Siemens BQ3B100H - 100 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens BQ3B100H is a rugged, 100A, 240V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Engineered for consistent performance, it blends solid mechanical mounting with precise protection electronics to keep critical electrical systems running smoothly.

Why the BQ3B100H stands out

• Secure bolt-on mounting: A rigid, vibration-resistant connection to the bus bars helps maintain reliable contact and reduces the risk of connection creep in environments with vibrations or panel movement.
• Thermal-magnetic trip unit: Combines dependable thermal overload protection with a fast magnetic trip for instantaneous short-circuit response, delivering stable, repeatable protection across temperature and load variations.
• OEM compatibility: Specifically designed to be compatible with matching Siemens OEM loadcenters and panelboards, simplifying replacement and ensuring coordinated protection across your distribution system.
• Versatile application: Ideal for residential, commercial, and light industrial settings where reliable protection of branch circuits is essential.
• durable, molded case construction: Built to withstand daily use in panel environments, delivering consistent performance over time.

Ideal use cases

Use the BQ3B100H to protect multi-wire or three-phase branch circuits in new installations or when upgrading existing panelboards and loadcenters. It’s well-suited for service panels in homes, small-to-mid-size commercial spaces, and light industrial facilities where a robust, bolt-on protection solution is preferred.

Technical snapshot

• Manufacturer: Siemens
• Part Number: BQ3B100H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection

Whether you are stocking a warehouse panel, upgrading a residential subpanel, or equipping a light commercial distribution board, the Siemens BQ3B100H delivers reliable protection with straightforward installation. Trust Siemens’ proven protection technology, available through AmpState, to keep your electrical distribution safe and compliant.