Siemens B380HH - 80 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens B380HH 80A, 240V, 3-pole bolt-on molded case circuit breaker delivers dependable branch-circuit protection for panelboards and load centers. Built for reliable performance in residential, commercial, and light industrial installations, this device combines secure mounting with precise protection, so you can trust it to guard critical electrical circuits day after day.

Why choose the Siemens B380HH

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing the risk of loosening and ensuring consistent electrical contact in challenging panel environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance against both overloads and short circuits, helping prevent nuisance trips and equipment damage.
• 3-pole, 240V design is ideal for 3-phase circuits and equipment requiring simultaneous protection across three conductors.
• 80A amperage rating suits medium-load feeders, commercial lighting circuits, and equipment feeds without oversizing or wasting capacity.
• OEM-compatible works with matching Siemens load centers and panelboards, ensuring seamless integration in existing installations.
• Versatile applications suited for residential, commercial, and light industrial settings where reliable branch-circuit protection and quick isolation are essential.

Key specifications

• Manufacturer: Siemens
• Part Number: B380HH
• Type: Thermal-magnetic molded case circuit breaker
• Ampere rating: 80A
• Voltage rating: 240V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Use the Siemens B380HH to protect feeder circuits and individual branches within Siemens-based panelboards and load centers. It’s well-suited for shared commercial spaces, lighting and receptacle feeders in small to mid-size facilities, HVAC and pump circuits, and other equipment that benefits from robust protection and reliable trip performance. If you’re upgrading an existing Siemens installation or specifying a replacement in a Siemens panel, the B380HH provides a precise fit with predictable protection characteristics.

Installation and compatibility notes

Designed for bolt-on mounting, this 3-pole breaker ensures a secure connection to the panel’s bus system, helping minimize vibration-induced contact issues. Its 240V rating aligns with standard three-phase and single-phase systems in common commercial and light industrial setups. Verify compatibility with your OEM Siemens load center or panelboard when planning replacement or upgrade projects to maintain electrical integrity and warranty coverage.

For reliable, durable protection in demanding environments, the Siemens B380HH 80A, 240V, 3-pole bolt-on molded case circuit breaker stands out with its rigid mounting, stable trip performance, and seamless compatibility with Siemens panels—delivering peace of mind for ongoing electrical safety and system availability.