Siemens 3VA93730JB13 Circuit Breaker, 400A, 3-Pole

Siemens 3VA93730JB13 Circuit Breaker is a rugged, industrial-grade 3-pole device rated for 400 A, designed to protect and control high-current three-phase circuits in demanding environments. This breaker is an ideal fit for industrial electrical service, maintenance, and replacement projects where reliable overcurrent protection is essential.

Key reasons to choose the 3VA93730JB13 for your installation:

• 3-pole, three-phase protection: Keeps all phases in sync, reducing the risk of uneven current flow and protecting equipment from phase imbalances in motor-driven systems, conveyors, and presses.
• High-current capability: 400 A rating handles demanding loads commonly found in manufacturing floors and heavy machinery setups.
• Direct compatibility reference: Use part number 3VA93730JB13 to confirm fit with your Siemens panel and application requirements.
• Industrial reliability from Siemens: Leverages Siemens engineering and compatibility with other protection devices in your system for streamlined maintenance and service life.

Usage scenarios

• New installations in manufacturing lines or processing equipment that require robust three-phase protection.
• Maintenance or replacement of aging panels where a 3-pole, 400 A circuit breaker is specified.
• Upgrading service equipment to ensure consistent protection across high-current motors and drives.

How this part fits into your project

The 3VA93730JB13 is positioned for industrial service and replacement needs where reliable interruption protection is non-negotiable. It’s particularly well-suited for applications with three-phase motors, heavy-duty conveyors, and automated equipment that demand consistent performance under load.

Tips for a smooth fit and installation

• Verify compatibility: Confirm the part number and review your panel’s labeling and application requirements before ordering.
• Consult a qualified technician: Ensure correct mounting orientation, trip characteristics, and wiring configurations for your specific system.
• Need assistance? If you’re unsure about compatibility or fit, message us and we’ll help verify with your panel and application details.

Ready to safeguard your three-phase equipment with a trusted Siemens circuit breaker? The 3VA93730JB13 offers dependable protection for industrial electrical service, backed by Siemens’ engineering lineage and a clear path to compatibility with your existing protection strategy.