Siemens SENTRON 3VA1140-4EE36-0AA0, 3-pole molded case circuit breaker, 40 A rated current, 121 kA interrupting at 240 V, TM220 overcurrent release, line protection.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| 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 | TM220 |
| 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 | 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 | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
| Height (in) | 5.12 in |
| Width (in) | 3 in |
| Depth (in) | 2.76 in |
It carries a 40 A continuous rating at 40 °C and breaks up to 121 kA at 240 V, 75.6 kA at 415 V, and 52.5 kA at 440 V — the interrupting capacity drops to 11.9 kA at 500 V and 690 V, so verify your fault level at the service voltage.
Three poles, 40 A frame, with a TM220 thermal-magnetic overcurrent release. The 40 A rating holds steady up to 50 °C; at 55 °C it derates to 39 A, and at 70 °C to 37 A — useful if the breaker sits in a warm enclosure near other heat sources.
Submit an RFQ — this part is sourced and quoted to order, with availability and current pricing confirmed at quote time.
121 kA at 240 V, with 75.6 kA at 415 V and 52.5 kA at 440 V — the interrupting capacity drops to 11.9 kA at 500 V and 690 V.
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