The 3VA4120-6ED14-0AA0: At 25.4 mm wide (1 inch) and 75.1 mm deep, this breaker occupies a single-pole slot in a SENTRON panelboard or similar DIN-rail assembly, provided the bus or line-side lugs match the 415 V AC rated voltage. The IP40 front protection means it resists tool entry from the front but is not sealed against washdown — fit it in a dry enclosure or behind a gland plate.
Siemens SENTRON 3VA4120-6ED14-0AA0 MCCB, 1-Pole, 20 A, TM210
MPN3VA4120-6ED14-0AA0
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Siemens SENTRON 3VA4120-6ED14-0AA0, 1-pole molded-case circuit breaker, system protection design, TM210 thermal-magnetic release, rated 20 A at 40 °C, interrupting capacity 150 kA at 120 V AC, 75.1 mm depth, IP40 front protection.
$64.77Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded-case circuit breaker |
| Brand / range | SENTRON |
| Parameter | Value |
|---|---|
| Number of poles | 1 |
| Rated operational voltage Ue (AC) | 415 V |
| Current at 40 °C | 20 A |
| Current at 45 °C | 20 A |
| Current at 50 °C | 19 A |
| Current at 55 °C | 19 A |
| Current at 60 °C | 18 A |
| Current at 65 °C | 18 A |
| Current at 70 °C | 17 A |
| Switching capacity class | H |
| Power loss, max. | 2.8 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM210 |
| Overcurrent protection function | LI |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | Infeed side: Low tab |
| 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 | No |
| Auxiliary CO contacts | 0 |
| 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. | 15 000 |
| Height | 129.4 mm |
| Width | 25.4 mm |
| Depth | 75.1 mm |
| Height (in) | 5.09 in |
| Width (in) | 1 in |
| Depth (in) | 2.96 in |
Product details
Frequently asked questions
What is the interrupting capacity of 3VA4120-6ED14-0AA0 at 120 V?
It is rated 150 kA at 120 V AC, which is very high for a 1-pole breaker — sufficient to clear faults in high-capacity transformer-fed panels without cascading.
What is the continuous current rating of this MCCB at elevated temperatures?
At 40 °C it carries 20 A. Derating is linear: 19 A at 50 °C, 18 A at 60 °C, and 17 A at 70 °C. The thermal-magnetic TM210 release governs the trip curve.
Where can I buy 3VA4120-6ED14-0AA0?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time; no stock count or lead-time figure is published here.
MPN
3VA4120-6ED14-0AA0