EE3B040 - 40Amp Circuit Breaker

EE3B040 - 40 Amp Circuit Breaker

The EE3B040 molded case circuit breaker is a 3-pole, 40 amp solution designed for dependable circuit protection in commercial and industrial electrical systems operating at up to 240VAC. Built on the EE3 frame platform, this breaker is engineered for consistent form, fit, and function in existing panelboards and distribution equipment. With a 10kA interrupting rating, it helps protect circuits from overloads and short circuits while maintaining compatibility with legacy installations that require this exact configuration.

Rated for operation at 40°C, the EE3B040 is well-suited for standard ambient conditions found in most electrical rooms and enclosures. Its molded case construction supports long-term use, giving maintenance teams and facility managers confidence when replacing or matching existing breakers. If you’re maintaining an established system and need a direct replacement that aligns with original specifications, this unit delivers exactly that—no guesswork, no modification required.

Key Features and Benefits

• 40 Amp Rating: Designed for controlled current protection in branch and feeder circuits
• 3-Pole Configuration: Ideal for three-phase electrical systems
• 10kA Interrupting Capacity @ 240VAC: Handles fault conditions within specified limits
• EE3 Frame Compatibility: Matches existing equipment requiring EE3 frame breakers
• Molded Case Design: Built to last with consistent mechanical operation
• 40°C Rated Performance: Suitable for standard operating environments
• Form, Fit, Function Replacement: Helps maintain system integrity without alterations

Technical Specifications

• Part Number: EE3B040
  
• Amperes: 40A
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity: 10kA @ 240VAC
  
• Frame Type: EE3
  
• Breaker Type: Molded Case Circuit Breaker
  
• Temperature Rating: 40°C
  
• Approximate Shipping Weight: 4.5 lbs
  
• Dimensions (Height): 6.0 inches
  

Material Compliance and Certifications

• This molded case circuit breaker is manufactured using industry-standard materials commonly accepted for electrical distribution equipment. It is intended for use in systems that require compliance with applicable electrical codes and standards. Always confirm installation meets local and national electrical regulations.

Where It Works Best

• The EE3B040 is a practical choice for maintaining and servicing existing electrical systems that require an EE3 frame breaker. It’s commonly used in:
• Commercial buildings with legacy panelboards
• Industrial facilities with established distribution systems
• Maintenance and repair applications requiring exact breaker replacement
• Electrical systems operating at 240VAC with moderate fault current levels