Siemens SENTRON 3VA1150-4EF32-0AF0, molded case circuit breaker, 3-pole, 50 A rated continuous current Iu, TM240 thermal-magnetic release, interrupting capacity 121 kA at 240 V, depth 70 mm, width 76.2 mm.
| 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 | No |
| Voltage trigger | No |
| Trip indicator | Yes |
| 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 |
|---|---|
| Height | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
The 3VA1150-4EF32-0AF0: Rated 50 A all the way to 50 °C ambient. At 55 °C it's 48 A, at 60 °C it's 47 A, and at 70 °C it's 45 A. That's a gentle slope — you don't lose much headroom until the panel gets truly hot. The TM240 release is adjustable for the long-time pickup, so you can dial it to match the load without swapping the breaker.
The 70 mm depth means it won't crowd the gland plate in a shallow enclosure.
75.6 kA at 415 V. That's well above typical industrial secondary-side fault levels; it clears a bolted fault without upstream coordination headaches.
The 3VA1150 is physically larger — 76.2 mm wide versus the 3VA1010's narrower frame. Same DIN-rail mounting concept, but the cutout and bus spacing may differ. You'll want to verify the footprint against the existing panel layout before swapping.
Standard Siemens SENTRON documentation package includes RoHS and REACH declarations, plus IEC 60947-2 and UL 489 certifications. Specific certificates are available on request at quote time.
Sourced and quoted to order against an RFQ through independent industrial distribution. Availability and current pricing confirmed at quote time — no stock count or price published here.
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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