HED42B045L - 45Amp Circuit Breaker

HED42B045L - 45Amp Circuit Breaker

The Siemens HED42B045L is a 45 Amp, two-pole thermal magnetic circuit breaker used in Siemens SENTRON low voltage molded case circuit breaker systems with an ED frame. It is typically selected when your existing breaker needs to be replaced with the same style and electrical ratings. For service work, the goal is usually straightforward: find a breaker that matches the equipment already installed, including the frame type, amp rating, voltage, poles, and lug configuration.

Key Features and Benefits

• 45 Amp two-pole Siemens ED frame circuit breaker
• Thermal magnetic protection for overloads and short circuits
• 480V circuit breaker rating
• Line and load side lug connections
• Supports #10–1/0 AWG copper conductors
• Supports #10–1/0 AWG aluminum conductors
• Siemens SENTRON molded case breaker design
• Meets UL 489 and IEC 60947-2 standards
• Standard 40°C breaker frame rating

Technical Specifications

• Catalog Number: HED42B045L
  
• Product Type: Molded case circuit breaker
  
• Frame Type: ED Frame
  
• Amperage Rating: 45 Amps
  
• Voltage Rating: 480V
  
• Poles: 2
  
• Trip Unit: Thermal magnetic
  
• Interrupt Rating: 42kAIC at 480V
  
• Terminal Configuration: Line and load side lugs
  
• Wire Range: #10–1/0 AWG CU/AL
  
• Mounting Style: Panelboard mount
  
• Dimensions: 2 in W x 6.35 in H x 3.92 in D
  
• Weight: 2.712 lb
  
• UPC: 783643090194
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The Siemens HED42B045L is designed to meet UL 489 and IEC 60947-2 standards for molded case circuit breakers.

Where It Works Best

• Siemens ED frame electrical distribution equipment
• 480V two-pole circuit applications
• Commercial and industrial electrical systems
• Electrical maintenance and repair projects
• Compatible Siemens HED series breaker replacements