HMA3350T - 350Amp Trip Unit

HMA3350T - 350Amp Trip Unit

The HMA3350T is a 350-amp, 3-pole thermal-magnetic trip unit designed for compatible MA and HMA circuit breaker frames. When you're maintaining existing electrical equipment, finding the correct trip unit is often about matching the original specifications rather than changing the system. This unit is rated for thermal magnetic operation only for MA and HMA frames and features a magnetic Hi-Low trip setting range of 1750–3500. Its compact size of 4.00" W x 7.50"L x 3.50"D makes it easier to compare against an existing trip unit before replacement, while the approximate shipping weight of 6.00 lbs. provides a helpful reference for handling and installation planning.

Key Features and Benefits

• 350 Amp rating for compatible MA and HMA frame applications
• 3-pole configuration for matching three-pole breaker assemblies
• Thermal magnetic trip operation designed for MA and HMA frames
• 1750–3500 magnetic Hi-Low trip setting range
• Compact dimensions for easier comparison with an existing trip unit
• Helps maintain compatible legacy electrical equipment
• Designed for replacement applications where the original breaker setup needs to remain unchanged
  

Technical Specifications

• Part Number: HMA3350T
  
• Type: HMA
  
• Product Type: Thermal Magnetic Trip Unit
  
• Frame Compatibility: MA and HMA Frames
  
• Amperage: 350 Amps
  
• Poles: 3
  
• Trip Type: Thermal Magnetic Only
  
• Magnetic Hi-Low Trip Setting Range: 1750–3500
  
• A.I.C. Rating & Volts: Not specified
  
• Width: 4.00 in.
  
• Height / Length: 7.50 in.
  
• Depth: 3.50 in.
  
• Dimensions: 4.00"W x 7.50"L x 3.50"D
  
• Approx. Shipping Weight: 6.00 lbs.
  

Material Compliance and Certifications

Specific material compliance information and certification details were not provided for the HMA3350T. Because of that, UL, CSA, RoHS, or other certification claims should not be assumed from the available specifications alone.

If your installation requires a specific listing or compliance standard, verify the markings on the actual component and confirm the requirements of the equipment where it will be installed.

Where It Works Best

The HMA3350T thermal magnetic trip unit is best suited for existing electrical equipment that uses compatible MA or HMA circuit breaker frames and requires a 350-amp, 3-pole trip unit with a 1750–3500 magnetic Hi-Low trip-setting range.