Rated 50 A across the 40–50 °C range, derating to 45 A at 70 °C — the thermal-magnetic TM240 release holds the continuous load curve without nuisance tripping in a warm enclosure. Three-pole construction suits three-phase feeders, motor branch circuits, or main disconnects in a panelboard. Interrupting capacity steps down with voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500/690 V. That 187 kA figure at 240 V is the one that governs most North American 480Y/277 V panel applications where the available fault current exceeds 100 kA — this breaker handles it without an upstream current-limiting fuse. The TM240 release is a fixed thermal-magnetic type — no interchangeable trip unit, which simplifies spares but means the breaker is dedicated to the 50 A rating.
Siemens 3VA1150-5EF32-0AD0 SENTRON MCCB, 50 A, 3-Pole, 187 k
MPN3VA1150-5EF32-0AD0
Siemens SENTRON 3VA1150-5EF32-0AD0, molded case circuit breaker, 3-pole, 50 A, TM240 release, 187 kA interrupting at 240 V.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA11505EF320AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| 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 | M |
| Breaking capacity at 240 V | 187 kA |
| Breaking capacity at 415 V | 121 kA |
| Breaking capacity at 440 V | 75.6 kA |
| Breaking capacity at 500 V | 17 kA |
| Breaking capacity at 690 V | 17 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 | nut keeper kit on both ends |
| 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 | 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 |
Product details
Frequently asked questions
Where can I buy 3VA1150-5EF32-0AD0 and what is the lead time?
This MCCB is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
What is the interrupting capacity of 3VA1150-5EF32-0AD0 at 240 V?
187 kA at 240 V, stepping down to 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500/690 V.
What is the continuous current rating of 3VA1150-5EF32-0AD0?
50 A at 40–50 °C, derating to 45 A at 70 °C.
Does 3VA1150-5EF32-0AD0 include auxiliary switches?
Yes, it includes three auxiliary switches HQ built in.
MPN
3VA1150-5EF32-0AD0