Square D QOMB3 70A 3P 240V Circuit Breaker, QO, Plug-On | AmpState

< p >The Square D QOMB3 is a 70 A, 3-pole, 240 V circuit breaker designed for reliable protection in panelboards, load centers, and electrical distribution systems. Built for everyday electrical work, this QO plug-on breaker delivers a straightforward, secure replacement option in environments where a direct part-number match matters. < /p >

• Direct part-number match: Specifically labeled QOMB3, it’s designed to slot into Square D panel configurations that require a 70 A, 3-pole, 240 V QO device, helping you maintain system integrity without guesswork.
• QO plug-on design: The plug-on connection speeds up installation and ensures a solid, dependable interface with the panel bus, reducing field labor time and potential wiring errors.
• Three-pole, 240-volt protection: Ideal for three-phase or multi-wire branch circuits common in commercial and industrial settings, delivering coordinated protection across all hot conductors.
• Versatile for panel builds and service upgrades: A smart choice for maintenance teams, panel builders, and spare inventory where stock and part-number accuracy streamline project timelines and reduce downtime.
• Ready for AmpState availability: This unit is available from AmpState, with support to confirm fit and compatibility if you’re matching a specific panel model or service requirement.

Who should consider this breaker? If you’re stocking spare parts for field service, assembling new panels with Square D QO components, or replacing a failed 70 A, 3P, 240 V device in a QO-compatible distribution system, the QOMB3 offers a precise, dependable fit. Its plug-on design minimizes on-site fiddling, so technicians can complete replacements quickly and safely, keeping electrical systems protected and up to code.

Practical tips for use:

• Verify your panel is a Square D QO series and that a 70 A, 3-pole, 240 V configuration matches the labeling on your distribution equipment.
• Power down the service and discharge stored energy before replacement, using proper lockout/tagout procedures.
• Store spare QOMB3 units in their original packaging to preserve performance and ease of future replacements.
• When in doubt about fit, reach out to AmpState for a quick compatibility check and part-number confirmation.