Siemens SENTRON 3VA2040-8HN32-0AA0, molded case circuit breaker, 3-pole, 40 A, ETU350 electronic trip unit, 440 kA breaking capacity at 240 V, IP40 front.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Current at 40 °C | 40 A |
| Current at 45 °C | 40 A |
| Current at 50 °C | 40 A |
| Current at 55 °C | 40 A |
| Current at 60 °C | 40 A |
| Current at 65 °C | 40 A |
| Current at 70 °C | 40 A |
| Switching capacity class | L |
| Breaking capacity at 240 V | 440 kA |
| Breaking capacity at 415 V | 330 kA |
| Breaking capacity at 440 V | 330 kA |
| Breaking capacity at 500 V | 220 kA |
| Breaking capacity at 690 V | 53 kA |
| Power loss, max. | 1.2 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU350 |
| Overcurrent protection function | LSI |
| Ground-fault monitoring | Without |
| 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 |
|---|---|
| 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 |
|---|---|
| Height | 181 mm |
| Width | 105 mm |
| Depth | 86 mm |
| Height (in) | 7.1 in |
| Width (in) | 4.1 in |
| Depth (in) | 3.4 in |
The 440 kA breaking capacity at 240 V (330 kA at 415 V, 220 kA at 500 V, 53 kA at 690 V) puts this squarely in the high-fault-current class for industrial switchboards and transformer secondaries where available fault current is severe.
The ETU350 offers adjustable long-time (lg) and instantaneous (li) pickup settings — li is fixed at 480 A minimum and maximum, lg minimum is 0.4 s. Optional motor drive available for remote operation.
Submit an RFQ through this listing; the part is sourced to order and current pricing and availability are confirmed at quote time.
440 kA at 240 V, 330 kA at 415 V, 220 kA at 500 V, and 53 kA at 690 V.
An ETU350 electronic trip unit with adjustable long-time (lg minimum 0.4 s) and instantaneous (li fixed at 480 A) settings.
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