The 50 A rating holds flat from 40 °C to 50 °C ambient, then derates to 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. The enclosure footprint is 101.6 mm wide by 130 mm tall by 70 mm deep, with IP40 protection on the front. That width is a standard 4-pole MCCB slot on a DIN rail or mounting plate; verify the gland plate depth if the panel is shallow.
Siemens 3VA1050-4ED42-0AH0 SENTRON MCCB, 50 A, 4-Pole, 121 k
MPN3VA1050-4ED42-0AH0
Siemens SENTRON 3VA1050-4ED42-0AH0, molded case circuit breaker, 4-pole, 50 A rated continuous current, TM210 overcurrent release, line protection, breaking capacity 121 kA at 240 V.
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 |
| Product version | Line protection |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Current at 40 °C | 50 A |
| Current at 45 °C | 50 A |
| Current at 50 °C | 50 A |
| Current at 55 °C | 48 A |
| Current at 60 °C | 47 A |
| Current at 65 °C | 46 A |
| Current at 70 °C | 45 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 | lug terminal |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | No |
| Trip indicator | Yes |
| Communication function | No |
| Measurement function | No |
| Motor drive option | No |
| 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 |
|---|---|
| Height | 130 mm |
| Width | 101.6 mm |
| Depth | 70 mm |
Product details
Frequently asked questions
What is 3VA1050-4ED42-0AH0's listed depth on this component line?
The depth is 70 mm.
What is 3VA1050-4ED42-0AH0's listed width on this component line?
The width is 101.6 mm.
What compliance documentation does this brand provide for 3VA1050-4ED42-0AH0?
Siemens SENTRON series MCCBs carry UL, CSA, and IEC certifications. RoHS and REACH declarations are available on request from the manufacturer.
MPN
3VA1050-4ED42-0AH0