The Schneider Electric Square D QOB3901042 is a 3-pole miniature circuit breaker designed for robust electrical system protection. This unit is part of the QOB series, a widely recognized line for its reliability in demanding environments. It is engineered to safeguard circuits against overcurrents and short circuits, ensuring operational continuity and safety in various industrial and commercial settings.

Technical Details

• Series: Square D QOB
• Poles: 3
• Amperage Rating: 90 Amps
• Voltage Rating: 240 Volts AC
• Interrupting Rating: Consult manufacturer datasheet for specific interrupting capacity (AIC).
• Terminal Type: Line and Load side lug terminals.
• Mounting Type: Bolt-on style for panelboard or switchboard installation.
• Trip Type: Thermal-magnetic trip unit for reliable overcurrent protection.

Applications & Compatibility

This 3-pole circuit breaker is suitable for use in main distribution panels, sub-panels, and motor control centers. It is commonly found protecting circuits in heavy machinery, HVAC systems, and power distribution units within manufacturing facilities, data centers, and commercial buildings. Ensure compatibility with your specific panelboard or switchgear by verifying mounting dimensions and terminal requirements.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the QOB3901042 or contact our technical team for cross-reference assistance with compatible Square D QOB components.