EB3040 - 40Amp Circuit Breaker

EB3040 - 40Amp Circuit Breaker

When you're maintaining an existing electrical system, finding the correct replacement breaker can be just as important as the repair itself. The EB3040 Type EB circuit breaker is designed for use in compatible Type EB panelboards manufactured before 1989, making it a practical solution for keeping legacy electrical equipment operating as intended.

For facility managers, maintenance teams, and electrical professionals working with older power distribution systems, preserving compatibility is often the priority. The EB3040 helps simplify that process by offering the proper ratings, dimensions, and configuration needed for existing Type EB panel applications. With load terminals included, a 10kA interrupting rating at 240VAC, and a 40°C operating temperature rating, this breaker is built to last and suited for ongoing maintenance, repair, and replacement projects in commercial and industrial environments.

Whether you're servicing a manufacturing facility, institutional building, office complex, or another property with legacy electrical infrastructure, the EB3040 provides the form, fit, and function needed to help keep your system operating safely and efficiently.

Key Features and Benefits

• Designed for compatible Type EB panelboards manufactured before 1989
• 40 amp rating for branch and feeder circuit protection
• 3-pole configuration for three-phase electrical applications
• Thermal-magnetic protection against overloads and short circuits
• Non-interchangeable trip unit helps maintain original equipment specifications
• Load terminals included for installation convenience
• 10kA interrupting capacity at 240VAC
• Rated for operation in ambient temperatures up to 40°C (104°F)
• Form, fit, and function replacement for compatible legacy systems
• Built to last in demanding commercial and industrial environments

Technical Specifications

• Part Number: EB3040
  
• Type: EB
  
• Amperage: 40 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity: 10kA A.I.C. @ 240VAC
  
• Trip Mechanism: Thermal-Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Temperature Rating: 40°C (104°F)
  
• Terminals: Load Terminals Included
  
• Width: 4.13 in.
  
• Height: 6.0 in.
  
• Depth: 3.38 in.
  
• Dimensions: 4.13"W × 6.0"H × 3.38"D
  
• Approximate Shipping Weight: 5.50 lbs.
  

Material Compliance and Certifications

The EB3040 circuit breaker is intended for installation in equipment designed to accept Type EB breakers. Installation should be performed by qualified electrical personnel and in accordance with applicable electrical codes, equipment labeling, and manufacturer requirements. Always verify compatibility, voltage ratings, interrupting capacity, and conductor requirements before installation.

Where It Works Best

The EB3040 is commonly used in:

• Legacy Type EB panelboards manufactured before 1989
• Commercial office buildings
• Industrial and manufacturing facilities
• Educational and institutional campuses
• Municipal and government properties
• Maintenance and repair projects involving existing electrical infrastructure
• Three-phase power distribution systems
• Applications requiring a matching form, fit, and function replacement

Maintaining older electrical systems often comes down to finding the right components. The EB3040 helps support continued operation of compatible Type EB panelboards by providing the ratings, configuration, and protection characteristics required for dependable replacement applications.