Square D QHB315 - 15 A, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D QHB315, a 15 A, 3-pole bolt-on molded case circuit breaker designed to shield your panelboards and loadcenters from overcurrent and short circuits. Built for reliable protection in residential, commercial, and light industrial settings, this unit is the robust choice when safety and performance matter.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays tight and dependable even in demanding installations.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding predictably to overloads and short circuits, helping prevent nuisance trips and equipment damage.
• OEM compatibility—designed to integrate with matching Square D loadcenters and panelboards for a seamless fit and straightforward replacement or expansion.
• Three-pole design suitable for three-phase circuits, common in light commercial and industrial applications.
• 15 A rating provides precise protection for branch circuits without sacrificing performance or panel layout flexibility.

Practical applications

• Residential: Protect starter circuits for three-phase equipment in upgraded homes or multi‑family installations with compatible panels.
• Commercial: Ideal for lighting, outlets, and small three‑phase loads where reliable protection and easy serviceability matter.
• Light industrial: Suitable for motor feeds and equipment in compact facilities that require dependable trip behavior and secure mounting.

Technical snapshot

• Manufacturer: Square D
• Part Number: QHB315
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15 A
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Incorporate the Square D QHB315 into your electrical protection strategy to achieve dependable, predictable performance across a range of environments. Its rugged bolt-on mounting and responsive thermal-magnetic trip unit make it an excellent choice for ensuring the safety and longevity of your panelboards and loadcenters.