HMA3250 - 250Amp Circuit Breaker

HMA3250 - 250Amp Circuit Breaker

When you’re replacing a breaker in an existing electrical system, getting the details right matters. The HMA3250 is a 250-amp, 3-pole thermal-magnetic circuit breaker designed for applications that require an HMA-type breaker with these specific electrical and physical characteristics.

Key Features and Benefits

• 250 Amp, 3-pole configuration for compatible electrical distribution applications
• Thermal magnetic operation for the specified HMA breaker design
• Interchangeable trip unit for applications requiring this configuration
• Rated for operation at 40°C
• Load-side terminals are included
• Clearly defined dimensions make physical fit easier to verify before installation
• A practical choice for form, fit, and functional replacement in compatible legacy equipment
  

Technical Specifications

• Part Number: HMA3250
  
• Type: HMA
  
• Breaker Type: Thermal Magnetic Circuit Breaker
  
• Amperage: 250 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

No specific material compliance certifications or agency listings were provided in the available HMA3250 specifications. UL, CSA, RoHS, or other certification status should therefore not be assumed.

If a particular listing or compliance requirement is important for the installation, check the breaker markings and applicable equipment documentation before use.

Where It Works Best

The HMA3250 circuit breaker is a good fit for existing and legacy electrical systems that require an HMA-type 250-Amp, 3-pole thermal-magnetic breaker. It is particularly relevant when maintaining equipment where matching the original breaker's footprint and operating characteristics is more important than changing the system configuration.