FA34040 **Old Style** 40 Amp Circuit Breaker

FA34040 **Old Style** 40 Amp Circuit Breaker

Protect your electrical infrastructure with the FA34040 40 Amp circuit breaker—designed for commercial and industrial environments where reliable over-current protection is critical. With its compact I-Line profile, this breaker fits seamlessly into many standard panels and upgrade projects. Built with high-grade materials and engineered for lasting performance, the FA34040 gives you peace of mind that your system is safeguarded without compromise.

Key Features and Benefits

• Thermal-magnetic trip unit: combines the speed of magnetic actuation for high-fault currents with the stable thermal element for overloads, giving precise protection under a wide range of conditions.
• Straightforward installation: the I-Line mounting system and lug-type load connections make setup fast and minimize labor time, whether you’re retrofitting or installing new equipment.
• Durable build: engineered to hold up in demanding electrical environments, this breaker stays in service longer and requires less maintenance than generic alternatives.
• High breaking capacity: when fault currents strike, this device handles them confidently—giving your system the headroom it needs.
  

Technical Specifications

• Current Rating: 40 A
  
• Number of Poles: 3 P
  
• Interrupting Capacity (AIC):
  • 14 kA at 480 VAC
  • 18 kA at 240 VAC
• Trip Unit Technology: Thermal-magnetic
  
• Magnetic Hold Current: 400 A
  
• Magnetic Trip Current: 850 A
  
• Mounting Mode: I-Line
  
• Electrical Connection: Load via lugs
  
• 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

• Certifications: The FA34040 is UL Listed and CSA certified, meeting industry safety and performance benchmarks.
• Environmental Standards: It also aligns with RoHS and REACH environmental standards, underscoring its suitability for modern installations with sustainability in mind.
• Green Premium Label: With the manufacturer’s Green Premium label, the product delivers transparency on environmental impact and supports low-CO₂ ambitions.
  

Where It Works Best

• This circuit breaker is especially well-suited for commercial and industrial electrical panels—whether you’re doing a major upgrade or maintaining an existing system. Its 40 A rating and 3-pole configuration make it ideal for three-phase loads, while the high breaking capacity ensures it can handle fault-heavy scenarios often found in manufacturing, HVAC systems, or large-scale distribution panels. If you’re seeking a dependable, long-lasting protective device that integrates easily with I-Line systems, the FA34040 is a strong choice.