Square D QO290 - 90A, 2-Pole, Circuit Breaker

Meet the Square D QO290 — a sturdy 90A, 2-pole circuit breaker designed to deliver dependable overcurrent protection where it matters most. Built for panelboards, switchboards, and control panels, this device safeguards electrical distribution against overloads and faults, helping keep critical operations up and running.

• 90A current rating provides reliable protection for mid-range motors and feeders without unnecessary trips.
• 2-pole design ensures both hot conductors trip together for safer disconnects and cleaner fault isolation.
• QO-series compatibility designed for use in Square D panelboards, switchboards, and control panels for straightforward integration and maintenance.
• Versatile for industrial, commercial, and OEM applications ideal for distribution panels and motor control centers where dependable protection is critical.
• Easy installation and serviceability follows standard mounting and wiring practices, enabling quick upgrades and minimal downtime.

Key specifications

• Current rating: 90A
• Poles: 2-Pole
• Breaker type: Circuit Breaker

Ideal for

This breaker is a smart choice for environments where robust protection and reliable operation are non-negotiable—industrial facilities, commercial electrical rooms, and OEM equipment builds that depend on consistent, safe power distribution and rapid fault clearing.

Use cases and scenarios

• Motor control centers in manufacturing lines requiring dependable overload and short-circuit protection.
• feeders and power distribution in panelboards and switchgear supporting HVAC, lighting, and critical machinery.
• OEM panels and assemblies where a compact, proven 90A, two-pole solution simplifies design and maintenance.

Why choose the QO290? It combines the proven reliability of the Square D QO family with a 90A rating tailored for mid-size circuits, offering precise protection without compromising on performance. The two-pole configuration enhances safety by ensuring simultaneous disconnection of both conductors, reducing arc risk and simplifying diagnostics during service windows. In short, it’s a practical, durable choice for safeguarding distribution panels and motor control centers across industrial, commercial, and OEM applications.

Upgrade your electrical protection with the Square D QO290 — a purpose-built solution that keeps systems protected, downtime to a minimum, and operations running smoothly.