Square D QOU130 - 30 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D QOU130, a 30A, 120V, 1-pole bolt-on molded case circuit breaker designed to protect your electrical system with dependable overcurrent and short-circuit protection. Built for panelboards and loadcenters from compatible OEM families, this breaker delivers reliable performance where it matters most—in homes, small commercial spaces, and light industrial setups.

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection. This design minimizes contact fatigue and arcing risk in panels that experience routine vibration or movement, helping maintain a stable, long-term electrical connection.
• Thermal-magnetic trip unit combines a thermal element for accurate overload sensing with magnetic trip for swift short-circuit response. The result is stable, repeatable protection across varying ambient temperatures and fault conditions.
• OEM-friendly compatibility engineered to work with matching Square D OEM loadcenters and panelboards, ensuring straightforward upgrading or replacement without compatibility concerns.
• Versatile, safe protection ideal for protecting branch circuits that power lighting, outlets, small equipment, and other everyday loads in residential, commercial, and light industrial environments.

Technical snapshot

• Manufacturer: Square D
• Part Number: QOU130
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

What makes this breaker a smart choice

• Reliability in dynamic environments—the bolt-on design maintains a solid connection even in installations with movement or vibration, reducing the risk of intermittent faults.
• Consistent protection—the thermal-magnetic trip responds to both sustained overloads and sudden faults, helping prevent damage to wiring and connected devices.
• Clear compatibility—specifically paired for seamless integration with matching OEM loadcenters and panelboards, making replacements or upgrades predictable and straightforward.
• Targeted use cases—perfect for circuits that power lighting runs, receptacle banks, or small equipment circuits in homes, retail spaces, offices, and light production areas.

Practical guidance and use cases

• Ideal for upgrading aging panels or configuring new branches in residential remodels where a compact, single-pole solution is sufficient.
• Suitable for service feeders in light commercial spaces that require reliable, straightforward overcurrent protection without complex wiring rearrangements.
• A practical replacement option when you need a robust bolt-on breaker that aligns with your existing Square D panelboard ecosystem.

Installation and safety notes

• Install in accordance with applicable electrical codes and standards. This unit is designed for use in compatible panelboards and loadcenters.
• Confirm your circuit load aligns with the 30A rating and 120V supply to ensure proper protection and performance.
• Consult a qualified electrician for mounting, wiring, and commissioning to maximize safety and reliability.

Choose the Square D QOU130 when you need a purpose-built, durable, single-pole bolt-on breaker that delivers precise protection for everyday circuits. It’s a practical, OEM-aligned solution crafted for longevity and dependable operation in real-world electrical systems.