HED42B020 - 20Amp Circuit Breaker

HED42B020 - 20Amp Circuit Breaker

The Siemens HED42B020 is a 20 Amp, two-pole thermal magnetic circuit breaker used in Siemens SENTRON low voltage molded case circuit breaker systems with the ED frame design. This breaker is typically selected when your existing installation needs a matching replacement that keeps the original equipment configuration in place. For service and maintenance work, the details matter — the breaker frame, pole count, amp rating, voltage rating, and lug arrangement all need to line up with the existing system.

Key Features and Benefits

• 20 Amp two-pole Siemens ED frame circuit breaker
• Thermal magnetic trip protection for overload and short-circuit conditions
• 480V circuit breaker rating
• Siemens SENTRON molded case circuit breaker design
• Load lugs only terminal configuration
• Accepts #14–10 AWG copper conductors
• Accepts #12–10 AWG aluminum conductors
• Meets UL 489 and IEC 60947-2 standards

Technical Specifications

• Catalog Number: HED42B020
  
• Product Type: Molded case circuit breaker
  
• Frame Type: ED Frame
  
• Amperage Rating: 20 Amps
  
• Voltage Rating: 480V
  
• Poles: 2
  
• Trip Unit: Thermal magnetic
  
• Interrupt Rating: 42kAIC at 480V
  
• Mounting Style: Panelboard mount
  
• Terminal Configuration: Load lugs only
  
• Wire Range: #14–10 AWG CU / #12–10 AWG AL
  
• Dimensions: 2 in W x 6.35 in H x 3.92 in D
  
• Weight: 0.258 lb
  
• UPC: 783643209954
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The Siemens HED42B020 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 circuit breakers
• 480V two-pole electrical applications
• Commercial and industrial electrical distribution equipment
• Compatible Siemens HED series breaker replacements
• Electrical repair and maintenance projects