QOU390 - 90Amp Circuit Breaker

QOU390 - 90Amp Circuit Breaker

Upgrade your electrical safety and efficiency with the Schneider Electric QOU390 Miniature Circuit Breaker, a high-performance solution designed for both residential and commercial applications. Engineered for reliability and backed by industry certifications, this 90 amp 3-pole breaker delivers superior circuit protection at 240 VAC with a robust 10kA interrupting capacity, making it an ideal choice for demanding load centers. With VisiTrip™ trip indication, you gain immediate visual confirmation of a tripped breaker, drastically reducing downtime and improving maintenance efficiency.

Key Features and Benefits

• High Amperage Rating: Handles up to 90 amps, ensuring powerful protection for larger circuits.
• VisiTrip™ Technology: Integrated trip indicator provides visual status feedback, enabling faster diagnostics.
• Triple Pole Design: Ideal for 3-phase systems or multi-circuit installations, ensuring broad compatibility.
• 10kA Interrupting Capacity: Offers strong short-circuit protection to safeguard your electrical infrastructure.
• Universal Mounting: Supports flush, surface, or DIN rail installations to match any application environment.
• Lug Terminals: Slotted box lugs on both line and load sides for secure, straightforward wiring.

Technical Specifications

• Current Rating: 90 Amps
• Voltage Rating: 120/240 VAC
• Poles: 3
• Breaking Capacity: 10,000 Amps (10kA)
• Mounting Type: Unit mount (flush, surface, or DIN rail)
• Conductor Size Compatibility: AWG 12 to AWG 2/0 (Aluminum/Copper)
• Dimensions: 4.45" H x 2.25" W x 2.95" D
• Torque Requirements: 45 lbf.in (5.08 N·m)

Material Compliance and Certifications

• UL Listed (UL File E84967 DIVQ)
• CSA Certified (C22.2 No. 5-02)
• IEC Compliant
• EU RoHS Directive Compliant – free from hazardous substances

Suitability

• The QOU390 Miniature Circuit Breaker is perfectly suited for residential and light commercial environments that require dependable overcurrent protection with minimal maintenance. Whether you're outfitting a new facility, upgrading an electrical panel, or replacing outdated protection systems, this breaker delivers high-value functionality and long-term peace of mind. Its thermal-magnetic trip unit ensures safety under both overload and short-circuit conditions, while its compact, modular form factor streamlines installation in confined spaces.

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