Square D, QO, QOB31001021, 100A, 3P, 120/240V, 10kA, Thermal Magnetic Shunt Trip, Bolt-On, Circuit Breaker

Square D QOB31001021: 100 Amp, 3-Pole, thermal magnetic circuit breaker with AC shunt trip, 120/240V, 10kA interrupt rating, bolt-on mounting, HACR rated, UL listed.

• Manufacturer: Schneider Electric

• Brand: Square D

• Product Range: QO / QOB (for Square D QO and QOB loadcenters and panelboards)

• UPC: 785901031024

• Model Number: QOB31001021

• Breaker Type: Thermal Magnetic Circuit Breaker with AC Shunt Trip

• Amperage: 100 Amps

• Poles: 3-Pole

• Voltage: 120/240 Volts AC

• Interrupt Rating: 10 kAIC

• Mounting Mode: Bolt-On

• Connection Terminals: Box Lugs

• Wire Size: #4–2/0 AWG Cu/Al

• Tightening Torque: 49.6 lb-in

• Dimensions: Height: 3.50 in; Width: 3.00 in; Depth: 2.90 in

• Weight: 1.349 lbs

• Certifications: UL Listed, CSA Certified, HACR Rated

• Trip Sensitivity: Not Applicable

This Square D QOB31001021 100A 3-pole bolt-on thermal magnetic circuit breaker with AC shunt trip provides reliable overcurrent protection and remote tripping capability for 120/240V systems in QO and QOB loadcenters and panelboards, supporting commercial and industrial control applications.

There is a $15 charge for delivery under $250 orders. Additional charges will be imposed by our couriers for delivery to remote areas, a surcharge may be levied to cover carriage to these areas.

Warranty Coverage

We stand behind every product we sell. Coverage depends on the condition of the item at time of purchase:

• New: 12-month warranty
• New Open Box: 10-month warranty
• Reconditioned: 90-day warranty

Warranty coverage begins on the date of delivery and covers manufacturing and functional defects under normal use. It does not cover damage from misuse, improper installation, or unauthorized repair. To make a warranty claim, contact us at support@breakersmart.com with your order number and a description of the issue.