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Siemens 3VA2440-8HN42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2440-8HN42-0AA0 SENTRON MCCB, 400 A, 4-Pole, ETU3

MPN3VA2440-8HN42-0AA0
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Siemens SENTRON 3VA2440-8HN42-0AA0, molded case circuit breaker, 4-pole, 400 A, ETU350 electronic trip unit, line protection version, breaking capacity 440 kA at 240 V AC.

Siemens 3VA2440-8HN42-0AA0 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

3VA2440-8HN42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
3VA2440-8HN42-0AA0 — Ratings
ParameterValue
Number of poles4
Current at 40 °C400 A
Current at 45 °C400 A
Current at 50 °C400 A
Current at 55 °C400 A
Current at 60 °C400 A
Current at 65 °C400 A
Current at 70 °C400 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 V53 kA
Power loss, max.63.5 W
3VA2440-8HN42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU350
Overcurrent protection functionLSI
Ground-fault monitoringWithout
3VA2440-8HN42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2440-8HN42-0AA0 — Accessories & Functions
ParameterValue
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2440-8HN42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2440-8HN42-0AA0 — Mechanical
ParameterValue
Height248 mm
Width184 mm
Depth110 mm
Height (in)9.8 in
Width (in)7.2 in
Depth (in)4.3 in

Product details

The Siemens 3VA2440-8HN42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 400 A continuous at 40 °C, with a 4-pole configuration and an ETU350 electronic trip unit. Breaking capacity reaches 440 kA at 240 V, 330 kA at 415 V, and 53 kA at 690 V — sufficient for high-fault utility feeds or transformer secondaries. The line protection version omits ground-fault monitoring and communication functions; a motor-drive option is available for remote switching.

The ETU350 trip unit offers adjustable long-time (I²t) and instantaneous (Ii) protection: Ii is fixed at 4400 A (11x In), and the neutral protection is configurable OFF, 50%, or 100% of phase current.

Front-face protection is IP40, suitable for indoor enclosures. The optional motor drive (order separately) enables remote closing and tripping for automated feeder control.

Frequently asked questions

Where can I buy 3VA2440-8HN42-0AA0 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 the closest functional second-source to 3VA2440-8HN42-0AA0?

The 3VA2110-8HN32-0AA0 is a smaller-frame sibling in the same SENTRON 3VA family, but it is a 3-pole 100 A breaker with a different trip unit — it will not drop into a panel designed for the 400 A 4-pole 3VA2440-8HN42-0AA0 without significant rewiring and a different mounting footprint.

What compliance documentation does this brand provide for 3VA2440-8HN42-0AA0?

Siemens SENTRON MCCBs typically carry UL, CSA, IEC, and CE certifications; RoHS and REACH declarations are available from the manufacturer. Specific documentation for this order code should be requested at RFQ time.

MPN
3VA2440-8HN42-0AA0