The Siemens SENTRON 3VA2220-7MS32-0CH0 is a 3-pole molded case circuit breaker (MCCB) with an adjustable thermal-magnetic trip unit covering 600 A to 3 000 A. It is designed for starter protection in motor branch circuits, meaning the trip curve is shaped to handle high inrush without nuisance trips while still clearing faults quickly. Breaking capacity ranges from 330 kA at 240 V down to 5.2 kA at 690 V — the 330 kA figure at 240 V is among the highest in its class, giving the breaker headroom for high-fault utility feeds or transformer secondaries. At 415/440 V it still holds 242 kA, enough for most industrial panelboards.

Siemens 3VA2220-7MS32-0CH0 SENTRON MCCB, 600-3000 A, 3-pole
Siemens SENTRON 3VA2220-7MS32-0CH0, molded case circuit breaker, 3-pole, adjustable thermal-magnetic trip 600–3000 A, breaking capacity 330 kA at 240 V, 200 A continuous at 40–70 °C.
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA2220-7MS32-0AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 200 A |
| Current at 45 °C | 200 A |
| Current at 50 °C | 200 A |
| Current at 55 °C | 200 A |
| Current at 60 °C | 200 A |
| Current at 65 °C | 200 A |
| Current at 70 °C | 200 A |
| Switching capacity class | C |
| Breaking capacity at 240 V | 330 kA |
| Breaking capacity at 415 V | 242 kA |
| Breaking capacity at 440 V | 242 kA |
| Breaking capacity at 500 V | 187 kA |
| Breaking capacity at 690 V | 5.2 kA |
| Power loss, max. | 46 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU310M |
| Overcurrent protection function | I |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | on both sides nut keeper kit |
| 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 |
|---|---|
| Mechanical service life (operating cycles), typ. | 25 000 |
| Height | 181 mm |
| Width | 105 mm |
| Depth | 86 mm |
| Height (in) | 7.13 in |
| Width (in) | 4.13 in |
| Depth (in) | 3.39 in |
Product details
Frequently asked questions
What is the breaking capacity of 3VA2220-7MS32-0CH0 at 240 V?
330 kA at 240 V, dropping to 242 kA at 415/440 V, 187 kA at 500 V, and 5.2 kA at 690 V.
What is the continuous current rating of this MCCB at elevated ambient temperatures?
200 A from 40 °C through 70 °C — no derating required across that range.
Where can I buy 3VA2220-7MS32-0CH0?
Sourced and quoted to order against an RFQ through independent distribution — availability and current pricing are confirmed at quote time.