QO120HM - 20Amp Circuit Breaker

QO120HM - 20Amp Circuit Breaker

The QO120HM is a 20 Amp, single-pole Type QO-HM circuit breaker with a plug-on design for use in your compatible 120VAC electrical distribution equipment. It provides overcurrent and short-circuit protection while featuring a high magnetic trip rating, making it a suitable option for circuits that experience higher inrush current during equipment startup.

This breaker carries a 10kA interrupting rating at 120VAC and is commonly used where dependable branch circuit protection is needed without unnecessary trips caused by brief current surges. Its compact size also makes it a straightforward replacement when servicing compatible load centers and panelboards. Before installation, always confirm that the breaker matches your panel and the requirements of the electrical system.

Key Features and Benefits

• 20 Amp current rating.
• Single-pole breaker.
• Type QO-HM configuration.
• Plug-on installation.
• High-magnetic-trip characteristic for higher-inrush-current applications.
• 10kA interrupting capacity at 120VAC.
• Protects branch circuits against overloads and short circuits.
• Fits compatible electrical distribution equipment.
  

Technical Specifications

• Part Number: QO120HM
  
• Type: QO-HM
  
• Poles: 1
  
• Amperes: 20A
  
• Voltage: 120VAC
  
• Interrupting Rating: 10kA @ 120VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 0.75 in.
  • Depth: 2.5 in.
• Mounting: Plug-On
  

Material Compliance and Certifications

• Designed for use in compatible electrical distribution equipment.
• Install in accordance with applicable local and national electrical codes.
• Confirm compatibility with the intended panelboard or load center before installation.
  

Where It Works Best

• The QO120HM is well suited for commercial and industrial electrical systems that include equipment with higher startup current, such as small motors, transformers, pumps, compressors, and similar loads. It is also a practical replacement for existing compatible Type QO-HM breakers during maintenance or repairs.