EH3B040 - 40Amp Circuit Breaker

EH3B040 - 40Amp Circuit Breaker

When you need a Type EH3 circuit breaker that matches your existing electrical system, the EH3B040 provides the form, fit, and functional replacement you're looking for. This 3-pole, 40 Amp molded case circuit breaker is designed to help protect electrical circuits from overloads and short circuits while maintaining compatibility with equipment originally designed for an EH3 breaker. Whether you're replacing a failed breaker during scheduled maintenance or keeping an existing distribution system operating as intended, selecting a breaker that matches the original electrical and mechanical specifications is essential.

Key Features and Benefits

• Part Number: EH3B040
• 3-pole molded case circuit breaker
• 40 Amp current rating
• Type EH3
• Thermal-magnetic trip mechanism helps protect against overloads and short circuits
• Rated for operation in 40°C ambient environments
• Designed as a form, fit, and functional replacement for compatible electrical equipment
• Helps maintain the original electrical system configuration
• Built to last for dependable service in properly maintained systems
  

Technical Specifications

• Part Number: EH3B040
  
• Type: EH3
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage: 40 Amps
  
• Operating Temperature: 40°C
  
• A.I.C. Rating: 14kA @ 480VAC; 65kA @ 240VAC
  
• Dimensions:
  • Width: 4.50 in.
  • Height: 6.00 in.
  • Depth: 3.63 in.
• Approximate Shipping Weight: 5.00 lbs.
  

Material Compliance and Certifications

• The EH3B040 is a molded case circuit breaker intended for installation in compatible electrical distribution equipment. Installation should always comply with the National Electrical Code (NEC), applicable local electrical codes, and the equipment manufacturer's installation requirements.
• Before installation, verify compatibility by confirming the part number, breaker type, amperage, voltage rating, interrupting capacity, pole configuration, dimensions, and mounting arrangement. Matching these specifications helps ensure proper fit and intended operation within the existing electrical system.
  

Where It Works Best

The EH3B040 is commonly used in commercial, industrial, and institutional facilities where compatible Type EH3 molded case circuit breakers are specified. Its 3-pole, 40 Amp configuration makes it suitable for protecting three-phase branch circuits serving equipment such as HVAC systems, motors, pumps, compressors, lighting panels, manufacturing equipment, and electrical distribution panels, provided the application falls within the breaker's published ratings.