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Siemens 3VA2340-5HN42-0DA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2340-5HN42-0DA0 SENTRON MCCB, 400 A, 4-Pole, 187

MPN3VA2340-5HN42-0DA0

Siemens SENTRON 3VA2340-5HN42-0DA0, molded case circuit breaker, 400 A, 4-pole, line protection, undervoltage release, 187 kA at 240 V, 110 x 184 x 248 mm.

Siemens 3VA2340-5HN42-0DA0 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

3VA2340-5HN42-0DA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA2340-5HN42-0AA0
3VA2340-5HN42-0DA0 — Ratings
ParameterValue
Number of poles4
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C400 A
Current at 45 °C400 A
Current at 50 °C400 A
Current at 55 °C385 A
Current at 60 °C370 A
Current at 65 °C355 A
Current at 70 °C340 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 V7.5 kA
Power loss, max.98.5 W
3VA2340-5HN42-0DA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU350
Overcurrent protection functionLSI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA2340-5HN42-0DA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2340-5HN42-0DA0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2340-5HN42-0DA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2340-5HN42-0DA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height248 mm
Width184 mm
Depth110 mm
Height (in)9.76 in
Width (in)7.24 in
Depth (in)4.33 in

Product details

MCCB for high-fault panel builds

Thermal reality check

Above that, it derates linearly: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. For a panel OEM wireman packing breakers into a closed enclosure, that derating curve is the real limit — not the label.

The 184 mm width and 248 mm height are standard for the 3VA2 frame family; if you are replacing a 3VA2116-5JP32-0AE0 or similar, the physical footprint and mounting pattern are the same — no panel rework needed. The undervoltage release is wired separately; verify your control voltage matches the release coil rating before installation.

Frequently asked questions

How do I get current pricing and availability for 3VA2340-5HN42-0DA0?

Submit an RFQ through this listing. The part is sourced to order via independent distribution; pricing and stock levels are confirmed at quote time.

What is 3VA2340-5HN42-0DA0's interrupting capacity at 415 V?

121 kA at 415 V, which covers most industrial secondary-side fault scenarios. At 240 V it is 187 kA, and at 690 V it drops to 7.5 kA — the arc extinction physics change above 600 V.

Does this MCCB include an undervoltage release?

Yes, the -0DA0 suffix indicates a built-in undervoltage release (UVR). It is designed for line protection with no communication or ground-fault monitoring on this variant.

What are the physical dimensions of 3VA2340-5HN42-0DA0?

110 mm depth, 184 mm width, 248 mm height — standard 3VA2 frame size. It fits existing panel cutouts for this frame family.

MPN
3VA2340-5HN42-0DA0