ED63B050 - 50Amp Circuit Breaker

ED63B050 - 50Amp Circuit Breaker

When dependable circuit protection is essential, the Siemens ED63B050 delivers the ratings and compatibility needed to keep commercial and industrial electrical systems operating as intended. This 50-Amp, 3-pole molded-case circuit breaker is part of the trusted Siemens SENTRON ED Frame family and is designed for applications requiring protection for systems rated up to 600 VAC. Whether you're replacing an existing breaker during scheduled maintenance or restoring equipment to its original configuration, the ED63B050 is designed to provide the proper form, fit, and function for compatible Siemens installations.

Equipped with a thermal-magnetic trip unit, the ED63B050 responds to both prolonged overloads and instantaneous short circuits, helping safeguard electrical equipment and distribution systems from damage. It features an interrupting capacity of 18 kAIC at 600 VAC and 25 kAIC at 480 VAC, making it well-suited for a wide range of commercial and industrial power distribution applications. Factory-installed load lugs (LN1E100) accept 10 AWG to 1/0 AWG copper or aluminum conductors, helping streamline installation in compatible equipment.

Key Features and Benefits

• Siemens SENTRON ED Frame molded case circuit breaker
• 50 Amp continuous current rating
• 3-pole configuration for three-phase electrical systems
• Thermal-magnetic trip unit provides overload and short-circuit protection
• Rated for applications up to 600VAC
• 18kAIC interrupting capacity at 600VAC
• 25kAIC interrupting capacity at 480VAC
• Includes factory-installed load lugs (LN1E100)
• Accepts 10 AWG to 1/0 AWG copper or aluminum conductors
• Standard 40°C rated breaker
• Designed as a form, fit, and functional replacement for compatible Siemens ED Frame installations
• Helps maintain the original design and operation of existing electrical distribution equipment
• Built to last for demanding commercial and industrial environments
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: ED63B050
  
• Product Family: SENTRON ED6, 18kAIC, 600VAC
  
• Product Type: Molded Case Circuit Breaker
  
• Current Rating: 50 Amps
  
• Poles: 3
  
• Voltage Rating: 600VAC
  
• Trip Unit: Thermal-Magnetic
  
• Frame Rating: ED Frame
  
• Standard Operating Temperature: 40°C
  
• Interrupting Rating:
  • 18kAIC @ 600VAC
  • 25kAIC @ 480VAC
• Terminal Type: Load Lugs Only (LN1E100)
  
• Wire Range: 10 AWG–1/0 AWG Copper/Aluminum
  
• Dimensions:
  • Width: 3.00 inches
  • Length: 6.35 inches
  • Depth: 3.92 inches
• Net Weight: 3.719 lb.
  
• Country of Origin: Mexico
  
• UPC: 783643209732
  

Material Compliance and Certifications

The Siemens ED63B050 is manufactured to meet recognized industry standards for safety, environmental compliance, and compatibility. These certifications help ensure the breaker is suitable for use in compatible commercial and industrial electrical systems.

• UL 489 Listed
• IEC 60947-2 Compliant
• RoHS Compliant (since October 10, 2008)
• REACH Article 33 Compliant
• WEEE Directive (2012/19/EU) Compliant
• Export Classification: EAR99
  

Where It Works Best

• The Siemens ED63B050 is a great fit for commercial buildings, manufacturing facilities, industrial plants, schools, healthcare facilities, and municipal infrastructure where compatible Siemens ED Frame circuit breakers are already installed. It's commonly used in panelboards, switchboards, motor control centers, OEM equipment, and power distribution panels that require a 50 Amp, 3-pole, 600VAC molded case circuit breaker.
• If you're maintaining an existing electrical system, this breaker is designed to match the original form, fit, and function of compatible Siemens ED Frame installations. That means you can restore your equipment with confidence while maintaining the system's intended electrical ratings and protection.