ED43B090L - 90Amp Circuit Breaker

ED43B090L - 90Amp Circuit Breaker

When you need a 90 Amp, 3-pole molded case circuit breaker that matches the specifications of an existing electrical system, the Siemens ED43B090L offers the ratings and compatibility required for many commercial and industrial applications. Designed as part of the trusted Siemens Sentron ED frame family, this breaker provides dependable protection against overloads and short circuits with its thermal-magnetic trip unit, helping safeguard electrical distribution equipment while keeping systems operating as intended.

Whether you're replacing a worn breaker during scheduled maintenance or restoring an existing installation, this breaker is built to last and is designed to provide the form, fit, and functional replacement needed to keep compatible Siemens equipment operating safely and efficiently.

Key Features and Benefits

• Siemens Sentron ED frame molded case circuit breaker
• 90 Amp continuous current rating
• Three-pole configuration for three-phase electrical systems
• Thermal-magnetic trip unit protects against overloads and short circuits
• Rated for use on 480V AC systems
• 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
• Compact ED frame design for compatible Siemens equipment
• Built to last for demanding commercial and industrial environments
• Designed as a form, fit, and functional replacement for compatible Siemens ED frame installations
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: ED43B090L
  
• Product Type: Molded Case Circuit Breaker
  
• Series: Sentron ED Frame (ED4)
  
• Current Rating: 90 Amps
  
• Voltage Rating: 480V AC
  
• Number of Poles: 3
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Rating: 18kAIC @ 480V AC
  
• Terminal Type: Factory-Installed Line & Load Lugs (LN1E100)
  
• Wire Range: 10 AWG–1/0 AWG Copper or Aluminum
  
• Ambient Temperature Rating: 40°C (104°F)
  
• Dimensions:
  • Width: 3.00 inches
  • Length: 6.35 inches
  • Depth: 3.92 inches
• Net Weight: 3.84 lbs.
  
• Country of Origin: Mexico
  
• UPC: 783643236226

Material Compliance and Certifications

The Siemens ED43B090L is manufactured to meet UL 489 and IEC 60947-2 standards for molded case circuit breakers, helping ensure compliance with recognized safety and performance requirements. It is RoHS compliant and supports WEEE (2012/19/EU) environmental obligations where applicable. As with all electrical protection devices, installation should be completed by qualified personnel and in accordance with the National Electrical Code (NEC), manufacturer instructions, and applicable local regulations.

Where It Works Best

• Commercial buildings
• Manufacturing facilities
• Industrial plants
• Electrical distribution panels
• Switchboards
• Motor control centers (MCCs)
• OEM machinery
• Equipment maintenance and repair projects
• Compatible Siemens Sentron ED frame installations