The interrupting capacity hits 121 kA at 240 V and still delivers 75.6 kA at 415 V — enough to handle high-fault utility feeds without cascading upstream. At 690 V it still breaks 11.9 kA, so it holds up on 480Y/277 V or 600 V industrial services. Thermal derating starts at 55 °C: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, 176 A at 70 °C. This is a line-protection breaker — no ground-fault module, no communication function. The auxiliary release is factory-fitted, so you don't need to open the cover to add one in the field. Dimensions: 140 mm wide, 158 mm tall, 70 mm deep. Four-pole frame takes up about 5.5 inches of DIN-rail width — plan the gland plate and wireway fill before you lay out the panel.
Siemens 3VA1220-4GF42-0JH0 SENTRON MCCB, 200 A, 4-Pole, 121
MPN3VA1220-4GF42-0JH0
Siemens SENTRON 3VA1220-4GF42-0JH0, molded case circuit breaker, 200 A, 4-pole, 121 kA interrupting at 240 V, line protection design, shunt trip (STL), 2 aux + 1 trip alarm switch.
Source DocumentedChannel stated on listing & quote
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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. | 3VA12204GF420AA0 |
| 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. | 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 | Yes |
| 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
What is the interrupting capacity of 3VA1220-4GF42-0JH0 at different voltages?
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. These ratings cover most industrial distribution voltages from 208Y/120 V through 600 V.
What is the thermal derating curve for this 200 A MCCB?
Full 200 A up to 50 °C. At 55 °C it derates to 194 A, at 60 °C to 188 A, at 65 °C to 182 A, and at 70 °C to 176 A. If your panel ambient runs above 50 °C, size the load side for the derated value.
Where can I buy 3VA1220-4GF42-0JH0 and how is it quoted?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here.
What auxiliary switches and releases come with this breaker?
It includes two auxiliary switches plus one trip alarm switch (HQ), and a factory-fitted shunt trip (STL) for remote opening. No undervoltage release is installed.
MPN
3VA1220-4GF42-0JH0