Siemens HHED63B045L - 45 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens HHED63B045L is a 45A, 600V, 3-pole bolt-on molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for real-world electrical environments, this unit combines secure mounting with precise trip performance to keep systems safe and downtime minimal.

Why choose the HHED63B045L

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain solid electrical contact even in environments with movement or machinery nearby.
• Thermal-magnetic trip unit offers stable, repeatable protection performance—fast magnetic response to short circuits complemented by thermal protection for sensible, nuisance-free operation under normal loads.
• 3-pole design supports multi-line protection in panelboards and load centers, enabling coordinated, reliable performance across all phases.
• OEM-ready compatibility is designed to work with matching Siemens OEM load centers and panelboards, simplifying replacement and maintenance projects.
• Versatile for multiple sectors suited for residential, commercial, and light industrial electrical environments, making it a practical choice for a wide range of installations.

Technical snapshot

• Manufacturer: Siemens
• Part Number: HHED63B045L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 45A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Install the HHED63B045L in panelboards and load centers where reliable protection is essential for multi-line circuits. It’s a solid choice for upgrading or replacing aging protection devices in both new builds and retrofit projects, ensuring consistent performance across residential, commercial, and light industrial applications.

Practical guidance for installation and use

• Ensure compatibility with your OEM load center or panelboard to maintain optimal fit and protection coordination.
• Plan for three-pole coverage in multi-phase systems to maintain balanced protection across all conductors.
• Adhere to local electrical codes and safety practices during installation, including de-energizing equipment and following lockout/tagout procedures.