FAP36045 - 45 Amp Circuit Breaker

FAP36045 - 45 Amp Circuit Breaker

When you need a circuit breaker that delivers strong protection for demanding commercial or industrial electrical systems, the FAP36045 is engineered to get the job done. Rated for up to 600 V and 45 A with three-pole configuration, this thermal-magnetic breaker offers dependable performance in panelboards, motor control centres, and other heavy service environments. Built by Schneider Electric (under the Square D brand) it combines proven trip-unit technology with high interrupting capacity to keep your system safe from overloads and short circuits—while also giving you installation flexibility and long-term reliability.

Key Features and Benefits

• Thermal-magnetic trip unit: Combines two modes of protection: thermal for overloads, magnetic for short-circuit events—so your system has layered defence.
• High interrupting capacity: Approximately 18 kA at 480 V means the breaker can clear fault currents without damage or nuisance trips.
• Three-pole design: Handles three-phase loads seamlessly, making it ideal for commercial HVAC, motors, and distributions systems.
• Compact yet rugged construction: Supports lugs or bolt-on connections (depending on panel style) and simplifies install and maintenance.
• Familiar brand heritage: You’re working with a respected supplier whose parts and support are widely recognised in the industry.

Technical Specifications

• Trip Unit Technology: Thermal-Magnetic
• Line Rated Current: 45 A
• Number of Poles: 3 (three-phase)
• Rated Voltage: 600 V (AC)
• AIC / Interrupting Rating: approximately 18 kA at 480 V AC
• Mounting Mode: Bolt-On or compatible with I-Line style panelboards
• Frame Size: F-frame (typical for this model)
• Dimensions:
  • Height: 6.4 in (162.6 mm)
  • Width: 4.5 in (114.3 mm)
  • Depth: 4.13 in (104.9 mm)

Material Compliance and Certifications

• This unit meets recognized safety and performance standards: it is UL Listed and CSA certified for use in North American electrical systems.
• It also aligns with applicable RoHS/REACH guidelines for hazardous substance control and environmental compliance—ensuring you’re meeting both operational and regulatory demands.

Where It Works Best

• Perfect for protecting three-phase commercial motor loads such as HVAC systems, refrigeration, fans, pumps and compressors.
• Ideal for industrial branch circuits or distribution panels where 45 A service is required and high-fault conditions might exist.
• Suitable for retrofit or new-install environments where reliability, recognized brand performance and safety clearances matter.
• Especially beneficial in panelboards or switchgear where a trusted breaker with known characteristics enhances system design and maintenance confidence.