Siemens HFXD63B250 - 250 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens HFXD63B250 is a robust 3-pole bolt-on molded case circuit breaker designed to protect your most critical electrical branches. Rated for 250 A at up to 600 V, it’s built to handle demanding commercial and light industrial loads while delivering dependable, repeatable protection in panelboards and load centers.

Overview

Engineered by Siemens, the HFXD63B250 combines a secure bolt-on mounting with a thermal-magnetic trip mechanism. This combination provides precise coordination between overcurrent and short-circuit protection, reducing nuisance trips in varying temperatures and vibration-prone environments.

Key Features

• Bolt-on mounting ensures a rigid, vibration-resistant bus connection for long-term reliability in demanding installations.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding proportionally to overloads and quickly interrupting short circuits.
• OEM-loadcenter compatibility supports straightforward substitutions in matching Siemens panelboards and load centers.
• Versatile application suitable for residential, commercial, and light industrial environments needing dependable branch-circuit protection.

Technical Specifications

• Manufacturer: Siemens
• Part Number: HFXD63B250
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 250 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal Use Scenarios

• Commercial panelboards and distribution boards that require high-current, three-phase protection.
• Light industrial service entrances where stable, long-term performance is critical in environments with vibration or movement.
• Replacement or upgrade applications in Siemens-based installations needing seamless OEM compatibility.

Why This Model Stands Out

Unlike generic breakers, the HFXD63B250 is purpose-built to integrate with Siemens load centers, delivering a cohesive, engineered protection solution. The bolt-on design minimizes connection looseness and vibration-related issues, while the thermal-magnetic trip unit ensures protective action aligns with real operating conditions—helping you avoid unnecessary outages and extend panel longevity.

Installation & Compatibility

Designed for use in compatible Siemens panelboards and load centers, the HFXD63B250 should be installed by professionals who verify the system voltage, current rating, and circuitry match. Ensure proper alignment with bus connections and secure mounting, then test the circuit to confirm the protective function performs as intended after installation.

For projects managed by AmpState, the Siemens HFXD63B250 offers a reliable, high-current protection solution that stands up to the realities of commercial and light industrial electrical systems. Add it to your service lineup for dependable branch-circuit protection that installers and facilities teams can trust.