HED43B090L - 90Amp Circuit Breaker

HED43B090L - 90Amp Circuit Breaker

When you need a replacement breaker that matches the original specifications, the Siemens HED43B090L is designed for the job. This 90 Amp, 3-pole molded case circuit breaker is part of Siemens' ED-frame family and is intended for low-voltage commercial and industrial electrical systems. It uses a thermal-magnetic trip unit to help protect equipment from overloads and short circuits while providing an interrupting rating of 42kAIC at 480 VAC.

Key Features and Benefits

• 90 Amp current rating
• Three-pole design for three-phase applications
• Rated for use on systems up to 480 VAC
• Thermal-magnetic trip unit for overload and short-circuit protection
• Siemens ED-frame molded case circuit breaker
• Factory-installed line and load lugs (LN1E100)
• Accepts 10 AWG to 1/0 AWG copper or aluminum wire
• Compact footprint for compatible Siemens panelboards and distribution equipment
• Built to last in demanding commercial and industrial environments
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HED43B090L
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: ED
  
• Amperage: 90 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 480 VAC
  
• Interrupting Rating: 42kAIC @ 480 VAC
  
• Trip Unit: Thermal-Magnetic
  
• Terminal Type: Line and Load Side Lugs (LN1E100)
  
• Wire Range: 10 AWG–1/0 AWG Copper or Aluminum
  
• Dimensions: 3.00 in. W × 6.35 in. H × 3.92 in. D
  
• Weight: 3.616 lbs
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 Listed
• IEC 60947-2 compliant
• Export Classification: EAR99
• REACH information available
• RoHS status available from the manufacturer
  

Where It Works Best

The Siemens HED43B090L is commonly used in commercial buildings, industrial facilities, manufacturing plants, and other low-voltage power distribution systems that require a compatible Siemens ED-frame breaker. It is well suited for protecting feeders, branch circuits, motor loads, and distribution equipment where a 90-amp, 3-pole, 480V circuit breaker with a 42kAIC interrupting rating is specified.