Siemens BQ3B080 - 80 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens BQ3B080 is a 3-pole bolt-on molded case circuit breaker engineered to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters. With an 80-ampere rating at 240 volts, this unit is built to handle demanding electrical loads while maintaining stable, repeatable protection performance.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays aligned under startup transients and ongoing system vibration.
• Thermal-magnetic trip unit delivers reliable, predictable protection by combining fast magnetic response for short circuits with thermal protection for overloads, reducing nuisance trips in normal operation.
• OEM-compatible design engineered to be compatible with matching Siemens OEM loadcenters and panelboards, ensuring proper fit and coordinated protection characteristics.
• Versatile applications suitable for residential, commercial, and light industrial installations where compact, dependable overcurrent protection is essential.

The BQ3B080 is a three-pole solution that consolidates protection, reliability, and ease of integration. It’s ideal for panelboards and loadcenters where tight space and consistent performance matter—think main distribution panels in small to mid-size facilities, service upgrade projects, or retrofit work in existing electrical rooms. Why choose the Siemens BQ3B080? This breaker isn’t just a switch; it’s a engineered protection device designed to maintain electrical system integrity. The bolt-on mounting reduces the risk of connection loosening in busy electrical rooms, while the thermal-magnetic trip unit provides stable, repeatable protection across changing loads and temperatures. Pair it with compatible Siemens panelboards for a cohesive protection strategy that aligns with your existing equipment.

Manufacturer: Siemens

Part Number: BQ3B080

Type: Thermal-magnetic molded case circuit breaker

Amperage Rating: 80A

Voltage Rating: 240V

Number of Poles: 3

Mounting Style: Bolt-on

Application: Branch circuit overcurrent and short-circuit protection

Whether you’re upgrading an older panel or wiring a new installation, the Siemens BQ3B080 delivers precise protection, durable construction, and seamless compatibility with Siemens panel systems. For contractors and facility managers seeking a trusted, purpose-built solution for 3-pole, 80A protection at 240V, this bolt-on breaker from AmpState is designed to meet the demands of today’s electrical environments.