FHP36045 - 45 Amp Circuit Breaker

FHP36045 - 45 Amp Circuit Breaker

Finding the correct replacement breaker is often the first step in getting an electrical system back up and running. In many cases, the equipment itself is not the problem—the challenge is locating a breaker that matches the original specifications and fits the existing installation. The Square D FHP36045 is a 45 Amp, 3-pole thermal-magnetic circuit breaker built for compatible FH applications where matching the original ratings, connections, and mounting style is important.

Key Features and Benefits

• Square D FHP36045 thermal magnetic circuit breaker
• 45 Amp current rating
• Three-pole design for three-phase electrical systems
• 600V AC rated
• Thermal-magnetic protection for overload and short-circuit conditions
• Unit mount design for compatible FH equipment
• Load lug connections with bolted line connection
• HACR rated for heating, air conditioning, and refrigeration applications
• Matches compatible existing equipment when properly selected
• Useful for electrical maintenance and replacement projects
• Built to last in commercial and industrial environments
  

Technical Specifications

• Catalog Number: FHP36045
  
• Manufacturer: Square D
  
• Product Type: Circuit Breaker
  
• Series: FH
  
• Trip Unit Technology: Thermal-Magnetic
  
• Amperage Rating: 45 Amps
  
• Voltage Rating: 600V AC
  
• Number of Poles: 3
  
• Phase Connection: ABC
  
• Breaking Capacity Code: H
  
• Mounting Style: Unit Mount
  
• Electrical Connections: Load Lugs; Bolted Line Connection
  
• Terminal Identifier: AL100FA
  
• Magnetic Hold Current: 400 Amps
  
• Magnetic Tripping Current: 850 Amps
  
• Application Rating: HACR Rated
  
• Dimensions: 6.40 in. H × 4.50 in. W × 4.13 in. D
  

Material Compliance and Certifications

The Square D FHP36045 is UL Listed and CSA Certified for use in compatible electrical equipment. It is intended for replacement and maintenance applications and should be installed according to the National Electrical Code (NEC), applicable local electrical requirements, and proper electrical safety procedures. Installation and servicing should always be performed by qualified electrical personnel.

Where It Works Best

• Compatible Square D FH electrical equipment
• Commercial electrical distribution systems
• Industrial facilities
• Manufacturing environments
• HVAC systems
• Heating and refrigeration equipment
• Three-phase motor circuits
• Pumps and compressors
• Industrial machinery
• Branch circuit protection
• Electrical maintenance projects
• Replacement of existing FH series breakers