CHB320 - 20Amp Circuit Breaker

CHB320 - 20 Amp Circuit Breaker

The CHB320 circuit breaker is a 3-pole, 20-amp bolt-on breaker designed for use in compatible CHB frame panelboards and distribution equipment. Rated at 10k A.I.C. at 240VAC, this breaker is built to provide dependable overcurrent and short-circuit protection in commercial and industrial electrical systems. Its bolt-on mounting style ensures a secure mechanical and electrical connection to the panel bus, helping maintain proper contact and consistent performance over time. The CHB320 is engineered for proper form, fit, and function as a direct replacement in existing systems requiring a CHB frame 3-pole breaker with a 20A rating. Built to last and designed for compatibility, it supports continued operation of established electrical infrastructure without modification.

Key Features and Benefits

• 20 Amp Rating – Designed to protect branch circuits requiring 20A overcurrent protection.
• 3-Pole Configuration – Suitable for three-phase applications requiring coordinated protection across all phases.
• 10kA Interrupting Capacity at 240VAC – Rated to safely interrupt fault currents up to 10,000 amps at 240 volts AC.
• CHB Frame Type – Matches panels and equipment designed for CHB bolt-on breakers.
• Bolt-On Mounting – Provides secure installation and stable bus connection in compatible panelboards.
• Built to Last – Manufactured for durability and long service life in properly maintained electrical systems.
  

Technical Specifications

• Part Number: CHB320
  
• Amperage: 20 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Rating (A.I.C.): 10kA @ 240VAC
  
• Frame Type: CHB
  
• Mounting Style: Bolt-On
  
• Approximate Shipping Weight: 2.25 lbs
  
• Dimensions (Shipping Height): 3.0 inches
  

Material Compliance and Certifications

• The CHB320 circuit breaker is manufactured and tested to meet applicable industry standards for molded case circuit breakers.
• It is designed for use in systems that require compliance with recognized electrical safety codes and installation practices.
• Proper installation by a qualified professional helps ensure adherence to NEC guidelines and local regulatory requirements.
  

Where It Works Best

• The CHB320 is well suited for:
• Commercial panelboards requiring CHB frame bolt-on breakers
• Industrial distribution systems operating at 240VAC
• Three-phase branch circuit protection
• Maintenance and replacement projects where matching amperage, frame type, and interrupting rating are essential