Siemens HED43B080 - 80 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet Siemens HED43B080 — a robust 80 A, 480 V, 3-pole bolt-on molded case circuit breaker designed to safeguard branch circuits in panelboards and loadcenters. Built for dependable overcurrent and short-circuit protection, this device helps keep critical electrical systems running smoothly in demanding environments.

• Secure bolt-on mounting provides a rigid, vibration-resistant connection to the bus, minimizing movement that can lead to loose contacts over time.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding precisely to overloads and short circuits, with trip curves that hold steady across ambient temperature changes.
• OEM-compatible design is engineered to pair with matching Siemens loadcenters and panelboards, ensuring straightforward installation and consistent performance.
• Versatile application suitable for residential, commercial, and light industrial installations where 480 V three-phase protection is required.

Technical specifications

• Manufacturer: Siemens
• Part Number: HED43B080
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage rating: 80 A
• Voltage rating: 480 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

• Upgrading a panelboard in commercial spaces that operate on 480 V three-phase systems.
• Replacing aging breakers in industrial or light-industrial facilities where vibration resistance and secure mounting matter.
• Integrating into new installations that require a reliable, Siemens-branded MCCB with 3-pole bolt-on mounting.

Why this Siemens HED43B080 matters: the combination of bolt-on reliability and a thermal-magnetic trip unit translates into fewer nuisance trips and more predictable protection for valuable equipment. When you need a precise, durable solution for 80 A circuits at 480 V, this MCCB delivers the performance you expect from Siemens, aligned with OEM-compatible panelboards and loadcenters for a seamless fit and long service life.