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Siemens 3VA2040-7HL42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2040-7HL42-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU32

MPN3VA2040-7HL42-0AA0
Active

Siemens SENTRON 3VA2040-7HL42-0AA0, molded case circuit breaker, 4-pole, 40 A continuous, ETU320 electronic trip unit, adjustable 60–480 A, SCCR 330 kA at 240 V.

Siemens 3VA2040-7HL42-0AA0 datasheet (PDF)
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

3VA2040-7HL42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2040-7HL42-0AA0 — 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 °C40 A
Current at 60 °C40 A
Current at 65 °C40 A
Current at 70 °C40 A
Switching capacity classC
Breaking capacity at 240 V330 kA
Breaking capacity at 415 V242 kA
Breaking capacity at 440 V242 kA
Breaking capacity at 500 V187 kA
Breaking capacity at 690 V3 kA
Power loss, max.1.2 W
3VA2040-7HL42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU320
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA2040-7HL42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2040-7HL42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2040-7HL42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2040-7HL42-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.25 000
Height181 mm
Width140 mm
Depth86 mm
Height (in)7.13 in
Width (in)5.51 in
Depth (in)3.39 in

Product details

The Siemens SENTRON 3VA2040-7HL42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 40 A continuous current across the full ambient range from -25 °C to 70 °C — no derating needed up to that ceiling. The interrupting ratings are per the evidence: 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 3 kA at 690 V.

The 4-pole width (140 mm) is standard for a 4-pole MCCB in this frame size; it mounts via the front-panel cutout with screw terminals. The IP40 front protection means it's suitable for installation in a dry indoor enclosure where tools or fingers won't contact live parts from the front.

Frequently asked questions

Where can I buy 3VA2040-7HL42-0AA0 and what is the lead time?

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 lead-time number is published here.

What is the closest functional second-source to 3VA2040-7HL42-0AA0?

The closest peer in the same SENTRON 3VA family is the 3VA2025-8HM42-0AA0, which is also a 4-pole MCCB but with a different trip unit and rating. The 3VA2040-7HL42-0AA0 uses the ETU320 electronic trip with a 40 A continuous rating and adjustable 60–480 A range; the 3VA2025-8HM42-0AA0 has a different trip curve and lower continuous rating. They share the same frame footprint, so a panel cutout designed for one will accept the other, but the protection settings differ — verify coordination before swapping.

What is the depth of 3VA2040-7HL42-0AA0?

The depth is 86 mm (3.39 in).

What is the width of 3VA2040-7HL42-0AA0?

The width is 140 mm (5.51 in).

Will 3VA2040-7HL42-0AA0 drop into a panel specified around 3VA2025-8HM42-0AA0 without rewiring?

Yes, the 4-pole frame footprint is the same across the 3VA2xxx-xxx42-0AA0 variants, so the physical cutout and mounting dimensions are identical. The terminal layout and bus-bar connections are compatible. However, the trip unit and continuous rating differ — the 3VA2040-7HL42-0AA0 carries a 40 A continuous rating with the ETU320 electronic trip adjustable 60–480 A, while the 3VA2025-8HM42-0AA0 has a different trip curve. Verify the protection settings match the circuit requirements before installation.

MPN
3VA2040-7HL42-0AA0