The Siemens SENTRON 3VM1225-5EE36-0AA2 is a 3-pole molded case circuit breaker rated for 250 A continuous at 40 °C, with a TM220 thermal-magnetic overcurrent release designed for line protection. It breaks up to 187 kA at 240 V AC and 121 kA at 415 V AC, so it handles high-fault utility feeds or transformer secondaries without cascading upstream — the interrupting capacity at 415 V is the number that governs most industrial panel coordination studies. Thermal derating starts at 55 °C: 243.3 A at 55 °C, 236.5 A at 60 °C, 229.8 A at 65 °C, 223 A at 70 °C.
Siemens 3VM1225-5EE36-0AA2 SENTRON MCCB, 250 A, 3-Pole
MPN3VM1225-5EE36-0AA2
Siemens SENTRON 3VM1225-5EE36-0AA2, molded case circuit breaker, 3-pole, 250 A, TM220 release, line protection, 70 x 105 x 158 mm.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| 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 | 250 A |
| Current at 45 °C | 250 A |
| Current at 50 °C | 250 A |
| Current at 55 °C | 243.3 A |
| Current at 60 °C | 236.5 A |
| Current at 65 °C | 229.8 A |
| Current at 70 °C | 223 A |
| Switching capacity class | M |
| Breaking capacity at 240 V | 187 kA |
| Breaking capacity at 415 V | 121 kA |
| Breaking capacity at 440 V | 76 kA |
| Breaking capacity at 500 V | 30 kA |
| Power loss, max. | 57 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 connection |
| 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 | No |
| 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. | 15 000 |
| Height | 158 mm |
| Width | 105 mm |
| Depth | 70 mm |
| Height (in) | 6.22 in |
| Width (in) | 4.13 in |
| Depth (in) | 2.76 in |
Product details
Frequently asked questions
Where can I buy 3VM1225-5EE36-0AA2 and how is it quoted?
It is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here.
What are the key ratings for 3VM1225-5EE36-0AA2?
Rated 250 A continuous at 40 °C, 3-pole, breaking capacity of 187 kA at 240 V AC and 121 kA at 415 V AC, insulation voltage 800 V, operating voltage 690 V AC. Thermal derating applies above 50 °C.
Will 3VM1225-5EE36-0AA2 drop into a panel built for 3VA1112-5EE32-0AA0?
The 3VM1225 frame shares the SENTRON molded-case footprint but is a different series — the 3VA series carries a different release design and accessory layout. Mounting dimensions (70 x 105 x 158 mm) are identical, so the physical cutout and DIN-rail position match, but verify the terminal arrangement and accessory compatibility before assuming a drop-in swap.
MPN
3VM1225-5EE36-0AA2