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Siemens 3VA2125-6KP42-0AA0
3VA21 4P 25A 85KA Circuit Breaker with ETU850-LSI
Product Description
The 3VA21 circuit breaker, designed for low voltage applications, incorporates an electronic trip unit for enhanced operational efficiency. This model operates within a 4-pole configuration and is rated for 25A, providing robust protection with a high breaking capacity classified as Class H. Specifically, it can handle short-circuit conditions with an Icu of 85kA at 415V and 2.5kA at 690V.
Equipped with the ETU850 trip unit, this circuit breaker features an LCD display for metering, allowing for precise monitoring of electrical parameters. The device supports connection through a lug terminal and includes a nut keeper for secure installation. Its dimensions measure 5.5 inches in width, 7.1 inches in height, and 4.2 inches in depth, making it suitable for various installation environments.
Additional features include adjustable overload protection settings ranging from 10A to 25A, while the short-circuit protection can be configured between 0.6 to 10 times the rated current. Furthermore, the circuit breaker offers N conductor protection, adjustable up to 160%, ensuring reliable operation in demanding conditions.
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Offer details
- Offer from:
Trusted supplier — Romania, member since 2023, 1–4 employees
- Availability:
- On requestLead time: 21 days
- Warranty:
- Not specified
- Condition:
- New Surplus
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
- 25 A
Available Offers
(3)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
![]() | Condition New Surplus | Availability On requestLead time: 21 days | Supplier | Warranty Not specified | |
| 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 3VA2125-6KP42-0AA0, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 22-08-2026

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