At 240 V it interrupts 121 kA, at 415 V it clears 75.6 kA, at 440 V it handles 25 kA, and at 690 V it still breaks 11.9 kA — so this breaker is sized for high-fault industrial distribution where the available short-circuit current is substantial and you need to coordinate downstream feeder breakers without cascading failure. The TM240 release means it's a thermal-magnetic type, which gives you inverse-time overload protection (thermal) and instantaneous magnetic trip for short circuits. No electronic adjustment — it's a fixed-curve breaker, so if your load profile needs adjustable long-time or short-time pickup, you'd look at the electronic-trip variants in the 3VA family. This is a straightforward line-protection breaker for a main feeder or large motor branch where you need remote tripping capability and auxiliary contacts for status, but don't need the extra layers of protection or networking.
Siemens 3VA1220-4EF32-0JC0 SENTRON MCCB, 200 A, 121 kA at 24
Siemens SENTRON 3VA1220-4EF32-0JC0, molded case circuit breaker, 3-pole, 200 A, TM240 thermal-magnetic release, 121 kA at 240 V AC, shunt trip, IP40 front.
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| 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 | 25 kA |
| Breaking capacity at 690 V | 11.9 kA |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM240 |
| Parameter | Value |
|---|---|
| Main circuit connection type | lug terminal |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | Yes |
| 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 |
|---|---|
| Height | 158 mm |
| Width | 105 mm |
| Depth | 70 mm |
Product details
Frequently asked questions
What is the interrupting capacity of 3VA1220-4EF32-0JC0 at different voltages?
It interrupts 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V — high enough for most industrial main feeders and large sub-feeders.
What does the TM240 release mean on this breaker?
TM240 is a thermal-magnetic overcurrent release: thermal element for inverse-time overload protection, magnetic coil for instantaneous short-circuit trip. Fixed curve — no electronic adjustment.
Does this breaker have a shunt trip or auxiliary contacts?
Yes, it includes a shunt trip (STL) release and two auxiliary switches (HQ type) for remote tripping and status feedback. The integrated auxiliary trip order code is 3VA9688-0BL32.
Where can I buy 3VA1220-4EF32-0JC0 and how is it quoted?
This is a current-production part sourced through independent distribution. Submit an RFQ for availability and current pricing — confirmed at quote time for both single units and volume orders.