E42B050L - 50Amp Circuit Breaker

E42B050L - 50Amp Circuit Breaker

When you need a compatible 50 amp, 2-pole circuit breaker for an existing electrical distribution system, the E42B050L molded case circuit breaker delivers the form, fit, and function required for a dependable replacement. Designed as a Type E42 breaker, this unit helps protect electrical circuits from overcurrent conditions while meeting the specifications needed for many commercial and industrial applications.

The E42B050L features a compact molded case design and comes complete with both line-side and load-side terminals, making it easier to integrate into compatible equipment. Rated for 25kA at 240VAC and 18kA at 480VAC, it is suited for installations where proper interrupting capacity is essential. The breaker is also HACR rated, making it suitable for qualifying HVAC and refrigeration equipment. Built to last and designed for long-term service, the E42B050L is a practical choice for maintaining existing electrical systems without altering original equipment configurations.

Whether you're replacing a failed breaker during routine maintenance or sourcing a matching unit for an ongoing facility project, this 50 amp Type E42 circuit breaker provides the ratings and compatibility needed to keep electrical systems operating as intended.

Key Features and Benefits

• 50 amp current rating for branch and feeder circuit protection
• 2-pole design for applications requiring protection across two conductors
• Type E42 molded case circuit breaker
• Includes line-side and load-side terminals
• HACR rated for qualifying HVAC and refrigeration equipment
• Interrupting capacity rated at 25kA @ 240VAC and 18kA @ 480VAC
• Compact footprint helps fit compatible panel and distribution equipment
• Designed for form, fit, and functional replacement in existing systems
• Built to last for demanding commercial and industrial environments
• Suitable for maintenance, repair, and replacement projects
• Rated for operation in ambient temperatures up to 40°C (104°F)

Technical Specifications

• Part Number: E42B050L
  
• Type: E42
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Amperage: 50 Amps
  
• Poles: 2
  
• A.I.C. Rating: 25kA @ 240VAC; 18kA @ 480VAC
  
• Temperature Rating: 40°C (104°F)
  
• HACR Rated: Yes
  
• Included Terminals: Line-Side and Load-Side
  
• Width: 2.0 in.
  
• Height: 6.35 in.
  
• Depth: 3.92 in.
  
• Dimensions: 2.0"W x 6.35"H x 3.92"D
  
• Approximate Ship Weight: 4.31 lbs.
  

Material Compliance and Certifications

• HACR rated for qualifying heating, ventilation, air conditioning, and refrigeration applications
• Molded case circuit breaker construction
• Rated for operation in ambient temperatures up to 40°C (104°F)
• Designed for use within its published electrical ratings
• Intended for installation in accordance with applicable electrical codes and manufacturer requirements

Where It Works Best

The E42B050L is commonly found in commercial facilities, industrial plants, manufacturing operations, HVAC systems, refrigeration equipment, and electrical distribution systems that require a 50 amp, 2-pole Type E42 circuit breaker. It is particularly useful when maintaining existing equipment where matching breaker type, amperage, pole configuration, and interrupting ratings is important.

Facility managers, electricians, maintenance professionals, and contractors often rely on breakers like the E42B050L to support repairs, preventative maintenance programs, and equipment servicing while preserving compatibility with existing electrical infrastructure.