High standards in designing, planning, installing and operating power distribution systems
Easily adapts to your individual needs
Optimized selectivity and high-breaking capacities, internal metering and communication capabilities to meet your stringent requirements
Click Literature & Videos tab to watch 3VA UL assembly overview!
Requirements are increasing for cost-effective and energy-efficient operation of the electrical power distribution. Whether in industrial applications or buildings, our new 3VA molded case circuit breaker offers safe, efficient and variable application options for low-voltage and medium-voltage power distribution. The 3VA range of molded case circuit breakers provides UL frame sizes covering 125A to 600A with the 3VA5 and 3VA6 models, as well as IEC frame sizes covering 100A to 630A with the 3VA1 and 3VA2 models.
> 800 A
* Availability in apparatus to follow approximately six months or more after breaker availability. Please inquire with Siemens LP Systems Product Management.
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!
3VA molded case circuit breaker
Number of poles
Short circuit rating at 480VAC (kA)
25, 35, 65 (3VA51)
35, 65, 100, 150 (3VA61, 62, 63, 64)
35, 65, 100 (3VA52)
Maximum voltage rating
600Y347 (3VA51), 600V (3VA52)
600Y347 (3VA62), 600V (3VA61, 63, 64)
From industrial applications to infrastructure, 3VA molded case circuit breakers are an integral part of cost-effective power distribution. The 3VA5 MCCB is ideal for all your standard applications, while the 3VA6 MCCB will be optimal for all advanced, demanding conditions.
Production and process automation
Waste water treatment facilities
LV Explorer - Discover Low Voltage in 3D. Get comprehensive and specific information about our products with the help of 3D animations, trailers, and technical information.
Easily configure your 3VA UL product in our Industry Mall Configurator.
Always at your convenience: our extensive support. We provide you with support from planning through commissioning and operation.
*First-time users need to register in order to create a Service request and select the 3VA MCCB product for the dedicated support from our Technical Support team.
Siemens Digital Evolution
3VA 125A Circuit Breaker Assembly
3VA 250A Circuit Breaker Assembly
Collateral is now stored in one centralized application. This application allows you to search for literature by keywords or product categories. A link to the download center can be found on each page under the header image. Look for the link called 'Downloads.'