Siemens QJ22B080H - 80 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Siemens QJ22B080H is a dependable 2-pole bolt-on molded case circuit breaker engineered for reliable branch circuit protection in panelboards and load centers. With an 80-amp rating at 240 volts, this device delivers solid, predictable performance when protection is non-negotiable—whether you’re wiring a residential subpanel, a small commercial enclosure, or a light industrial feeder.

Why this breaker stands out

• Rigid bolt-on mounting ensures a secure, vibration-resistant bus connection, reducing the risk of loose contacts that can degrade protection over time.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding to both overcurrent (thermal) and short-circuit (magnetic) conditions—so you get fast, reliable isolation when faults occur.
• OEM-compatible design is built to pair with matching Siemens load centers and panelboards, helping you maintain consistent performance and system coordination.
• Versatile application suitable for residential, commercial, and light industrial electrical systems, making it a practical choice for a range of panel configurations.

What problems it solves

• Prevents dangerous overcurrent conditions from damaging wiring and equipment in panelboards and load centers.
• Delivers predictable nuisance-trip resistance thanks to a calibrated thermal-magnetic mechanism, minimizing unnecessary interruptions.
• Supports long-term reliability in environments with vibration or movement due to its secure bolt-on mounting.

Ideal use cases

• Residential main distribution or subpanel installations requiring robust 80A protection.
• Commercial subpanels or light industrial panels where dependable short-circuit protection is essential.
• Retrofits or upgrades in existing Siemens OEM systems to maintain compatibility and performance standards.

Technical specifications

• Manufacturer: Siemens
• Part Number: QJ22B080H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 80 A
• Voltage Rating: 240 V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical installation tips

• Ensure your panelboard or load center is compatible with bolt-on Siemens breakers to maintain proper fit and protection coordination.
• Follow manufacturer torque specifications for bolt-on mounting to safeguard the integrity of the electrical connection.
• Use in configurations where a reliable, fast-acting thermal-magnetic trip is beneficial for protecting conductors and connected equipment.

Designed to deliver consistent protection in a compact, service-friendly package, the Siemens QJ22B080H 80A 240V 2-pole bolt-on circuit breaker is a solid choice for anyone aiming to upgrade or specify a dependable, OEM-compatible solution for panelboards and load centers. If you’re prioritizing secure mounting, precise protection, and compatibility within Siemens systems, this unit from AmpState is engineered to meet your expectations.