Square D QOB115VH - 15 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

The Square D QOB115VH delivers precise, reliable protection for your electrical distribution with a 15 A, 120 V, 1-pole bolt-on molded case circuit breaker. Designed to safeguard branch circuits in panelboards and loadcenters, this unit combines solid mechanical mounting with advanced trip technology to keep your system safe and running smoothly.

• Secure bolt-on mounting provides a rigid, vibration-resistant connection to the bus, reducing the risk of loosened connections in panels subject to movement or vibration.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overload (thermal) and short-circuit (magnetic) conditions, helping prevent damage and downtime.
• OEM-compatible design is engineered to pair with matching Square D loadcenters and panelboards, streamlining replacement and upgrade projects.
• Versatile application suitable for residential, commercial, and light industrial environments where dependable branch circuit protection is essential.

The QOB115VH is a single-pole, bolt-on molded case circuit breaker intended for protecting individual branch circuits from overcurrent and short circuits. Its 120 V rating covers typical lighting and receptacle circuits, while the 15 A capacity offers a practical balance between protection and circuit usability in everyday installations.

Technical highlights

• Manufacturer: Square D
• Part number: QOB115VH
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 15 A
• Voltage rating: 120 V
• Poles: 1
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical scenarios:

• Replacing a faulty breaker in residential panelboards that require a bolt-on, OEM-compatible solution.
• Upgrading a small commercial or light industrial distribution panel where a rigid bus connection and reliable trip performance are priorities.
• Spare or replacement part for maintenance of existing Square D systems, ensuring consistent protection characteristics across the board.

Why this matters: with a dedicated thermal-magnetic trip and a secure bolt-on installation, the QOB115VH delivers predictable protection behavior, minimizes nuisance trips, and supports long-term panel integrity—critical for keeping lights on, equipment protected, and downtime to a minimum.