Square D QOB130 - 30 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D QOB130 — a 30A, 120V, 1-pole bolt-on molded case circuit breaker engineered for reliable branch circuit protection in panelboards and loadcenters. Its sturdy design and precise trip technology help keep electrical systems safe and operation smooth, even in demanding environments.

• Secure bolt-on mounting: A rigid, vibration-resistant bus connection that stays put in busy panels, reducing the chance of loose connections over time.
• Thermal-magnetic trip unit: Combines a dependable thermal overload mechanism with an instantaneous magnetic trip for short-circuit events, delivering stable, repeatable protection performance.
• OEM-compatible: Designed to pair with matching Square D loadcenters and panelboards for convenient, code-compliant installations.
• Broad applicability: Ideal for residential, commercial, and light industrial wiring projects where reliable protection is essential.

This 1-pole, 30-amp, 120-volt breaker is purpose-built to protect individual branch circuits from overcurrent and short circuits, helping to prevent damage to wiring and connected equipment. The bolt-on mounting and molded-case construction simplify installation in compatible panelboards, while the thermal-magnetic trip ensures consistent performance across varying loads and conditions.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: QOB130
• 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

Whether upgrading an existing panel or outfitting a new installation, the Square D QOB130 delivers dependable, code-compliant protection with a design that stands up to real-world use. Choose this 30A, 120V, 1-pole bolt-on breaker for a trusted, durable solution in residential, commercial, and light industrial electrical systems.