The 3VA1220-4EF42-0CH0: Rated current holds at 200 A from 40 °C through 50 °C, then derates linearly to 176 A at 70 °C. That thermal curve means the breaker can be loaded to nameplate in most ventilated enclosures; only tight-gland or high-ambient panels need the derated figure. Breaking capacity steps down with system voltage: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V. For a 480 V panel (common in North American industrial) the 52.5 kA at 440 V is the closest published figure — still well above typical 25–35 kA available fault currents. No ground-fault monitoring or communication module on this build.
Siemens 3VA1220-4EF42-0CH0 SENTRON MCCB, 200 A, 4-Pole, 70 m
MPN3VA1220-4EF42-0CH0
Siemens SENTRON 3VA1220-4EF42-0CH0, molded case circuit breaker, 4-pole, 200 A rated current, 121 kA breaking capacity at 240 V, line protection design with undervoltage release.
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. | 3VA12204EF420AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| 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 | 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 500 V | 17 kA |
| Breaking capacity at 690 V | 11.9 kA |
| Power loss, max. | 44.5 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 | 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. | 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
Where can I buy 3VA1220-4EF42-0CH0?
Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.
What is the breaking capacity of 3VA1220-4EF42-0CH0?
121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V.
Does 3VA1220-4EF42-0CH0 include an undervoltage release?
Yes, it includes an undervoltage release (UVR) plus 2 auxiliary switches and 1 trip alarm switch (HQ type).
MPN
3VA1220-4EF42-0CH0