Tools

Power Distribution USAPower Distribution USA

3VA Molded Case Circuit Breaker



A System Designed With You In Mind

Set high standards when designing, planning, installing and operating power distribution systems. Rely on a well designed system: the 3VA molded case circuit breaker (MCCB).

As part of our Totally Integrated Power offering, the 3VA MCCB can be easily adapted to your individual needs and provides support during every phase of your project. 3VA is optimized in terms of selectivity and high-breaking capacities, internal metering and communication capabilities. With comprehensive accessories, it can meet your stringent requirements.



https://mall.industry.siemens.com/mall/en/de/Catalog/Products/9990301?tree=CatalogTree
https://mall.industry.siemens.com/mall/en/de/Catalog/Products/9990301?tree=CatalogTree

https://mall.industry.siemens.com/mall/en/de/Catalog/Products/9990301?tree=CatalogTree
https://mall.industry.siemens.com/mall/en/de/Catalog/Products/9990301?tree=CatalogTree



Flexible
Whether in industrial applications, infrastructure or buildings - our new 3VA molded case circuit breaker offers safe, flexible and efficient application options for low-voltage power distribution. Including a complete portfolio, with a range of frame sizes covering 100A to 630A with our 3VA1 and 3VA2.

Reliable
Every plant depends on the reliable supply of electricity. Our products provide a safe, reliable and efficient electrical infrastructure at the medium and low-voltage levels.

Safe
Our components mitigate the risk of accidents, faults and fires caused by electrical installations and allow consumers to utilize electrical power in a sustainable, responsible manner.


Efficient
The entire electronic support offered by Siemens is merged under Planning Efficiency. At each phase of the project, online functions make the everyday work of the planners easier and more efficient.

Comprehensive
With a wide range of internal accessories, which can fit in any of the 3VA products, a variety of system configurations are possible. They can be adapted flexibly, quickly and easily to individual specifications. Color coded for simple installation process, they are designed to always be installed at the correct position in the circuit breaker. Additionally, a wide variety of external accessories meets your needs for global applications.


Communications
The communication-capable 3VA molded case circuit breakers can be connected to higher-level management systems by means of various bus systems.

Data Collection
The Electronic Trip Unit (ETU) of the 8-series can measure voltage, power and energy and forward the values by means of communication modules according to requirements.

Support
The Technical Support for low-voltage power distribution and electrical installation technology assists you with all your technical queries about our products and systems – both before and after delivery.





MLFB Structure



The 3VA family of MCCBs

  • 3VA5 – TMTU MCCBs – Cable-In, Cable-Out w/ Global (UL, IEC, CSA etc.) ratings now available in the USA up to 250A!

  • 3VA6 – ETU MCCBs – Cable-In, Cable-Out w/ Global (UL, IEC, CSA etc.) ratings now available in the USA up to 600A!

US / North-American Availability Guide*:

Line

125A

150A

250A

400A

600A

800A

> 800A

3VA5

TMTU

Available

N/A

Available

TBA

TBA

TBA

TBA

3VA6

ETU

Available

Available

Available

Available

Available

TBA

TBA

* Availability in apparatus to follow approximately 6 months or more after breaker availability. Please inquire w/ Siemens LP Systems Product Management.








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