QOB120 **Older Style** 20A Circuit Breaker

QOB120 **Older Style** 20A Circuit Breaker

The QOB120 Older Style bolt-on circuit breaker is a 1-pole, 20-amp thermal-magnetic circuit breaker designed for use in your compatible QOB panelboards and electrical distribution equipment. Featuring a bolt-on mounting design, this breaker provides a secure mechanical connection that helps you maintain dependable electrical contact in commercial, industrial, and institutional applications. Built for 120/240VAC systems with a 10kA AIC interrupting rating, the QOB120 is intended as a form, fit, and functional replacement for compatible older-style installations where maintaining the original panel configuration is important. Designed to provide reliable overcurrent and short-circuit protection, these breakers are built to last when properly installed and maintained.

Key Features and Benefits

• QOB120 Older Style
• 20 Amp continuous current rating.
• Single-pole (1P) configuration.
• Bolt-on mounting for secure installation in compatible panelboards.
• Type QOB circuit breaker.
• 10 kA AIC interrupting rating at 120/240 VAC.
• The thermal-magnetic trip mechanism helps protect circuits from overloads and short circuits.
• Designed for compatibility with appropriate legacy electrical distribution systems.
• Compact footprint simplifies installation where compatible equipment is already in service.
• Built to last for dependable operation in properly maintained electrical systems.
  

Technical Specifications

• Manufacturer Part Number: QOB120 Older Style
  
• Type: QOB
  
• Mounting Style: Bolt-On
  
• Poles: 1
  
• Amperage: 20A
  
• Voltage: 120/240VAC
  
• Interrupting Rating (AIC): 10kA
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 0.75 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Designed for use in accordance with applicable electrical installation practices.
• Intended for installation in compatible Type QOB panelboards and distribution equipment.
• Voltage and interrupting ratings should always match the requirements of the electrical system and applicable codes.
• Installation and servicing should be performed by qualified personnel in accordance with all applicable local, state, and national electrical regulations.
  

Where It Works Best

• The QOB120 Older Style circuit breaker is well-suited for maintaining compatible commercial, industrial, and institutional electrical distribution systems that utilize Type QOB bolt-on circuit breakers. It is commonly used for protecting branch circuits supplying lighting, receptacles, control panels, and other general-purpose loads where a 20-amp, single-pole, 120/240VAC breaker with a bolt-on configuration is required. Its form, fit, and functional compatibility make it an appropriate replacement choice for existing installations that require the original mounting style and electrical ratings.