplifies panel sizing in a warm enclosure. Interrupting capacity is the headline: 187 kA at 240 VAC, dropping to 121 kA at 415/440 V, then 75.6 kA at 500 V, and 3 kA at 690 V. At typical 480 V distribution levels this breaker handles serious fault current without cascading upstream — a key selectivity point for a main or feeder position. The basic switch inside is order code 3VA20405HN320AA0.

No adapter plate needed for a direct swap within the same family.

Frequently asked questions

Where can I buy 3VA2040-5HN32-0KG0 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is 3VA2040-5HN32-0KG0's interrupting capacity at 240 V?

187 kA at 240 VAC. At 415/440 V it is 121 kA, at 500 V it is 75.6 kA, and at 690 V it is 3 kA.

Does this MCCB include a shunt trip?

Yes. It ships with a factory-integrated shunt trip (STL) auxiliary release, plus one auxiliary switch and one trip alarm switch.

MPN
3VA2040-5HN32-0KG0