EH1B040 - 40Amp Circuit Breaker

EH1B040 - 40Amp Circuit Breaker

Keeping an existing electrical system operating safely begins with choosing a breaker that matches the original equipment specifications. The EH1B040 is a 1-pole, 40-amp molded-case circuit breaker designed as a form, fit, and function replacement for compatible Type EH1 applications. Rated for operation at 40°C, this breaker helps protect branch circuits from overcurrent conditions while maintaining compatibility with the electrical system it was designed to serve. Whether you're performing routine maintenance or replacing a damaged breaker, using the correct ampere rating, interrupting capacity, and breaker type helps preserve the integrity of your existing installation.

With a 14 kA interrupting capacity at 277 VAC, the EH1B040 is intended for use in compatible commercial, industrial, and institutional electrical distribution systems that require these electrical ratings. Its molded-case construction is designed for dependable operation in demanding environments, while its compact footprint allows it to fit alongside compatible equipment without modifying the existing system.

Key Features and Benefits

• Part Number: EH1B040
• 40-amp current rating for compatible branch circuit protection
• Single-pole configuration for single-phase electrical applications
• Molded case circuit breaker rated for 40°C operation
• Helps protect against overload and overcurrent conditions
• 14kA interrupting capacity at 277VAC
• Designed as a form, fit, and functional replacement for compatible Type EH1 installations
• Built to last for dependable service in properly maintained electrical systems
  

Technical Specifications

• Part Number: EH1B040
  
• Type: EH1
  
• Breaker Style: Molded Case Circuit Breaker
  
• Temperature Rating: 40°C
  
• Poles: 1
  
• Amperes: 40A
  
• Voltage Rating: 277VAC
  
• Interrupting Capacity (A.I.C.): 14kA @ 277VAC
  
• Dimensions:
  • Width: 1.50 in.
  • Height: 6.00 in.
  • Depth: 3.63 in.
• Approximate Shipping Weight: 3.00 lbs.
  

Material Compliance and Certifications

• Manufactured for use in compatible electrical distribution equipment.
• Designed to meet applicable industry standards for its intended application.
• Installation should be performed in accordance with the National Electrical Code (NEC), local electrical codes, and the original equipment manufacturer's recommendations.
• Always verify breaker type, amperage, voltage rating, interrupting capacity, operating temperature, and equipment compatibility before installation.
  

Where It Works Best

The EH1B040 is well suited for maintaining compatible commercial, industrial, and institutional electrical systems that require a 1-pole, 40-amp Type EH1 molded case circuit breaker rated for 40°C operation. It is commonly used to protect branch circuits serving HVAC equipment, lighting systems, control panels, machinery, and other electrical loads operating within its rated capacity.