Schneider Electric's Square D QO3901042 is a 3-pole miniature circuit breaker designed for reliable electrical distribution and protection. This breaker is part of the QO series, a widely recognized line for its robust performance in residential and light commercial electrical panels. The QO3901042 is engineered to safeguard circuits from overcurrent conditions, ensuring the integrity of connected equipment.

Technical details

• Series: Square D QO
• Poles: 3
• Voltage Rating: 120/240VAC
• Current Rating: 90A
• Mounting Type: Plug-in
• Interrupting Rating: Not specified; refer to manufacturer datasheet for details.
• Terminal Type: Not specified; refer to manufacturer datasheet for details.
• Wire Size Compatibility: Not specified; refer to manufacturer datasheet for details.

Applications & compatibility

The QO3901042 is suitable for use in load centers and panelboards requiring 3-pole circuit protection. Its plug-in design facilitates straightforward installation and replacement within compatible QO load centers, commonly found in residential homes, small businesses, and light industrial facilities. This breaker is ideal for protecting circuits supplying HVAC equipment, water heaters, or other high-draw appliances that require multi-pole switching.

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 Schneider Electric Square D QO3901042 or contact our technical team for cross-reference assistance with compatible QO series components.