Square D | QOB120HID | Circuit Breaker | 20A | 1-Pole | 240V | Bolt-On

Experience dependable overcurrent protection with the Square D QOB120HID Circuit Breaker — a 20A, 1-pole, 240V bolt-on solution engineered for precise fit in compatible panels. Designed for maintenance, retrofit, and replacement projects where exact specs matter, this breaker keeps your 240V circuits safeguarded with reliable performance.

Built for real-world use

• 20A, 1-Pole, 240V — Targeted protection for a dedicated 240V circuit while maintaining a compact, straightforward install.
• Bolt-On mounting — Secure, durable connection to the bus in panels that accept bolt-on breakers, helping ensure stable protection and simple serviceability.
• QOB family compatibility — Part number QOB120HID is the best reference for matching fit and ratings in the right Square D panel configuration.

Why this model matters: it’s purpose-built for panels that support bolt-on QOB breakers, delivering reliable trip performance and a clean, tidy installation without adapters or special hardware. If your project requires a precise 20A, 240V, 1-pole solution in a bolt-on format, the QOB120HID is designed to meet those needs.

Ideal use cases

• Maintenance replacements in Square D panels that accept QOB bolt-on breakers
• Retrofit upgrades to add or restore 240V circuit protection in existing electrical systems
• New installations for dedicated 240V circuits in workshops, small offices, and light commercial settings

Quick-fit and installation tips

• Always confirm fit and ratings before ordering—the part number is the best reference for compatibility with your panel labeling and bus arrangement.
• Power down the panel and follow proper lockout/tagout procedures before handling or replacing breakers.
• Verify panel labeling supports the QOB bolt-on style and ensure correct torque on mounting hardware per manufacturer guidelines.
• After installation, test the circuit with the appropriate testing procedures to confirm proper trip action and operation.

With the Square D QOB120HID, you get a purpose‑built, reliable protection solution tailored for 240V, single‑pole applications in compatible panels. It’s the right choice for electricians and DIY enthusiasts who demand precise compatibility, straightforward installation, and dependable circuit protection for essential loads.