HED41B045 - 45Amp Circuit Breaker

HED41B045 - 45Amp Circuit Breaker

The Siemens HED41B045 is a 45-amp, one-pole thermal magnetic circuit breaker for Siemens SENTRON low-voltage molded case circuit breaker systems using the ED frame style. This breaker is typically used when you're servicing an existing electrical installation and a matching replacement is needed. For these projects, the important details are making sure the frame, amperage, voltage, and lug configuration match what is already installed.

Key Features and Benefits

• 45 Amp single-pole Siemens ED frame circuit breaker
• Thermal magnetic protection for overload and short-circuit conditions
• 277V circuit breaker rating
• Siemens SENTRON molded case circuit breaker design
• Load lugs only terminal configuration
• Accepts #10–4 AWG copper and aluminum conductors
• Meets UL 489 and IEC 60947-2 standards

Technical Specifications

• Catalog Number: HED41B045
  
• Product Type: Molded case circuit breaker
  
• Frame Type: ED Frame
  
• Amperage Rating: 45 Amps
  
• Voltage Rating: 277V
  
• Poles: 1
  
• Trip Unit: Thermal magnetic
  
• Interrupt Rating: 25kAIC at 277V
  
• Mounting Style: Panelboard mount
  
• Terminal Configuration: Load lugs only
  
• Wire Range: #10–4 AWG CU/AL
  
• Dimensions: 1 in W x 6.35 in H x 3.92 in D
  
• Weight: 1.25 lb
  
• UPC: 783643209879
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The Siemens HED41B045 is designed to meet UL 489 and IEC 60947-2 standards for molded case circuit breakers.

Where It Works Best

• Siemens low voltage panelboards using ED frame breakers
• 277V single-phase electrical applications
• Commercial and industrial electrical distribution equipment
• Replacement of compatible Siemens HED series breakers
• Electrical repair and maintenance projects
• Applications requiring thermal magnetic circuit protection
• Systems using #10–4 AWG copper or aluminum conductors
• Projects where keeping the original breaker setup is important