SEH3C40 - 40 Amp Circuit Breaker

SEH3C40 - 40 Amp Circuit Breaker

Engineered for industrial and commercial installations, the SEH3C40 Circuit Breaker delivers dependable overload and short‑circuit protection in a compact, easy-to-install package. This 3‑pole, 40 amp breaker gives you high interrupting capacity—18 kA at 240 VAC and 14 kA at 480 VAC—making it a solid solution for a wide range of electrical systems. Whether you're upgrading control panels or maintaining critical infrastructure, this breaker brings performance and flexibility you can count on.

Key Features and Benefits

• High‑performance protection: The 40 amp rating and thermal‑magnetic trip build guard against overloads and short‑circuit faults.
• Space-saving footprint: Slim dimensions (4.13″ W × 6.31″ L × 3.38″ D) let you fit it into dense or existing panel setups.
• Reliable SEH frame design: Built to last in demanding environments, offering consistent service life.
• Multi-voltage flexibility: Rated for both 240 VAC (18 kA A.I.C.) and 480 VAC (14 kA A.I.C.), ideal for diverse applications.
• Thermal‑magnetic mechanism: Ensures accurate protection even at ambient temperatures up to 40 °C.

Technical Specifications

• Poles: 3
  
• Rated Current: 40 A
  
• Interrupting Capacity (A.I.C.):
  • 18 kA at 240 VAC
  • 14 kA at 480 VAC
• Frame Type: SEH
  
• Dimensions:
  • Width: 4.13 inches
  • Length: 6.31 inches
  • Depth: 3.38 inches
• Weight: 6.50 lbs
  

Material Compliance and Certifications

• Industry Standards: The SEH3C40 is crafted from high-grade materials and meets rigorous safety and performance standards. It’s designed to comply with industry electrical certifications, offering reliability and peace of mind in professional electrical installations.

Suitability

• This breaker is a top choice for electricians and facility engineers looking for solid 3‑pole protection in industrial, commercial, and panel upgrade settings. It fits well in tight control‑panel spaces, supports dual‑voltage systems, and stands up to continuous heavy‑duty use. When dependable circuit protection matters, the SEH3C40 delivers efficiency, versatility, and safety.