EHB34040 - 40 Amp Circuit Breaker

EHB34040 - 40 Amp Circuit Breaker

If you’re maintaining or restoring an existing electrical system, the EHB34040 circuit breaker gives you a precise, form-and-fit solution designed for compatibility with EHB-4 frame equipment. This 3-pole, 40-amp bolt-on breaker is built to handle demanding commercial and industrial applications where dependable circuit protection is required. With interrupting ratings of 14k AIC at 480VAC and 65k AIC at 240VAC, it’s suited for systems where fault current levels must be properly managed without compromising fit within established panel configurations. Its bolt-on mounting style ensures a secure connection within compatible panelboards, helping maintain system integrity over time. Whether you're replacing an existing unit or servicing legacy infrastructure, this breaker is designed to integrate seamlessly—no guesswork, no modification. Built with durability in mind, it reflects the kind of construction you expect in equipment that stays in service for years.

Key Features and Benefits

• Exact Fit for EHB-4 Frame Systems – Designed for straightforward replacement in compatible panels
• 3-Pole Configuration – Ideal for three-phase electrical distribution
• 40 Amp Rating – Supports controlled load management in commercial and industrial setups
• Bolt-On Mounting – Provides a stable, secure installation
• Strong Interrupting Capacity – Rated for 14k AIC @ 480VAC and 65k AIC @ 240VAC
• Built to Last – Solid construction intended for long-term use in demanding environments

Technical Specifications

• Part Number: EHB34040
  
• Poles: 3
  
• Amperage: 40A
  
• Voltage Rating: Up to 480VAC
  
• Interrupting Capacity:
  • 14k AIC @ 480VAC
  • 65k AIC @ 240VAC
• Frame Type: EHB-4
  
• Mounting Type: Bolt-On
  
• Shipping Weight: 3.0 lbs
  
• Dimensions (Height): 3.5 inches
  

Material Compliance and Certifications

• Manufactured to meet applicable industry standards for molded case circuit breakers
• Designed for use in systems requiring compliance with recognized electrical safety codes
• Suitable for installation in properly rated panelboards and enclosures

Where It Works Best

• Commercial buildings with existing EHB-4 panel systems
• Industrial facilities maintaining legacy electrical infrastructure
• Equipment rooms requiring dependable three-phase circuit protection
• Retrofit and maintenance projects where exact compatibility is essential