FH16040B - 40 Amp Circuit Breaker

FH16040B - 40 Amp Circuit Breaker

This high-quality 1-pole 40 Amp circuit breaker from Schneider Electric—model FH16040B—is your dependable choice for protecting electrical systems in commercial, industrial and residential installations. Engineered with a thermal-magnetic trip mechanism, it handles both overload and short-circuit conditions with precision. Designed for easy I-Line plug-in panelboard mounting, it simplifies installation while providing a safety-first solution. With a 277 V rating, 18 kA (or higher) fault-interruption capability and certifications from UL and CSA, this breaker meets modern protection standards and ensures peace of mind in demanding power-distribution applications.

Key Features and Benefits

• Thermal-magnetic trip unit: Combines reliable overload (thermal) protection and fast short-circuit (magnetic) interruption to safeguard your equipment.
• High fault-interruption capacity: Built to handle significant fault current events and maintain system stability under heavy stress.
• I-Line mounting with lug load-side connections: Streamlines installation into panelboards, reducing downtime and wiring complexity.
• Compatible with a broad range of electrical systems: A flexible choice for upgrades, retrofits or new installations across commercial, industrial and residential settings.
• Green Premium® environmental design: Constructed under Schneider Electric’s “use better, use longer” initiative—minimizing waste and supporting sustainable operation.

Technical Specifications

• Rated current: 40 A
• Number of poles: 1 P
• Voltage rating: 277 V AC
• Breaker frame & breaking capacity: Code H – 18 kA (or higher, depending on system voltage)
• Magnetic hold current: 400 A; Magnetic trip current: 850 A
• Mounting mode: I-Line plug-in style
• Physical dimensions:
  • Height: 6.4 in (162.6 mm)
  • Width: 1.5 in (38.1 mm)
  • Depth: 4.13 in (104.9 mm)
• Connection method: Line-side I-Line plug-in; load-side lug connections (AL100FA terminal identifier)

Material Compliance and Certifications

• Certifications: This circuit breaker is UL Listed and CSA certified, meeting rigorous North American safety standards.
• Environmental Label: It carries the “Green Premium®” label from Schneider, reflecting its design for low environmental impact, compliance with RoHS/REACH, and a transparent Product Environmental Profile.

Where It Works Best

• Whether you're outfitting a commercial panelboard, upgrading an industrial motor control center or configuring a residential branch-circuit distribution board, the FH16040B delivers the performance and protection you need. Its compact 1-pole design suits tight spaces, while its high interrupt rating ensures system resilience under fault conditions. When reliability matters and installation time is at a premium, this breaker is a trusted choice.