Siemens SENTRON 3VA1140-4EF36-0KC0, molded case circuit breaker, 3-pole, 40 A, breaking capacity 121 kA at 240 V, 75.6 kA at 415 V, line protection design.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA11404EF360AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 40 A |
| Current at 45 °C | 40 A |
| Current at 50 °C | 40 A |
| Current at 55 °C | 39 A |
| Current at 60 °C | 39 A |
| Current at 65 °C | 38 A |
| Current at 70 °C | 37 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. | 10.8 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM240 |
| Overcurrent protection function | LI |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | box terminal on both sides |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | Yes |
| Trip indicator | No |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 2 |
| 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 | 76.2 mm |
| Depth | 70 mm |
| Height (in) | 5.12 in |
| Width (in) | 3 in |
| Depth (in) | 2.76 in |
Its interrupting capacity hits 121 kA at 240 V and 75.6 kA at 415 V — numbers that matter when coordinating with upstream gear for fault clearance under high available fault current.
Full 40 A rating holds up to 50 °C. Above that, it derates: 39 A at 55 °C, 38 A at 65 °C, and 37 A at 70 °C.
Interrupting capacity drops as voltage rises: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
This part is sourced to order against an RFQ through independent distribution. Submit a request for quote to confirm availability and current pricing.
The depth is 70 mm (2.76 in).
The width is 76.2 mm (3 in).
Both are 3-pole SENTRON MCCBs with the same 70 mm depth and 76.2 mm width, so the physical footprint matches. However, the 3VA1140-4EF36-0KC0 carries a 40 A rating and higher interrupting capacities (121 kA at 240 V) compared to the 3VA1110-5ED36-0AC0 — verify the load current and available fault current before swapping.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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