The Siemens 3VA1220-5GF42-0AC0 is a SENTRON molded case circuit breaker (MCCB) rated for continuous current of 200 A across ambient temperatures from 40 °C to 50 °C, derating to 176 A at 70 °C. Interrupting capacity is 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V — these are the fault currents the breaker can safely clear at each voltage level without welding or rupturing. The 4-pole construction (3 phases + neutral) suits three-phase systems where the neutral needs overcurrent protection. Maximum power loss is 42 W at rated current, relevant for enclosure thermal calculations.
Siemens 3VA1220-5GF42-0AC0 SENTRON MCCB, 200 A, 4-Pole, 187
MPN3VA1220-5GF42-0AC0
Siemens SENTRON 3VA1220-5GF42-0AC0, molded case circuit breaker (MCCB), 200 A, 4-pole, TM240 thermal-magnetic release, interrupting capacity 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
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. | 3VA12205GF420AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| 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 | 194 A |
| Current at 60 °C | 188 A |
| Current at 65 °C | 182 A |
| Current at 70 °C | 176 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 | 30 kA |
| Breaking capacity at 690 V | 17 kA |
| Power loss, max. | 42 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 | 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 |
|---|---|
| Mechanical service life (operating cycles), typ. | 20 000 |
| Height | 158 mm |
| Width | 140 mm |
| Depth | 70 mm |
| Height (in) | 6.22 in |
| Width (in) | 5.51 in |
| Depth (in) | 2.76 in |
Product details
Frequently asked questions
Does 3VA1220-5GF42-0AC0 include an undervoltage release?
No, this breaker does not include an undervoltage release. It also has no voltage trigger, ground-fault monitoring, or communication function — it is a basic line-protection MCCB with a TM240 thermal-magnetic release and 2 auxiliary switches.
MPN
3VA1220-5GF42-0AC0