EH34040 - 40 Amp Circuit Breaker

EH34040 - 40 Amp Circuit Breaker

If you're replacing a breaker in an existing Type EH-4 panelboard, the EH34040 is designed to match the original installation. This 3-pole, 40 Amp plug-on thermal-magnetic circuit breaker is intended as a form, fit, and functional replacement for compatible electrical distribution systems, making it a practical option when maintaining or repairing legacy equipment.

The thermal-magnetic trip mechanism helps protect electrical circuits by responding to both overload conditions and short circuits. Rated for 14kA at 480VAC and 65kA at 240VAC, the EH34040 is intended for systems requiring those interrupting capacities.

Key Features and Benefits

• Part Number: EH34040
• 3-pole thermal-magnetic circuit breaker
• 40 Amp current rating
• Type EH-4 configuration
• Plug-on mounting design for compatible panelboards
• Thermal-magnetic trip mechanism helps protect against overloads and short circuits
• Designed as a form, fit, and functional replacement for compatible legacy electrical systems
• Helps maintain the original electrical design of existing equipment
• Built to last for dependable service in properly maintained electrical systems
  

Technical Specifications

• Part Number: EH34040
  
• Type: EH-4
  
• Additional Notes: Plug-On Thermal-Magnetic Circuit Breaker
  
• Poles: 3
  
• Amperage: 40 Amps
  
• Interrupting Capacity (A.I.C.):
  • 14kA @ 480VAC
  • 65kA @ 240VAC
• Dimensions:
  • Width: 3.00 in.
  • Height: 3.50 in.
  • Depth: 2.63 in.
• Approximate Shipping Weight: 3.00 lbs.
  

Material Compliance and Certifications

• The EH34040 is a molded case thermal-magnetic circuit breaker intended for installation in compatible electrical distribution equipment. Installation should always follow the National Electrical Code (NEC), local electrical codes, and the equipment manufacturer's recommendations.
• Before replacing a breaker, verify the part number, breaker type, amperage, voltage rating, interrupting capacity, mounting style, pole configuration, and physical dimensions. Confirming these details helps ensure the replacement is compatible with the existing electrical system.
  

Where It Works Best

The EH34040 is commonly used in commercial, industrial, and institutional electrical systems that utilize compatible Type EH-4 panelboards. 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, and other distribution loads that match its electrical ratings.