HLB3350 - 350Amp Circuit Breaker

HLB3350 - 350Amp Circuit Breaker

When you’re replacing a breaker in existing equipment, getting the details right matters. The HLB3350 is a 350-amp, 3-pole thermal-magnetic circuit breaker with an interchangeable trip unit and a 40°C rating. It is intended for applications requiring an HLB-type breaker with the same electrical and physical specifications.

Key Features and Benefits

• 350 amp, 3-pole configuration for equipment requiring these specific electrical characteristics.
• Thermal-magnetic operation provides the trip functionality for this breaker design.
• Interchangeable trip unit supports the intended HLB configuration.
• 40°C rated for applications designed around this temperature rating.
• Load-side terminals are included, an important detail when matching the breaker to an existing installation.
• Well suited to form, fit, and functional replacement applications where the existing equipment calls for an HLB3350 or a properly verified compatible configuration.
  

Technical Specifications

• Part Number: HLB3350
  
• Type: HLB
  
• Breaker Type: Thermal Magnetic
  
• Amperage: 350 A
  
• Number of Poles: 3
  
• Temperature Rating: 40°C
  
• Trip Unit: Interchangeable
  
• A.I.C. Rating at 600VAC: 25k
  
• A.I.C. Rating at 480VAC: 35k
  
• A.I.C. Rating at 240VAC: 65k
  
• Width: 5.50 in.
  
• Height / Length: 10.13 in.
  
• Depth: 3.94 in.
  
• Overall Dimensions: 5.50"W x 10.13"L x 3.94"D
  
• Approximate Shipping Weight: 15.00 lbs.
  
• Terminals: Load-side terminals included
  

Material Compliance and Certifications

No specific material compliance standards, agency certifications, or listing information were included in the supplied specifications for the HLB3350. For that reason, certifications such as UL, CSA, RoHS, or similar standards should not be assumed based on this description alone.

If a particular certification or material requirement is necessary for the installation, verify it using the applicable product documentation and the requirements of the equipment in which the breaker will be installed.

Where It Works Best

The HLB3350 350-amp circuit breaker makes the most sense for existing commercial, industrial, institutional, or facility electrical equipment that requires an HLB-type, 3-pole thermal-magnetic breaker with matching specifications. This is particularly relevant when maintaining older or legacy electrical systems, where form, fit, and function must remain consistent with the established equipment configuration.