EC3040 - 40Amp Circuit Breaker

EC3040 - 40 Amp Circuit Breaker

The EC3040 circuit breaker is a 3-pole, 40-amp thermal-magnetic molded case circuit breaker designed for use in electrical distribution systems requiring dependable overcurrent protection at 240VAC. Built on the EC frame platform, this breaker provides the form, fit, and function needed when maintaining or replacing components in compatible panelboards and distribution equipment. Its thermal-magnetic trip mechanism with a non-interchangeable trip unit helps protect conductors and equipment from overloads and short circuits by responding to both prolonged overcurrent conditions and instantaneous fault events. Rated for operation at 40°C, the EC3040 is suited for common commercial and industrial electrical environments. Load terminals are included, simplifying installation and ensuring proper connection in supported systems. With construction typical of molded case circuit breakers designed to remain in service for many years, the EC3040 supports the continued operation and maintenance of existing electrical infrastructure.

Key Features and Benefits

• 40 Amp continuous rating suitable for branch and feeder circuit protection
• 3-pole configuration designed for three-phase electrical systems
• Thermal-magnetic trip mechanism responds to both overload and short-circuit conditions
• Non-interchangeable trip unit designed as part of the breaker assembly
• 10kA interrupting capacity at 240VAC for fault current protection within rated systems
• 40°C ambient temperature rating appropriate for typical electrical room environments
• Load terminals included for straightforward conductor termination
• Designed to provide the correct form, fit, and functional replacement within compatible EC frame installations
• Molded case construction typical of breakers built for long service life

Technical Specifications

• Part Number: EC3040
  
• Frame Type: EC
  
• Amperage Rating: 40A
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 240VAC
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Temperature Rating: 40°C
  
• Included Connections: Load terminals included
  
• Approximate Shipping Weight: 4.13 lbs
  
• Shipping Dimensions (Height): 6.0 in.
  

Material Compliance and Certifications

• Industry Standards: The EC3040 circuit breaker is manufactured in accordance with standard molded case circuit breaker design practices used in North American power distribution equipment.
• Standards Alignment: Ratings and construction align with commonly recognized electrical protection standards applicable to molded case breakers used in panelboards and distribution assemblies.
• Installation Guidance: Proper installation and application should always follow applicable electrical codes and equipment manufacturer requirements.
  

Where It Works Best

• Commercial facilities
• Industrial control panels and machinery circuits
• Panelboards and load centers designed for EC frame breakers
• Three-phase branch circuits requiring 40A protection
• Maintenance and replacement needs within existing electrical systems
• It is particularly useful when maintaining legacy electrical equipment that requires the EC frame format, allowing technicians to restore protection without modifying the original panelboard configuration.