Schneider Electric (Square D) QOB120VHGFI Miniature Molded Case Circuit Breaker

Overview

The QOB120VHGFI is a high-performance, bolt-on miniature circuit breaker from Schneider Electric’s Square D QO series. Rated for 120 volts AC and 20 amps, this breaker includes integrated Class A ground fault protection (6 mA) and a thermal-magnetic trip mechanism, making it ideal for residential, commercial, and light industrial applications requiring enhanced electrical safety.

Key Specifications

• Amperage Rating: 20 Amps

• Voltage Rating: 120 VAC

• Pole Configuration: Single-pole

• Ground Fault Protection: Yes — Class A (6 mA), with pigtail

• Trip Mechanism: Thermal-magnetic (overload and short-circuit)

• Interrupting Capacity: 22,000 AIC at 120 VAC

• Mounting Type: Bolt-on

• Terminal Type: Pressure plate

• Conductor Range:

  • Copper: #14–#8 AWG

  • Aluminum: #12–#8 AWG

• Dimensions (Approx.):

  • Width: 0.75 in

  • Height: 4.12 in

  • Depth: 2.91 in

• Certifications: UL Listed, CSA Certified

• Compliance: RoHS and REACH Compliant

• Additional Feature: VisiTrip Indicator for quick fault identification

Benefits

• Integrated GFCI Protection: Built-in ground fault protection provides added safety, especially in wet or high-risk areas.

• Quick Fault Identification: VisiTrip feature clearly shows when the breaker has tripped.

• Compact & Efficient: Slim design saves panel space while maintaining high interrupting capacity.

• Safe & Versatile Wiring: Compatible with both copper and aluminum conductors.

• Reliable Performance: Thermal-magnetic trip ensures fast, consistent protection against overloads and short circuits.

Typical Applications

• Kitchens, bathrooms, laundry areas, garages, and outdoor receptacles

• Residential or commercial subpanels requiring ground fault protection

• Replacement of standard breakers to meet updated electrical codes

• Panels using Square D QO or Homeline load centers