MCCBs

Heavy-duty protection devices for higher current applications, offering adjustable trip settings and high breaking capacities for robust circuit safety.

Siemens | 3VA Molded Case Circuit Breakers

The Siemens 3VA series is a sophisticated, global system designed to meet both IEC and UL standards. It is highly valued in procurement for its “Integrated System” approach, where all frame sizes share a common platform of internal accessories, significantly simplifying the sourcing of spare parts.

3VA1 (Standard)

Model Number: 3VA1110-4ED36-0AA0

Thermal-magnetic trip units (TMTU); compact 1-pole to 4-pole versions; ideal for AC/DC line protection.

Key Technical Specifications:

  • Optimized for distribution boards with a cap dimension of only 45mm, allowing for 48% more space compared to legacy models.

  • Fully rated for both AC and DC applications, making it a “one-stop” component for diverse industrial power requirements.

  • Every unit features a “Knowledge Manager” QR code that provides instant on-site access to technical data and certificates.

3VA2 (Advanced)

Model Number: 3VA2580-5MQ32-0AA0

Electronic trip units (ETU); high breaking capacity (up to 150kA); integrated metering and communication.

Key Technical Specifications:

  • Engineered for superior selective protection, ensuring only the breaker closest to the fault trips, keeping the rest of the plant powered.

  • The ETU 8-series trip unit acts as a built-in power meter, transmitting current, voltage, and energy data without extra hardware.

  • Supports easy integration into automation systems via Modbus, PROFIBUS, and PROFINET expansion modules.

Schneider Electric | ComPacT NSX & NSXm

The ComPacT NSX range is the industry’s most recognizable MCCB series. Schneider’s “New Generation” focuses on “Smart Panels”—these breakers are sourced when a facility wants “Plug-and-Play” connectivity and patented connection technologies that prevent common wiring failures.

ComPacT NSXm

Model Number: C11B3TM063B

Smallest frame in the range; built-in DIN rail mount; EverLink™ power terminals.

Key Technical Specifications:

  • Features patented creep-compensating technology that maintains constant pressure on bare cables, preventing loose connections due to heat cycling.

  • Field-installable accessories “click” into place without tools and are visible through a front-facing window for quick status checks.

  • Available with built-in MicroLogic Vigi protection, saving significant rail space compared to separate add-on modules.

ComPacT NSX

Model Number: C10N3TM100

Roto-active™ breaking technology; MicroLogic™ trip units; wireless cloud connectivity.

Key Technical Specifications:

  • Unique contact design reduces the risk of short-circuit damage by a factor of eight, significantly extending the life of the installation.

  • High-accuracy digital sensors (Rogowski coils) provide precise protection settings and power monitoring up to 105°C.

  • Optional wireless auxiliary contacts send status alerts (tripped/open/closed) directly to a cloud-based maintenance dashboard.

Sourcing for MCCBs?

Our solutions empower you to optimize efficiency and bolster reliability.

Get in Touch