The Siemens 3VA2440-5HN32-0BA0 is a SENTRON molded case circuit breaker rated for 400 A continuous across the full 40 °C to 70 °C ambient range — no derating needed until you push past 70 °C, which is rare inside a ventilated enclosure. That flat thermal curve simplifies panel sizing: you don't have to oversize the frame for a warm cabinet. Breaking capacity climbs to 187 kA at 240 V, drops to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 9 kA at 690 V. Three-pole construction, line-protection design — meaning it's configured for feeder and main breaker duty, not motor protection (no thermal overload curve matched to a motor start profile).
Siemens 3VA2440-5HN32-0BA0 SENTRON MCCB, 400 A, 3-Pole
MPN3VA2440-5HN32-0BA0
Siemens SENTRON 3VA2440-5HN32-0BA0, molded case circuit breaker, 3-pole, 400 A, line protection, with undervoltage release.
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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. | 3VA2440-5HN32-0AA0 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| 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 | 400 A |
| Current at 60 °C | 400 A |
| Current at 65 °C | 400 A |
| Current at 70 °C | 400 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 | 9 kA |
| Power loss, max. | 66 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU350 |
| Overcurrent protection function | LSI |
| 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 | Yes |
| Voltage trigger | No |
| Trip indicator | No |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 0 |
| 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 | 138 mm |
| Depth | 110 mm |
| Height (in) | 9.76 in |
| Width (in) | 5.43 in |
| Depth (in) | 4.33 in |
Product details
Frequently asked questions
What is the depth of 3VA2440-5HN32-0BA0?
The depth is 110 mm (4.33 in).
What is the width of 3VA2440-5HN32-0BA0?
The width is 138 mm (5.43 in).
Will 3VA2440-5HN32-0BA0 drop into a panel specified around 3VA2116-5JP32-0AE0 without rewiring?
No — the 3VA2440 frame is physically larger (138 mm wide vs the 3VA2116's narrower footprint) and rated for 400 A versus the 3VA2116's lower current class. The mounting hole pattern, bus spacing, and lug sizes differ. Panel rework or a new backplate is required.
MPN
3VA2440-5HN32-0BA0