EHB3040L - 40Amp Circuit Breaker

EHB3040L - 40Amp Circuit Breaker

Finding the right replacement circuit breaker is about more than matching the amperage. The EHB3040L is a 3-pole, 40-amp Type EHB thermal-magnetic circuit breaker designed to provide the form, fit, and functional compatibility required for electrical systems using compatible pre-1989 panelboards. If you're maintaining an existing commercial or industrial electrical system, selecting a breaker with the correct type, interrupting rating, pole configuration, and terminal arrangement helps keep the equipment operating as originally designed.

Whether you're replacing a failed breaker during maintenance or stocking a critical spare for an older facility, the EHB3040L provides the compatibility needed to keep legacy electrical systems in operation.

Key Features and Benefits

• Designed as a form, fit, and functional replacement for compatible Type EHB circuit breakers
• 40 Amp current rating for dependable branch circuit protection
• Three-pole design for compatible three-phase electrical systems
• Thermal-magnetic trip mechanism helps protect against overloads and short circuits
• Non-interchangeable trip unit maintains the original breaker configuration
• Rated for operation in ambient temperatures up to 40°C
• Includes line and load terminals
• Designed for compatible panelboards manufactured before 1989
• Built to last for continued use in legacy electrical distribution systems
  

Technical Specifications

• Part Number: EHB3040L
  
• Type: EHB
  
• Poles: 3
  
• Amperage: 40 Amps
  
• Trip Unit: Thermal-Magnetic, Non-Interchangeable
  
• Interrupting Rating: 14kA @ 480VAC
  
• Temperature Rating: 40°C
  
• Line Terminals: Included
  
• Load Terminals: Included
  
• Compatible Equipment: Panelboards manufactured before 1989
  
• Dimensions:
  • Width: 4.13 inches
  • Length: 6.00 inches
  • Depth: 3.38 inches
• Approximate Shipping Weight: 5.50 lbs.
  

Material Compliance and Certifications

• Designed for installation in compatible electrical distribution equipment.
• Always verify compatibility by confirming the breaker type, amperage, voltage rating, interrupting capacity, pole configuration, mounting style, and terminal configuration before installation.
• Installation should be performed by qualified electrical personnel and in accordance with applicable electrical codes.
• Confirm compatibility with the original equipment manufacturer's specifications before placing the breaker into service.
  

Where It Works Best

The EHB3040L is commonly used in commercial, industrial, and institutional facilities where legacy electrical distribution equipment remains in service. It is well suited for manufacturing plants, warehouses, office buildings, schools, hospitals, and similar environments that rely on compatible pre-1989 panelboards. When the original equipment specifications call for a Type EHB, 3-pole, 40-amp thermal-magnetic circuit breaker with a 14kA interrupting rating at 480VAC, this breaker provides the form, fit, and functional compatibility needed to maintain the existing electrical system without modifications.