Siemens | HP3B140 | Circuit Breaker | 3-Pole | 480V

Meet the Siemens HP3B140 circuit breaker—a 3-Pole, 480V device designed for maintenance, retrofit, and replacement projects where exact compatibility matters. This HP3B140 part is built to integrate with Siemens systems, delivering reliable three-phase protection in a compact, OEM-consistent form factor.

Key specifications

• Poles: 3-Pole
• Voltage rating: 480V AC
• Part number: HP3B140 (best reference for compatibility)
• Intended use: maintenance, retrofit, and replacement in Siemens-compatible panels

What makes the HP3B140 stand out

• Three-phase protection tailored for modern industrial layouts, reducing wiring complexity and ensuring synchronized tripping across all phases.
• OEM-grade compatibility within the Siemens HP3B family, helping you avoid mismatches during retrofit or panel upgrades.
• Clear compatibility reference: using the HP3B140 part number is the most reliable way to verify fit with your specific panel model and busbar arrangement.

Ideal use cases

• Retrofit projects where existing equipment requires a precise Siemens-compatible 3-pole, 480V solution.
• Replacement in industrial control panels that rely on the HP3B family for dependable protection.
• Maintenance upgrades in manufacturing lines, data centers, or facility electrical rooms that demand consistent, three-phase interruption protection.

Compatibility and ordering guidance

Important: Confirm fit and ratings before ordering. The HP3B140 part number is the best reference for compatibility, ensuring the breaker matches your panel’s geometry, mounting, and electrical specifications.

Practical tips for use

• Cross-check the panel model and existing HP3B components to confirm seamless integration.
• Keep the HP3B140 within standard Siemens instrument enclosures to maintain protection integrity and safe operation.
• If you’re upgrading from another series, map the trip characteristics and mounting orientations to ensure a clean replacement process.