HMA3225 - 225Amp Circuit Breaker

HMA3225 - 225Amp Circuit Breaker

The HMA3225 is a 225-amp, 3-pole thermal-magnetic circuit breaker used in electrical equipment designed around the HMA breaker configuration. This makes the HMA3225 especially useful for maintenance and replacement jobs where the original breaker arrangement must remain unchanged. If you’re replacing an existing unit, check the full specification—not just the 225 Amp rating. Pole count, voltage, AIC rating, trip configuration, terminals, and physical size all matter.

Key Features and Benefits

• 225 Amp, 3-pole design for compatible HMA applications
• Uses a thermal magnetic trip configuration
• Interchangeable trip unit
• Rated at 40°C
• Comes with load-side terminals
• Fixed dimensions make physical fit easier to check against the breaker being replaced
• A practical option for maintaining compatible legacy electrical equipment
• Designed around form, fit, and functional replacement when the existing specifications match
• Built to last within its intended operating conditions
  

Technical Specifications

• Part Number: HMA3225
  
• Type: HMA
  
• Product Type: Thermal Magnetic Circuit Breaker
  
• Amperage: 225 Amps
  
• Poles: 3
  
• Temperature Rating: 40°C
  
• Trip Unit: Interchangeable
  
• AIC at 600VAC: 25k
  
• AIC at 480VAC: 35k
  
• AIC at 240VAC: 65k
  
• Width: 8.25 in.
  
• Height / Length: 16.00 in.
  
• Depth: 4.00 in.
  
• Dimensions: 8.25"W x 16.00"L x 4.00"D
  
• Approx. Ship Weight: 46.00 lbs.
  
• Terminals: Load-side terminals included
  

Material Compliance and Certifications

Specific material compliance and certification information was not included in the available specifications for the HMA3225. Because of that, UL, CSA, RoHS, or other listings should not be assumed from the product information alone.

Where a particular certification or listing is required, confirm the markings on the actual breaker and check them against the requirements of the equipment and installation.

Where It Works Best

The HMA3225 is best suited to existing electrical systems that require an HMA-type 225-amp, 3-pole thermal-magnetic circuit breaker with an interchangeable trip unit. It’s particularly relevant for maintenance and repair work on legacy equipment where changing the established breaker configuration isn’t the goal.

For replacement work, start with the existing breaker and work through the details. Confirm the HMA type, 225 Amp rating, three poles, system voltage, required AIC rating, 40°C rating, dimensions, trip-unit arrangement, and load-side terminal configuration.