Skip to main content
Log in
Siemens 3VA2040-8HL42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2040-8HL42-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU32

MPN3VA2040-8HL42-0AA0
Active

Siemens SENTRON 3VA2 series, Molded case circuit breaker, 3VA2040-8HL42-0AA0, 40 A, 4-pole, ETU320 electronic trip unit, 440 kA at 240 V AC, IP40 front.

Siemens 3VA2040-8HL42-0AA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VA2040-8HL42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2040-8HL42-0AA0 — 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 classL
Breaking capacity at 240 V440 kA
Breaking capacity at 415 V330 kA
Breaking capacity at 440 V330 kA
Breaking capacity at 500 V220 kA
Breaking capacity at 690 V52.5 kA
Power loss, max.1.2 W
3VA2040-8HL42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU320
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA2040-8HL42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2040-8HL42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2040-8HL42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2040-8HL42-0AA0 — 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

SENTRON 3VA2 — 40 A line protection MCCB with ETU320

Breaking capacity is 440 kA at 240 V AC, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V — figures that place it well into the high-interrupting category for industrial service-entrance or sub-distribution boards where fault currents are substantial.

The breaker has no undervoltage release, no voltage trigger, and no communication function — it is a pure line-protection device. Ground-fault monitoring is not integrated; if GF protection is needed, pair it with an external module or specify a different variant.

ETU320 trip unit — what it means for coordination

The ETU320 is an electronic trip unit with adjustable overload (Ir) and short-circuit (Isd, Ii) thresholds, plus a time-delay setting for short-delay (tsd). That adjustability lets the site electrical engineer tune selectivity with downstream breakers without swapping trip packs — a practical advantage over fixed thermal-magnetic units when the load profile or fault-current study changes after commissioning.

Frequently asked questions

Who supplies 3VA2040-8HL42-0AA0 and how is it quoted for volume purchases?

We source this part through independent distribution channels and quote it to order against an RFQ. Availability and current pricing are confirmed at quote time — send the quantity and target delivery window for a firm offer.

What compliance documentation does Siemens provide for 3VA2040-8HL42-0AA0?

Siemens SENTRON MCCBs are typically supplied with CE, UL, and IEC certifications, plus RoHS and REACH declarations. The specific documentation package for this order code can be included with the shipment or provided digitally upon request.

What are the key ratings for 3VA2040-8HL42-0AA0?

Rated continuous current is 40 A, insulation voltage 800 V, breaking capacity 440 kA at 240 V AC and 330 kA at 415/440 V. It is a 4-pole unit with an ETU320 electronic trip unit, IP40 front protection, and dimensions 181 x 140 x 86 mm.

MPN
3VA2040-8HL42-0AA0