ED42B110 - 110Amp Circuit Breaker

ED42B110 - 110Amp Circuit Breaker

Looking for a reliable circuit breaker that keeps your electrical system running safely and efficiently? The Siemens ED42B110 is a 110 Amp, 2-pole molded case circuit breaker built to deliver dependable overcurrent protection in demanding commercial and industrial environments. Whether you're upgrading an existing system or replacing a worn-out unit, this breaker offers the trusted performance Siemens is known for.

Part of the Siemens Sentron ED frame family, the ED42B110 features a thermal magnetic trip unit that reacts quickly to both overloads and short circuits—helping protect your equipment and minimize downtime. With a 480V AC rating and an 18kA interrupting capacity (18kAIC), it’s designed to handle tough electrical conditions with confidence.

Key Features and Benefits

• Trusted Siemens Sentron ED frame molded case circuit breaker
• 110 Amp continuous current rating for consistent performance
• 2-pole design ideal for 480V AC systems
• Thermal magnetic trip unit for fast, reliable protection against overloads and short circuits
• 18kA interrupting capacity (18kAIC) at 480V AC
• Comes factory-equipped with load lugs only (TA1E6125)
• Compatible with 3–3/0 AWG copper or 1–2/0 AWG aluminum wiring
• Designed for standard 40°C operating environments
• Easy replacement option for existing Siemens ED-frame breakers
• Built for durability in commercial and industrial applications
  

Technical Specifications

• Catalog Number: ED42B110
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker
  
• Series / Frame: ED Frame (Sentron)
  
• Trip Unit: Thermal Magnetic
  
• Amperage Rating: 110 Amps
  
• Voltage Rating: 480V AC
  
• Number of Poles: 2
  
• Interrupting Rating: 18kAIC at 480V AC
  
• Terminal Type: Load Lugs Only (TA1E6125)
  
• Wire Range: 3–3/0 AWG Copper / 1–2/0 AWG Aluminum
  
• Reference Operating Temperature: 40°C
  
• Dimensions:
  • Width: 2.00 in.
  • Height: 6.35 in.
  • Depth: 3.92 in.
• Weight: 2.701 lb.
  
• Product Family: ED4 18kAIC, 480VAC
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• The Siemens ED42B110 is built to meet UL 489 and IEC 60947-2 standards, ensuring it performs safely and reliably in real-world applications. It is also RoHS compliant, aligns with WEEE (2012/19/EU) requirements where applicable, and includes REACH Article 33 material transparency information.
• For best results and safety, installation should always be performed by qualified professionals in accordance with the National Electrical Code (NEC) and local regulations.
  

Where It Works Best

• Siemens ED-frame panelboards and compatible systems
• Commercial and industrial electrical distribution setups
• 480V AC branch circuit protection
• Warehouses, manufacturing plants, and commercial buildings
• Maintenance, repair, and system upgrades
• Direct replacement for compatible Siemens ED-frame breakers
• Applications needing a 110 Amp, 2-pole breaker with 18kA interrupting capacity
• Installations using load-side lug connections
• Projects where maintaining system compatibility is essential