HMA3350 - 350Amp Circuit Breaker

HMA3350 - 350Amp Circuit Breaker

When you’re replacing a breaker in an existing electrical system, getting the details right matters. The HMA3350 is a 350-amp, 3-pole thermal-magnetic circuit breaker designed for applications that require the HMA type and its specific electrical and physical characteristics. This breaker is rated at 40°C and uses an interchangeable trip unit, giving technicians a familiar configuration when maintaining compatible equipment. It also comes with load-side terminals included.

Key Features and Benefits

• 350 Amp, 3-pole configuration for compatible electrical distribution equipment
• Thermal magnetic operation provides the breaker functionality specified for this HMA model
• Interchangeable trip unit for applications designed around this trip configuration
• Rated for operation at 40°C
• Load-side terminals are included
• Defined dimensions help technicians confirm physical fit before installation
• Well suited to maintenance and replacement situations where retaining the existing HMA breaker configuration is important
  

Technical Specifications

• Part Number: HMA3350
  
• Type: HMA
  
• Breaker Type: Thermal Magnetic
  
• Amperage: 350 Amps
  
• Poles: 3
  
• Temperature Rating: 40°C
  
• A.I.C. @ 600VAC: 25k
  
• A.I.C. @ 480VAC: 35k
  
• A.I.C. @ 240VAC: 65k
  
• Trip Unit: Interchangeable
  
• Load-Side Terminals: Included
  
• 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. Shipping Weight: 46.00 lbs.
  

Material Compliance and Certifications

No specific material-compliance standards, agency listings, or certifications were included in the supplied HMA3350 specifications. Because those details can matter for certain facilities and applications, they should not be assumed based solely on the model number.

Where a project requires a particular certification or compliance standard, confirm the markings on the individual breaker and check the applicable equipment documentation before installation.

Where It Works Best

The HMA3350 circuit breaker makes the most sense for existing electrical equipment designed to accept an HMA-type 350-amp, 3-pole thermal-magnetic breaker. That can include maintenance and replacement work in industrial facilities, commercial properties, and other electrical distribution environments where keeping the original equipment configuration is important.