Siemens HED43B035 - 35 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens HED43B035 is a 35A, 480V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable protection for branch circuits in panelboards and load centers. Built for durability in demanding environments, this unit helps keep electrical systems safe from overcurrent and short-circuit events.

• Bolt-on mounting provides a secure, rigid connection to the bus and resists vibration, reducing the risk of loose connections in panels subjected to mechanical movement.
• Thermal-magnetic trip unit offers stable, repeatable protection performance by responding quickly to short circuits (magnetic trip) and gradual overcurrents (thermal trip) to minimize nuisance trips and protect wiring.
• OEM-compatible design ensures seamless integration with matching Siemens OEM load centers and panelboards, simplifying replacement and service planning.
• Versatile across sectors suitable for residential, commercial, and light industrial applications where reliable 3-phase protection at 480V is required.
• Three-pole configuration is ideal for 3-phase 480V distribution, protecting all conductors in a three-wire system and maintaining balanced, safe operation.

Ideal use cases include upgrading or expanding commercial electrical panels, retrofitting light industrial distributions, or implementing robust protection in new 480V three-phase installations. The HED43B035 is purpose-built to safeguard downstream equipment, minimize downtime, and extend the life of electrical infrastructure by preventing the adverse effects of overcurrent and short circuits.

Technical snapshot

• Manufacturer: Siemens
• Part Number: HED43B035
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 35A
• Voltage Rating: 480V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Choosing the Siemens HED43B035 means prioritizing reliability, ease of installation, and compatibility with your existing Siemens panel ecosystem. It’s the practical, long-term solution for protecting 3‑phase 480V circuits in a range of commercial and industrial settings.