QOB2125 - 125 Amp Circuit Breaker

QOB2125 - 125 Amp Circuit Breaker

If you need dependable protection for a higher-amperage branch circuit, the QOB2125 is built for the job. This 2-pole, 125-amp bolt-on circuit breaker is made for compatible QOB panelboards and helps protect electrical systems from overloads and short circuits before they become bigger problems.

The bolt-on design gives the breaker a secure connection inside the panel, making it a popular choice for commercial and industrial applications where reliability matters every day. Rated 10kA at 120/240VAC, the QOB2125 is well-suited for protecting larger loads while fitting into compatible panelboards without taking up unnecessary space.

Electricians often replace breakers as part of panel upgrades, routine maintenance, or repairs after a breaker has reached the end of its service life. Choosing the correct replacement helps keep the system operating as intended. If your equipment calls for a QOB2125, this breaker delivers the electrical ratings and bolt-on configuration needed for compatible installations.

Key Features and Benefits

• 125 amp current rating: For higher-capacity branch circuits.
• Two-pole design: With common-trip protection.
• Bolt-on mounting: For a secure installation.
• 10kA interrupting rating: At 120/240VAC.
• Fits compatible QOB panelboards: Designed for compatible installations.
• Protective function: Helps protect electrical equipment from overloads and short circuits.
• Compact size: For compatible panel applications.

Technical Specifications

• Part Number: QOB2125
• Type: QOB
• Mounting Style: Bolt-On
• Poles: 2
• Amperage: 125 Amps
• Voltage Rating: 120/240 VAC
• A.I.C. Rating: 10kA @ 120/240VAC
• Dimensions:
  • Height: 3.5 in.
  • Width: 1.5 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Installation Compatibility: The QOB2125 is manufactured for use in electrical distribution systems and is intended for installation in compatible equipment.
• Installation Requirements: Always verify compatibility with your panelboard and follow applicable electrical codes and manufacturer installation requirements.

Where It Works Best

• The QOB2125 is commonly found in commercial buildings, industrial facilities, office buildings, retail spaces, schools and universities, healthcare facilities, electrical panel replacements and upgrades, and preventive maintenance projects. Its combination of a 125 amp rating, 2-pole protection, and bolt-on mounting makes it a practical choice wherever compatible QOB panelboards are used.