Square D QOB230GFI - 30 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Square D QOB230GFI is a dependable 30-amp, 240-volt, 2-pole bolt-on molded case circuit breaker designed to protect your electrical system where it matters most—panelboards and loadcenters. Built for residential, commercial, and light industrial applications, this breaker delivers reliable overcurrent and short-circuit protection with long-term durability you can trust.

Key advantages

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays solid through equipment operation and wear.
• Thermal-magnetic trip unit provides stable, repeatable protection across varying load conditions, reducing nuisance trips while responding quickly to real faults.
• OEM-ready compatibility designed to pair with matching Square D OEM loadcenters and panelboards, making upgrades or replacements straightforward.
• 2-pole, 30A, 240V molded case construction delivers focused protection for multi-wire circuits and shared neutral configurations common in modern panels.

What it protects and how it helps

As a branch circuit overcurrent and short-circuit protector, the QOB230GFI guards individual circuits against damage from overloads. The combination of a robust bolt-on mounting and a precise thermal-magnetic trip ensures consistent performance over time, so you can rely on predictable trips when faults occur and avoid unnecessary interruptions during normal operation.

Technical specifications

• Manufacturer: Square D
• Part number: QOB230GFI
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 30A
• Voltage rating: 240V
• Number of poles: 2
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Perfect for upgrading or outfitting panelboards and loadcenters in:

• Residential electrical service panels upgrading to meet current demands
• Commercial subpanels feeding lighting, receptacle circuits, and small equipment loads
• Light industrial panels protecting motor-start and control circuits

Installation and compatibility tips

To maximize performance, pair this bolt-on breaker with compatible OEM panels from Square D. Ensure the panel is designed for bolt-on units and follow standard electrical practices for securing the bus connection. Regularly inspect mounting hardware and maintain clean, corrosion-free contact surfaces to preserve the integrity of the circuit protection over time.

Choose the Square D QOB230GFI from AmpState for a genuine, OEM-aligned solution that prioritizes reliability, compatibility, and long-term protection across your electrical infrastructure.