Square D Q1290 - 90A, Circuit Breaker

Meet the Square D Q1290 90A circuit breaker—a trusted safeguard for electrical systems that demand consistent protection and minimal downtime. Engineered for heavy use in panelboards, switchboards, control panels, and OEM equipment, this 90-amp breaker delivers reliable overcurrent protection where it matters most—across distribution panels and motor control centers.

Designed for reliability in demanding environments

• 90A current rating provides decisive protection for feeders and branch circuits in industrial and commercial installations.
• Built by Square D, a name synonymous with rugged protective devices and predictable trip behavior.
• Versatile compatibility with panelboards, switchboards, control panels, and OEM equipment, enabling straightforward integration into existing electrical infrastructure.
• Ideal for motor control centers (MCCs) and distribution panels where safety and uptime are critical.

Practical use cases

• New installations: protect critical circuits in panelboards or switchboards in manufacturing lines, warehouses, or commercial facilities.
• Retrofits and upgrades: replace aging protection with a reliable 90A breaker to restore protective coordination and reduce nuisance trips.
• OEM equipment: integrate as a standard protection device in machinery and control systems that require dependable overcurrent protection.

What makes this breaker special

• Clear, consistent trip characteristics help technicians diagnose faults quickly, reducing downtime during maintenance.
• Robust construction designed to withstand industrial environments, vibrations, and temperature variations common in distribution and MCC applications.
• Compact yet sturdy form factor that fits common Square D enclosures and standard mounting patterns.

Specifications at a glance

Current rating: 90A

Breaker type: Circuit Breaker

Applications: Panelboards, switchboards, control panels, OEM equipment; ideal for distribution panels and motor control centers

Take confident control of your electrical protection

Whether upgrading an aging panel, stocking spare parts for a busy maintenance program, or configuring OEM equipment, the Square D Q1290 90A circuit breaker provides dependable, compliant overcurrent protection that keeps operations running smoothly. Add this trusted 90A breaker to your cart and ensure your distribution network stays safe and reliable.