EH24040 - 40 Amp Circuit Breaker

EH24040 - 40 Amp Circuit Breaker

When you’re maintaining or restoring an existing electrical system, finding the right breaker isn’t about chasing new features—it’s about getting the right fit and dependable protection. The EH24040 circuit breaker delivers exactly that. Designed for EH-4 frame compatibility, this 2-pole, 40-amp plug-on breaker installs easily into matching panels and gets straight to work protecting your circuits from overloads and short circuits. Its thermal magnetic trip mechanism reacts the way you expect—handling everyday electrical demands while stepping in quickly when faults occur. If you’re working with a legacy setup, this breaker keeps things simple, consistent, and reliable without overcomplicating the job.

Key Features and Benefits

• Exact Form, Fit, and Function: Built for EH-4 frame systems, making replacements straightforward
• 2-Pole Protection: Ideal for multi-phase circuits and balanced loads
• 40 Amp Capacity: Handles common commercial and industrial electrical demands
• Thermal Magnetic Operation: Combines long-time overload protection with instant short-circuit response
• Plug-On Mounting: Quick, secure installation in compatible panelboards
• 14kA Interrupting Rating @ 480VAC: Rated to safely interrupt fault currents within its capacity
• Built to Last: Designed for consistent performance over time in working environments

Technical Specifications

• Part Number: EH24040
  
• Poles: 2
  
• Amperage: 40A
  
• Voltage Rating: 480VAC
  
• Interrupting Capacity: 14kA @ 480VAC
  
• Frame Type: EH-4
  
• Trip Type: Thermal Magnetic
  
• Mounting Style: Plug-On
  
• Height: 3.5 inches
  
• Weight: 2.0 lbs
  

Material Compliance and Certifications

• Industry Standards: Manufactured to meet established electrical safety and performance standards for molded case circuit breakers, the EH24040 is intended for use in systems aligned with NEC (National Electrical Code) requirements. As with any electrical component, proper verification of panel compatibility and adherence to local codes is recommended before installation.

Where It Works Best

• The EH24040 fits right into commercial and industrial panelboards that require EH-4 frame breakers. You’ll commonly see it used in lighting systems, HVAC equipment, motor circuits, and general power distribution. It’s a practical choice for electricians, contractors, and maintenance teams who need a breaker that matches existing equipment and performs its job without unnecessary complications.