Siemens SENTRON 3VA1140-6EF36-0DH0, molded case circuit breaker (MCCB), 3-pole, 40 A, 220 kA at 240 V AC, line protection, with undervoltage release and auxiliary switches.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA11406EF360AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| 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 | H |
| Breaking capacity at 240 V | 220 kA |
| Breaking capacity at 415 V | 154 kA |
| Breaking capacity at 440 V | 121 kA |
| Breaking capacity at 500 V | 17 kA |
| Breaking capacity at 690 V | 17 kA |
| Power loss, max. | 13.3 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 | Yes |
| 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 | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
| Height (in) | 5.12 in |
| Width (in) | 3 in |
| Depth (in) | 2.76 in |
The auxiliary contacts let the panel PLC or SCADA read the breaker's open/closed status and the trip alarm signals a separate fault indication. Physically it occupies 76.2 mm width (3 in) on the DIN rail or panel-mount footprint, 130 mm height, 70 mm depth.
At 55 °C it derates to 39 A, at 65 °C to 38 A, and at 70 °C to 37 A. For a panel that runs hot — say 55 °C inside — you lose only 1 A of headroom, so the 40 A frame still covers most 32 A or 36 A loads without upsizing.
This part is sourced through independent distribution and quoted to order against an RFQ. Submit a request for quote (RFQ) through this listing; availability and current pricing are confirmed at quote time.
The interrupting capacity at 240 V AC is 220 kA. At 415 V it is 154 kA, at 440 V it is 121 kA, and at 500 V or 690 V it is 17 kA.
It includes an undervoltage release (UVR), two auxiliary switches, and one trip alarm switch (HQ). The auxiliary switches provide status feedback; the UVR trips the breaker on control-voltage loss.
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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