Q320HH - 20Amp Circuit Breaker

Q320HH - 20Amp Circuit Breaker

The Q320HH circuit breaker is a 20-amp, 3-pole HQP plug-in circuit breaker designed for dependable circuit protection in your compatible 240VAC electrical distribution equipment. With a 65k AIC (65,000-amp interrupting capacity) rating at 240VAC, the Q320HH is well suited to applications where a higher available fault-current rating is required. Its three-pole configuration provides simultaneous protection across three conductors, while the plug-in design supports straightforward installation in compatible equipment. Measuring approximately 3.13 inches high, 3.0 inches wide, and 2.56 inches deep, this compact breaker delivers substantial interrupting capability without taking up unnecessary space. The Q320HH is also HACR-rated, making it suitable for qualifying heating, air-conditioning, and refrigeration applications when installed in approved equipment. For electricians, facility maintenance teams, contractors, and equipment professionals searching by exact part number, the Q320HH combines a 20A rating, three-pole configuration, 240VAC capability, and high 65k AIC rating in one practical circuit-protection solution.

Key Features and Benefits

• Provides 20A circuit protection for compatible electrical loads and equipment.
• 3-Pole configuration designed to provide common circuit protection across three conductors in applicable electrical systems.
• A high 65,000-amp interrupting rating provides added capability for installations with higher available fault current.
• Part of the HQP breaker family, providing a high interrupting rating while maintaining a compact form factor.
• The plug-in connection style helps simplify installation and replacement when used with compatible electrical equipment.
• HACR-rated, suitable for qualifying heating, air-conditioning, and refrigeration equipment applications.
• At approximately 3.13" H x 3.0" W x 2.56" D, the breaker fits into compatible panel and distribution configurations without unnecessary bulk.
• The Q320HH catalog number clearly identifies the breaker as the 20A, three-pole model in the applicable HQP product family.

Technical Specifications

• Part Number: Q320HH
  
• Product Type: Circuit Breaker
  
• Type: HQP
  
• Amperage: 20A
  
• Number of Poles: 3
  
• Voltage: 240VAC
  
• A.I.C. Rating: 65kA @ 240VAC
  
• Connection / Mounting Style: Plug-In
  
• HACR Rated: Yes
  
• Temperature Reference: 40°C
  
• Dimensions:
  • Height: 3.13 in.
  • Width: 3.0 in.
  • Depth: 2.56 in.

Material Compliance and Certifications

• The Q320HH HQP circuit breaker is HACR rated for applicable heating, air-conditioning, and refrigeration applications. Published documentation for the QP/QPH/HQP miniature circuit breaker family identifies UL 489, CSA C22.2 No. 5-16, and NMX-J-266-ANCE standards and confirms that HQP breakers carry a 65k interrupting rating. The same documentation specifically lists Q320HH as the 20-amp, three-pole HQP catalog number. Always verify the breaker markings, equipment requirements, applicable electrical codes, and panel compatibility before installation.
  

Where It Works Best

• The Q320HH 20A 3-pole circuit breaker is a strong choice for compatible residential, commercial, and electrical distribution applications requiring three-pole 20-amp protection at up to 240VAC and a 65k AIC rating. It is particularly useful where the available fault current calls for greater interrupting capacity than a standard-rated breaker can provide. Its HACR rating also makes it appropriate for qualifying HVAC and refrigeration equipment circuits. Because circuit breaker interchangeability depends on the specific panel, load center, switchboard, or other distribution equipment, confirm that HQP plug-in breakers and the Q320HH part number are approved for the intended equipment before installation.