Siemens B3100H - 100 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens B3100H is a dependable choice for protecting branch circuits in panelboards and load centers. With a 100A, 240V, 3-pole configuration and bolt-on design, this molded case circuit breaker is built to perform where reliability matters most.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing the risk of loose contacts in busy electrical environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection, automatically responding to both sustained overloads and short circuits to minimize nuisance trips.
• 3-pole configuration ensures simultaneous disconnection of all phases, essential for balanced 3-phase systems and enhanced safety.
• 100A, 240V rating aligns with common branch-circuit protection needs in residential, commercial, and light industrial settings.
• OEM-compatible designed to work with matching Siemens OEM load centers and panelboards for seamless integration.

Why choose the Siemens B3100H? If you’re outfitting a panelboard or load center that requires robust, clear-cut overcurrent and short-circuit protection, the B3100H delivers predictable performance under real-world conditions. Its bolt-on mount locks the breaker in place, promoting longevity in environments with vibration or movement, while its thermal-magnetic trip unit reacts quickly to faults, helping protect wiring and connected equipment.

Ideal use cases include residential subpanels, small-to-medium commercial panels, and light industrial electrical rooms where a reliable, 3-pole, 100A breaker is needed to guard multi-wire and 3-phase circuits. Use it in applications demanding strong protection for branch circuits, ensuring safe shutdown across all phases when faults occur.

Technical snapshot

• Manufacturer: Siemens
• Part Number: B3100H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

For projects requiring reliable protection with straightforward installation, the Siemens B3100H 100A 240V 3-pole bolt-on breaker stands out as a precise, purpose-built solution designed to integrate smoothly with Siemens load centers and panelboards.