ED43B050L - 50Amp Circuit Breaker

ED43B050L - 50Amp Circuit Breaker

The Siemens ED43B050L is a 50 Amp, 3-pole molded case circuit breaker designed as a form, fit, and functional replacement for compatible Siemens ED frame electrical distribution systems. Built for 480V AC three-phase applications, this breaker features a dependable thermal magnetic trip unit that helps protect electrical equipment from overloads and short circuits. With an 18kA interrupting capacity (18kAIC) at 480V AC, it is well suited for commercial and industrial installations where maintaining the original equipment specifications is essential. The ED43B050L is equipped with factory-installed line and load side lugs (LN1E100), accommodating 10 AWG to 1/0 AWG copper or aluminum conductors to simplify installation in compatible systems.

Key Features and Benefits

• Siemens Sentron ED frame molded case circuit breaker
• 50 Amp continuous current rating
• Three-pole configuration for three-phase electrical systems
• Thermal magnetic trip unit provides overload and short-circuit protection
• Rated for 480V AC applications
• 18kA interrupting capacity (18kAIC) at 480V AC
• Factory-installed line and load side lugs (LN1E100)
• Accepts 10 AWG to 1/0 AWG copper or aluminum conductors
• Standard 40°C (104°F) ambient temperature rating
• Built to last for long-term service in compatible electrical systems
• Designed to maintain the original form, fit, and function of compatible Siemens ED frame installations
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: ED43B050L
  
• Manufacturer Part Number (MFN): ED43B050L
  
• Product Type: Molded Case Circuit Breaker
  
• Series: Sentron ED Frame (ED4)
  
• Trip Unit: Thermal Magnetic
  
• Current Rating: 50 Amps
  
• Voltage Rating: 480V AC
  
• Poles: 3
  
• Interrupting Capacity: 18kAIC @ 480V AC
  
• Terminal Type: Line and Load Side Lugs (LN1E100)
  
• Wire Range: 10 AWG to 1/0 AWG Copper/Aluminum
  
• Ambient Temperature Rating: Standard 40°C (104°F)
  
• Dimensions:
  • Width: 3.00 inches
  • Length: 6.35 inches
  • Depth: 3.92 inches
• Net Weight: 3.849 lbs.
  
• Country of Origin: Mexico

Material Compliance and Certifications

The Siemens ED43B050L is manufactured to meet UL 489 and IEC 60947-2 standards for molded case circuit breakers, helping ensure compliance with widely recognized electrical safety and performance requirements. The breaker is RoHS compliant (since October 10, 2008) and supports WEEE (2012/19/EU) take-back obligations where applicable. Installation should always be performed by qualified personnel in accordance with the National Electrical Code (NEC), the manufacturer's instructions, and all applicable local electrical codes to help ensure safe operation and proper system compatibility.

Where It Works Best

• Commercial buildings
• Industrial facilities
• Manufacturing plants
• Electrical distribution panels
• Switchboards
• Motor control equipment
• OEM machinery
• Facility maintenance and repair projects
• Existing Siemens ED frame systems requiring a 50 Amp, 3-pole thermal magnetic circuit breaker
• Applications where preserving the original form, fit, and function of the installed electrical equipment is essential