Siemens B28000S01 - 80 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Siemens B28000S01 is an 80A, 240V, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Built for durability and repeatable protection, this unit integrates seamlessly with Siemens OEM panels, making upgrades or replacements straightforward for installers and property owners alike. Available through AmpState.

• Bolt-on mounting ensures a rigid, vibration-resistant bus connection, reducing movement that can wear contacts over time.
• Thermal-magnetic trip unit provides stable protection by combining precise thermal sensing with magnetic instantaneous trip for fast fault clearing.
• Two-pole design interrupts both hot legs at once, preserving system balance and simplifying wiring in configurations requiring shared neutrals.
• OEM-compatible compatibility with matching Siemens load centers and panelboards simplifies retrofits and new installations, ensuring electrical characteristics align with your panel’s design.
• Versatile across environments ideal for residential, commercial, and light industrial applications where reliable protection and quick fault response matter.

Specifications at a glance

• Part Number: B28000S01
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 80A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical benefits and use cases

When upgrading or maintaining panelboards and load centers, the Siemens B28000S01 provides predictable trip behavior across temperature variations, reducing nuisance trips and protecting wiring, devices, and downstream equipment. It’s especially well-suited for service panels and distribution boards in homes, small offices, retail spaces, and light manufacturing where an 80A feeder or branch circuit is required.

Tips for installation and long-term reliability

• Confirm you’re pairing this breaker with compatible Siemens OEM load centers or panelboards to ensure correct trip curves and physical fit.
• Follow all local electrical codes and the panel manufacturer’s installation instructions when mounting and wiring.
• Maintain labeling accuracy: record the part number (B28000S01) and amperage (80A) on the panel schedule for future maintenance.