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Siemens 3VA1120-4EF42-0AA0
3VA11 4P 20A 36KA ATAM NUT Circuit Breaker
Product Description
The 3VA11 4P Circuit Breaker integrates a thermal-magnetic trip unit, designed to meet IEC standards. This model operates at a rated voltage of 690V and provides a breaking capacity of 36kA at 415V. With a rated permanent current of 20A, it includes an adjustable overload release current setting ranging from 14A to 20A and a short-circuit protection setting between 8 to 16 times the nominal current.
Featuring a built-in design and a connection with lug terminal and nut keeper, the device is specifically constructed for fixed installation. The breaker is IP40 rated, providing adequate protection against dust ingress. It supports a front-side connection for the main current circuit and employs a rocker lever as the control element.
This configuration ensures reliable performance in various applications, making it a suitable choice for industrial environments requiring effective overload and short-circuit protection. Notably, the device does not come with integrated earth fault protection or under voltage release.
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Offer details
- Offer from:
Trusted supplier — Germany, member since 2024
- Availability:
- On requestLead time: 5 days
- Warranty:
- Not specified
- Condition:
- New Factory Sealed
Specifications
- Brand
- Siemens
- Number of poles
- 4
- Rated voltage
- 690 V
- Motor drive optional
- Motor drive integrated
- Degree of protection (IP)
- IP40
- Rated permanent current Iu
- 20 A
Available Offers
(2)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
| Condition New Factory Sealed | Availability On requestLead time: 5 days | Supplier | Warranty Not specified | ||
![]() | Condition New Factory Sealed | Availability On requestLead time to be confirmed | Supplier | Warranty 12 months |
Offer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Siemens 3VA1120-4EF42-0AA0, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 16-09-2026

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