E41B050 - 50Amp Circuit Breaker

E41B050 - 50 Amp Circuit Breaker

The E41B050 molded case circuit breaker is designed for dependable circuit protection in panelboards and distribution systems that require a 50-amp, single-pole breaker with a bolt-on mounting configuration. Built on the E41 frame, this breaker is engineered for proper form, fit, and functional replacement in compatible legacy electrical systems. It provides overcurrent protection for branch circuits operating up to 277VAC, with interrupting capacities of 22kA at 277VAC and 25kA at 120VAC, helping protect wiring and connected equipment from overloads and short circuits. The unit is HACR rated, making it suitable for heating, air conditioning, and refrigeration applications where applicable. Designed for use in environments up to 40°C, the breaker includes load-side terminals for straightforward installation in supported panel configurations. Molded case construction provides long-lasting mechanical integrity, supporting consistent operation over the life of the installation.

Key Features and Benefits

• 50 Amp Single-Pole Protection – Designed for branch circuit protection in compatible electrical distribution systems.
• Bolt-On Mounting Design – Secures directly to the panelboard bus for stable electrical connection.
• E41 Frame Compatibility – Provides correct form and fit for systems designed for E41 frame breakers.
• HACR Rated – Suitable for heating, air conditioning, and refrigeration equipment circuits where applicable.
• High Interrupting Capacity – Rated 22kA at 277VAC and 25kA at 120VAC for handling fault conditions within its rating.
• Molded Case Construction – Built to last with a protective housing designed for electrical distribution environments.
• Includes Load-Side Terminals – Terminals included to simplify wiring connections during installation.

Technical Specifications

• Part Number: E41B050
  
• Amperage Rating: 50 Amps
  
• Number of Poles: 1
  
• Frame Type: E41
  
• Mounting Type: Bolt-On
  
• Interrupting Rating:
  • 22kA @ 277VAC
  • 25kA @ 120VAC
• Operating Temperature Rating: 40°C
  
• HACR Rating: Yes
  
• Breaker Type: Molded Case Circuit Breaker
  
• Included Accessories: Load-side terminals
  
• Approximate Shipping Weight: 1.0 lb
  
• Approximate Shipping Height: 6.35 in
  

Material Compliance and Certifications

• HACR Rated for use with heating, air conditioning, and refrigeration equipment circuits where permitted.
• Manufactured to align with industry electrical safety and performance standards applicable to molded case circuit breakers.
• Designed for installation in systems that meet applicable NEC (National Electrical Code) requirements when used within its rated specifications.

Where It Works Best

• The E41B050 circuit breaker is commonly used in commercial, industrial, and institutional electrical distribution systems that utilize E41 frame bolt-on breakers. Its 50-amp rating makes it suitable for branch circuits serving HVAC equipment, lighting panels, and general power distribution within compatible panelboards. It is particularly useful when maintaining or servicing existing electrical infrastructure that requires an exact-fit replacement breaker with the same electrical ratings and mounting style.