ED41B045L - 45Amp Circuit Breaker

ED41B045L - 45Amp Circuit Breaker

Looking for a reliable circuit breaker that fits seamlessly into your existing setup? The Siemens ED41B045L is a 45 Amp, 1-pole molded case circuit breaker designed to deliver dependable overcurrent protection for commercial and industrial electrical systems operating at 277VAC. Whether you're replacing an existing breaker or upgrading your system, this model is built as a form, fit, and functional replacement for compatible Siemens ED Frame breakers—meaning no costly modifications or downtime.

Equipped with a thermal-magnetic trip unit, the ED41B045L responds quickly to both overloads and short circuits, helping protect your equipment and keep operations running smoothly.

Built to meet industry standards and designed for long-term performance, the Siemens ED41B045L is a smart, dependable choice for maintaining safe and efficient electrical systems.

Key Features and Benefits

• 45 Amp, 1-pole molded case circuit breaker for consistent overcurrent protection
• Designed as a direct replacement for compatible Siemens ED Frame breakers—no modifications needed
• Thermal-magnetic trip unit provides fast response to overloads and short circuits
• Rated for 277VAC, ideal for commercial and industrial applications
• 22 kAIC interrupting capacity ensures reliable performance in demanding conditions
• Comes with line-side and load-side lugs for easy installation
• Line wire range: 10–1/0 AWG copper or aluminum
• Load wire range: 10–4 AWG copper or aluminum
• Standard ED Frame design ensures compatibility with existing Siemens equipment
• Built for durability and long-lasting performance
• Meets UL 489 and IEC 60947-2 standards
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: ED41B045L
  
• Product Family: SENTRON ED Frame Molded Case Circuit Breaker
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: ED Frame
  
• Amperage Rating: 45 Amps
  
• Number of Poles: 1
  
• Voltage Rating: 277VAC
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Capacity: 22 kAIC at 277VAC
  
• Terminal Configuration: Line and Load Lugs
  
• Line Wire Range: 10–1/0 AWG Copper or Aluminum
  
• Load Wire Range: 10–4 AWG Copper or Aluminum
  
• Dimensions:
  • Width: 1.00 in.
  • Height: 6.35 in.
  • Depth: 3.92 in.
• Weight: 1.146 lb
  
• UPC: 783643089907
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The Siemens ED41B045L is manufactured to meet UL 489 and IEC 60947-2 standards, ensuring it performs reliably in demanding environments. It also complies with WEEE (2012/19/EU) take-back requirements. For best results, always match replacement breakers with the original equipment’s specifications, including frame type, amperage, voltage, and interrupting capacity. Installation should be handled by qualified professionals in accordance with the National Electrical Code (NEC) and local regulations.

Where It Works Best

• Commercial lighting systems
• Branch circuit protection
• Office buildings
• Retail spaces
• Schools and universities
• Healthcare facilities
• Industrial distribution systems
• Manufacturing environments
• Maintenance of Siemens ED Frame equipment
• Installations requiring line-side and load-side lug connections