Square D QO Circuit Breaker, 3-PH 100A

Square D QO Circuit Breaker, 3-PH 100A

The QO3100 Square D QO Circuit Breaker, 3-Pole 100A provides dependable thermal-magnetic overcurrent protection and switching for AC/DC systems using a trip-free, over-center toggle with quick make/quick break action and positive handle indication. It also features VisiTrip™ trip indication for a clear visual alert when the breaker has tripped and interrupted the circuit. Rated 100A at 120/240 VAC, with 10 kA interrupting capacity and plug-in mounting, it’s a solid choice for QO load centers requiring a 3-pole high-amperage breaker.

Country of Origin: Varies by production batch

Key Features / Specifications

• Brand / Line: Square D QO
• Part Number: QO3100
• Product Type: Miniature circuit breaker
• Poles: 3P
• Current Rating: 100 A
• Voltage Rating: 120/240 V AC
• Mounting Type: Plug-in
• Circuit Breaker Type: Standard
• Trip Indication: VisiTrip™ visual trip indicator
• Mechanism: Over-center, trip-free toggle with quick make/quick break action and positive handle indication
• Interrupt Rating (as stated): 10 kA
• Accessory Support (as stated): Factory-installed accessories available such as shunt trips, auxiliary switches, and alarm switches
• Certifications (as stated): UL Listed (UL File E84967), CSA Certified (CSA Master Contract 153555)

Ideal For

• Adding or replacing a 3-pole 100A breaker in compatible Square D QO load centers
• High-amperage branch circuits needing thermal-magnetic protection and a 10 kA interrupt rating
• Installations where visual trip status via VisiTrip™ improves troubleshooting
• Contractors standardizing on the QO breaker family for consistent performance
• Applications needing a plug-in 3-pole breaker with a trip-free toggle mechanism