The Siemens 3VA Molded Case Circuit Breaker (MCCB) series delivers comprehensive protection, high performance, and scalable flexibility for low-voltage power distribution systems. Engineered to meet demanding industrial and commercial requirements, 3VA breakers offer a wide range of frame sizes, trip units, and mounting options. With advanced features like communication capability, system diagnostics, and modular accessories, these breakers ensure reliable operation, simplify maintenance, and support future-ready system designs. Available through Steiner Electric, Siemens 3VA MCCBs provide the protection and configurability today’s facilities demand.
Key Features:
- Scalable platform: Broad device range enables nearly limitless function expansion
- Global compliance: Meets UL 489 and IEC 60947 standards for international applications
- Compact footprint: Space-saving design for efficient panel layouts
- Flexible integration: Wide selection of internal accessories including auxiliary contacts, alarm switches, and shunt trips
EXPANDABLE System Offers Enhanced Opportunities for Safety-conscious Environments
Steiner Electric offers nine versions of the Siemens 3VA5 molded case circuit breaker. The breakers come in sizes ranging from 125 A with a switching capacity up to 65 kA and the other with 250 A and a switching capacity of 100 kA at 480 V. An extensive range of internal accessories is available for the 3VA UL molded case circuit breakers, and many different functions are possible with the numerous auxiliary switches and alarm switches.
As functions grow and expand, one thing remains the same. The Siemens 3VA circuit breaker protects cables and electrical loads from damage and failures that can be caused by disruptions such as short circuits or overloads.
Manual Operator Options
Manual operators facilitate manual operation of the 3VA UL molded case circuit breakers, either directly at the circuit breaker or through the cubicle door.
Connection Technology
Helping tie the technology are a variety of wire connectors earmarked for the various models of 3VA circuit breakers.
Auxiliary Switches
All auxiliary and alarm switches for the 3VA UL molded case circuit breakers belong to an integrated range of accessories.
The auxiliary switches can be simply snapped into place and connected up in the accessories compartment provided on the front face of the unit to the left and right of the handle. Shunt trips are available on certain models.