Its interrupting capacity hits 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — so it handles high-fault scenarios on the secondary side of a distribution transformer without cascading upstream. The 20 A rating holds flat from 40 °C to 50 °C, then derates linearly to 18 A at 70 °C. Plan the load accordingly. Four HQ auxiliary switches come built in (auxiliary contact version: 4 auxiliary switches HQ). The TM210 release has a fixed time delay tr max of 1 s.
Siemens 3VA1020-4ED36-0AE0 SENTRON MCCB, 20 A, 121 kA at 240
MPN3VA1020-4ED36-0AE0
Siemens SENTRON 3VA1020-4ED36-0AE0, 3-pole molded case circuit breaker, line protection, rated 20 A continuous, 121 kA interrupting at 240 V, TM210 thermal-magnetic release, 4 HQ auxiliary switches, IP40 front.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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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 |
| Product version | Line protection |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Current at 40 °C | 20 A |
| Current at 45 °C | 20 A |
| Current at 50 °C | 20 A |
| Current at 55 °C | 19.2 A |
| Current at 60 °C | 18.8 A |
| Current at 65 °C | 18.4 A |
| Current at 70 °C | 18 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 690 V | 11.9 kA |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM210 |
| Parameter | Value |
|---|---|
| Main circuit connection type | box terminal |
| 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 | No |
| Auxiliary CO contacts | 4 |
| 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 | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
Product details
MPN
3VA1020-4ED36-0AE0