EHB3040 - 40Amp Circuit Breaker

EHB3040 - 40Amp Circuit Breaker

Maintaining an existing electrical system starts with selecting a replacement breaker that matches the original equipment specifications. The EHB3040 is a 3-pole, 40-amp Type EHB thermal-magnetic circuit breaker designed as a form, fit, and functional replacement for compatible panelboards manufactured before 1989. When replacing an existing breaker in compatible equipment, matching the correct type, amperage, interrupting rating, dimensions, and terminal configuration helps preserve the original design and operation of the electrical distribution system.

Whether you're replacing a failed breaker during routine maintenance or servicing older commercial or industrial electrical equipment, the EHB3040 provides the form, fit, and functionality required for compatible legacy systems. It is commonly used in manufacturing facilities, warehouses, office buildings, educational institutions, healthcare facilities, and other applications where pre-1989 panelboards remain in service.

Key Features and Benefits

• Designed as a form, fit, and functional replacement for compatible Type EHB circuit breakers
• 40 Amp current rating for branch circuit protection
• Three-pole configuration 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 load terminals
• Intended for compatible panelboards manufactured before 1989
• Built to last for continued service in legacy electrical distribution systems
  

Technical Specifications

• Part Number: EHB3040
  
• Type: EHB
  
• Poles: 3
  
• Amperage: 40 Amps
  
• Trip Unit: Thermal-Magnetic, Non-Interchangeable
  
• Interrupting Rating: 14kA @ 480VAC
  
• Temperature Rating: 40°C
  
• 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.
• 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 in accordance with applicable electrical codes and manufacturer requirements.
• Always confirm compatibility with the original equipment manufacturer's specifications before placing the breaker into service.
  

Where It Works Best

The EHB3040 is intended for maintaining compatible legacy electrical distribution systems installed in manufacturing facilities, warehouses, office buildings, schools, healthcare facilities, and other commercial or industrial environments. It is specifically designed for pre-1989 panelboards that require a Type EHB 3-pole, 40-amp thermal-magnetic circuit breaker with a 14 kA interrupting rating at 480 VAC.