The Siemens SENTRON 3VA1150-3EF36-0HA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, with a continuous current of 50 A at 40 °C and a thermal-magnetic trip unit (TM240). Breaking capacity is 75.6 kA at 240 V, stepping down to 52.5 kA at 415 V and 32 kA at 440 V — enough for most industrial distribution panels with high fault current upstream. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a 3-pole footprint that fits standard SENTRON panel cutouts. Ambient operating range is -25 °C to 70 °C, with no derating needed up to 50 °C; above that, current drops linearly to 45 A at 70 °C.

Siemens 3VA1150-3EF36-0HA0 SENTRON MCCB, 50A, 75.6kA at 240V
Siemens SENTRON 3VA1150-3EF36-0HA0, 3-pole molded case circuit breaker, 50 A rated at 40 °C, breaking capacity 75.6 kA at 240 V, shunt trip release, line protection design.
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA11503EF360AA0 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 50 A |
| Current at 45 °C | 50 A |
| Current at 50 °C | 50 A |
| Current at 55 °C | 49 A |
| Current at 60 °C | 48 A |
| Current at 65 °C | 46 A |
| Current at 70 °C | 45 A |
| Switching capacity class | N |
| Breaking capacity at 240 V | 75.6 kA |
| Breaking capacity at 415 V | 52.5 kA |
| Breaking capacity at 440 V | 32 kA |
| Breaking capacity at 500 V | 11.9 kA |
| Breaking capacity at 690 V | 11.9 kA |
| Power loss, max. | 14.6 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 | 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 |
Product details
Frequently asked questions
How do I get current pricing and availability for 3VA1150-3EF36-0HA0?
Submit an RFQ through this listing; availability and current pricing are confirmed at quote time through independent distribution channels.
What is the breaking capacity of this MCCB at 240 V?
75.6 kA at 240 V, with 52.5 kA at 415 V and 32 kA at 440 V.
What is the rated current and derating curve?
Rated 50 A continuous at 40 °C, no derating up to 50 °C; then linearly derated to 45 A at 70 °C.