ED42B050L - 50Amp Circuit Breaker

ED42B050L - 50Amp Circuit Breaker

Need a reliable circuit breaker that fits seamlessly into your existing setup? The Siemens ED42B050L is designed to make your job easier. This 50 Amp, 2-pole molded case circuit breaker is built specifically for compatible Siemens ED-frame equipment, making it an ideal choice when you want a straightforward replacement without the hassle of modifications.

Whether you're managing a commercial facility or maintaining an industrial power system, this breaker delivers the dependable performance you expect from Siemens. It’s engineered to match the original form, fit, and function—so you can keep your system running smoothly with confidence.

At the heart of the ED42B050L is a thermal magnetic trip unit, which works behind the scenes to protect your circuits. It responds to both long-term overloads and sudden short circuits, helping prevent damage and downtime. Simply put, it’s built to keep your electrical system safe and operational.

Key Features and Benefits

• 50 Amp, 2-pole Siemens ED frame molded case circuit breaker
• Thermal magnetic trip unit for reliable overload and short circuit protection
• Rated for 480V AC electrical distribution systems
• 18kA interrupting capacity (18kAIC) at 480V AC
• Convenient line and load side lug terminals (LN1E100)
• Accepts 10–1/0 AWG copper or aluminum conductors
• Designed for use with compatible Siemens ED-frame panelboards and distribution equipment
• Easy replacement with matching form, fit, and function
• Helps maintain original equipment configuration
• Built for long-lasting performance in properly matched applications
  

Technical Specifications

• Catalog Number: ED42B050L
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: ED
  
• Trip Unit: Thermal Magnetic
  
• Amperage Rating: 50 Amps
  
• Voltage Rating: 480V AC
  
• Poles: 2
  
• Interrupt Rating: 18 kAIC at 480V AC
  
• Terminal Type: Line and Load Side Lug Terminals (LN1E100)
  
• Wire Range: 10–1/0 AWG Copper / Aluminum
  
• Operating Temperature Reference: Standard 40°C Breaker
  
• Dimensions: 2.00 in. W × 6.35 in. H × 3.92 in. D
  
• Weight: 2.712 lb
  
• Product Family: ED4 18kAIC, 480VAC
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• The Siemens ED42B050L is manufactured to meet UL 489 and IEC 60947-2 standards, ensuring it aligns with recognized safety and performance requirements for molded case circuit breakers. It is also subject to WEEE (2012/19/EU) take-back regulations where applicable, and Siemens provides REACH Article 33 information for material transparency. RoHS compliance details are not specified for this model.
• For best results and safety, always have this breaker installed by a qualified electrician in accordance with the National Electrical Code (NEC) and local regulations.
  

Where It Works Best

• Siemens ED-frame panelboards and distribution equipment
• Commercial electrical systems
• Industrial power distribution environments
• 480V AC branch circuit protection
• Maintenance and repair projects
• Replacement of existing Siemens ED-frame breakers
• Facilities needing a 50 Amp, 2-pole breaker with 18kAIC rating
• Applications where maintaining original system compatibility is essential