Siemens SENTRON molded case circuit breaker, 3VA1080-4ED42-0BH0, 80 A, 4-pole, 121 kA breaking capacity at 240 V AC, line protection design, with undervoltage release and auxiliary switches.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA10804ED420AA0 |
| 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 | 80 A |
| Current at 45 °C | 80 A |
| Current at 50 °C | 80 A |
| Current at 55 °C | 78 A |
| Current at 60 °C | 77 A |
| Current at 65 °C | 75 A |
| Current at 70 °C | 74 A |
| Switching capacity class | S |
| Breaking capacity at 240 V | 121 kA |
| Breaking capacity at 415 V | 75.6 kA |
| Breaking capacity at 440 V | 52.5 kA |
| Breaking capacity at 500 V | 11.9 kA |
| Breaking capacity at 690 V | 11.9 kA |
| Power loss, max. | 21.7 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM210 |
| Overcurrent protection function | LI |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | nut keeper kit on both ends |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | Yes |
| Voltage trigger | No |
| Trip indicator | Yes |
| Communication function | No |
| Measurement function | No |
| Motor drive option | No |
| 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 | 130 mm |
| Width | 101.6 mm |
| Depth | 70 mm |
| Height (in) | 5.12 in |
| Width (in) | 4 in |
| Depth (in) | 2.76 in |
The Siemens SENTRON 3VA1080-4ED42-0BH0 is a 4-pole molded case circuit breaker rated at 80 A continuous current at 40 °C ambient, with a breaking capacity of 121 kA at 240 V AC.
Rated uninterrupted current holds at 80 A from 40 °C up to 50 °C, then derates gradually to 74 A at 70 °C — useful for high-ambient enclosures without oversizing the frame. Breaking capacity drops with system voltage: 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V.
The breaking capacity is 121 kA at 240 V AC, with lower ratings at higher system voltages (75.6 kA at 415 V, 52.5 kA at 440 V, 11.9 kA at 690 V).
It includes an undervoltage release (UVR) plus 2 auxiliary switches and 1 trip alarm switch (HQ configuration).
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
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