Siemens SENTRON 3VA1150-4EF32-0BH0, molded case circuit breaker, 3-pole, 50 A, 121 kA at 240 V, TM240 overcurrent release, undervoltage release, 2 aux + 1 trip alarm switch.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Current at 40 °C | 50 A |
| Current at 45 °C | 50 A |
| Current at 50 °C | 50 A |
| Current at 55 °C | 48 A |
| Current at 60 °C | 47 A |
| Current at 65 °C | 46 A |
| Current at 70 °C | 45 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 690 V | 11.9 kA |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM240 |
| Parameter | Value |
|---|---|
| Main circuit connection type | lug terminal |
| 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 |
|---|---|
| Height | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
That makes it a straight line-protection breaker for fixed-load feeders, not a selective-maintenance tool. Undervoltage release (UVR) is built in, so it drops the load if supply voltage falls below the dropout threshold.
Footprint is 76.2 mm wide by 130 mm tall by 70 mm deep — a standard 3-pole MCCB envelope. Current derating is flat from 40 °C to 50 °C at 50 A, then drops to 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead-time estimate.
121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. The interrupting rating decreases as voltage increases, which is typical for MCCBs.
Both are 3-pole SENTRON MCCBs with the same frame height (130 mm) and depth (70 mm). The 3VA1110-5EE32-0DC0 has a different width and current rating — verify the busbar spacing and mounting hole pattern before assuming a direct swap.
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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