The 400 A rating holds flat from 40 °C to 50 °C, then derates linearly to 340 A at 70 °C — useful if the breaker sits in a warm enclosure or near other heat sources. Dimensions are 248 mm high, 184 mm wide, and 110 mm deep — check your enclosure depth before committing, especially on retrofit panels where the backplate clearance is tight. Maximum power loss is 96 W at rated current; factor that into your thermal budget if the panel has limited ventilation or multiple breakers ganged together.
Siemens 3VA2340-5HL42-0AH0 SENTRON MCCB, 400 A, 4-Pole, 187
MPN3VA2340-5HL42-0AH0
Siemens SENTRON 3VA2340-5HL42-0AH0 molded case circuit breaker, 400 A continuous, 4-pole, line protection, 187 kA breaking at 240 V.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA2340-5HL42-0AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 400 A |
| Current at 45 °C | 400 A |
| Current at 50 °C | 400 A |
| Current at 55 °C | 385 A |
| Current at 60 °C | 370 A |
| Current at 65 °C | 355 A |
| Current at 70 °C | 340 A |
| Switching capacity class | M |
| Breaking capacity at 240 V | 187 kA |
| Breaking capacity at 415 V | 121 kA |
| Breaking capacity at 440 V | 121 kA |
| Breaking capacity at 500 V | 75.6 kA |
| Breaking capacity at 690 V | 7.5 kA |
| Power loss, max. | 96 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU320 |
| Overcurrent protection function | LI |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | on both sides nut keeper kit |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | No |
| Trip indicator | Yes |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 3 |
| Parameter | Value |
|---|---|
| Operating temperature, max. | 70 °C |
| Operating temperature, min. | -25 °C |
| Storage temperature, max. | 80 °C |
| Storage temperature, min. | -40 °C |
| Parameter | Value |
|---|---|
| Mechanical service life (operating cycles), typ. | 20 000 |
| Height | 248 mm |
| Width | 184 mm |
| Depth | 110 mm |
| Height (in) | 9.76 in |
| Width (in) | 7.24 in |
| Depth (in) | 4.33 in |
Product details
MPN
3VA2340-5HL42-0AH0