Siemens B2100 - 100 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Engineered for reliability in demanding electrical environments, the Siemens B2100 is a 100A, 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. This MCCB combines rugged, field-ready mounting with precise protection, making it a smart choice for residential, commercial, and light industrial applications.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays tight even in busy panels and busy service environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, helping prevent nuisance trips while reliably interrupting faults when they occur.
• OEM-ready compatibility is designed to partner with matching Siemens OEM load centers and panelboards for a cohesive, code-compliant protection system.
• Versatile 2-pole, 100A, 240V design suits a wide range of circuits and equipment, from residential feeders to commercial branch circuits and light industrial loads.
• Specifically suited for branch circuit protection against overcurrent and short circuits, protecting wiring, devices, and downstream equipment in a single, integrated solution.

Why choose the Siemens B2100

When your installation demands a robust, easy-to-maintain protective device, the B2100 stands out with its bolt-on architecture and dependable thermal-magnetic trip behavior. This means faster field service with secure mounting, fewer retightenings, and predictable protection aligned with standard panelboard designs. It’s a purpose-built solution for installers and facility managers who value reliability and compatibility in one complete package.

Ideal use cases

• Main service panels and subpanels in residential, commercial, and light industrial settings
• Feeder circuits where a secure, vibration-resistant connection is critical
• Replacement or upgrade in panelboards that require a matching OEM thermal-magnetic MCCB
• Situations demanding clear, consistent trip behavior for critical loads

Technical snapshot

• Siemens
• B2100
• Thermal-magnetic molded case circuit breaker (MCCB)
• 100A
• 240V
• 2
• Bolt-on
• Branch circuit overcurrent and short-circuit protection

With the Siemens B2100, you’re choosing a proven protective solution that aligns with OEM panel designs, delivers solid mechanical performance, and provides dependable protection where it matters most. It’s the thoughtful choice for installers who demand consistency, longevity, and straightforward maintenance in every installation.