ED41B040 - 40Amp Circuit Breaker

ED41B040 - 40Amp Circuit Breaker

Looking for a dependable 40 Amp circuit breaker that fits your existing Siemens electrical system? The Siemens ED41B040 is a 40 Amp, 1-pole molded case circuit breaker designed to provide reliable overcurrent protection for commercial and industrial electrical distribution systems operating at 277VAC. As part of the trusted Siemens SENTRON ED Frame family, this breaker is engineered as a form, fit, and functional replacement for compatible Siemens ED Frame installations, helping simplify maintenance while preserving the original system design.

Equipped with a thermal-magnetic trip unit, the ED41B040 responds to both sustained overloads and instantaneous short circuits to help protect electrical equipment and branch circuits.

Key Features and Benefits

• 40 Amp, 1-pole molded case circuit breaker for dependable overcurrent protection
• Designed as a form, fit, and functional replacement for compatible Siemens ED Frame breakers
• Thermal-magnetic trip unit helps protect against overloads and short circuits
• Rated for 277VAC commercial and industrial electrical systems
• 22 kAIC interrupting capacity at 277VAC
• Equipped with load-side lugs only
• Load wire range: 10–4 AWG copper or aluminum
• Standard ED Frame construction for compatibility with existing Siemens equipment
• Built to last for dependable service in properly maintained electrical systems
• Meets UL 489 and IEC 60947-2 standards
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: ED41B040
  
• Product Family: SENTRON ED Frame Molded Case Circuit Breaker
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: ED Frame
  
• Amperage Rating: 40 Amps
  
• Number of Poles: 1
  
• Voltage Rating: 277VAC
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Capacity: 22 kAIC at 277VAC
  
• Terminal Configuration: Load Lugs Only
  
• Load Wire Range: 10–4 AWG Copper or Aluminum
  
• Dimensions:
  • Width: 1.00 in.
  • Height: 6.35 in.
  • Depth: 3.92 in.
• Weight: 0.851 lb
  
• UPC: 783643209138
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The Siemens ED41B040 is manufactured to meet UL 489 and IEC 60947-2 standards for molded case circuit breakers. It also complies with WEEE (2012/19/EU) take-back obligations and has been compliant with the RoHS Directive since March 31, 2009. For proper operation, replacement breakers should match the original equipment's frame type, amperage rating, voltage rating, interrupting capacity, pole configuration, and terminal arrangement. Installation should always be performed by qualified electrical professionals in accordance with the National Electrical Code (NEC) and applicable local electrical codes.

Where It Works Best

• Commercial lighting circuits
• Branch circuit protection
• Office buildings
• Retail facilities
• Educational institutions
• Healthcare facilities
• Industrial distribution systems
• Manufacturing plants
• Maintenance and repair of compatible Siemens ED Frame equipment
• Installations requiring load-side lug connections