ED42B020 - 20Amp Circuit Breaker

ED42B020 - 20Amp Circuit Breaker

Looking for a dependable replacement breaker that fits your existing Siemens electrical system? The Siemens ED42B020 is a 20 Amp, 2-pole molded case circuit breaker designed for commercial and industrial applications where maintaining equipment compatibility is essential. As part of the Siemens ED frame family, it provides a direct form, fit, and functional replacement for compatible installations, helping simplify maintenance without requiring modifications to your existing panel or distribution equipment.

The breaker comes equipped with load-side lug terminals (SA1E025) that accept 14–10 AWG copper or 12–10 AWG aluminum conductors, providing secure field wiring connections for a variety of commercial and industrial applications. Built to last and manufactured to meet recognized industry standards, the Siemens ED42B020 is a dependable choice for maintaining existing electrical distribution systems.

Key Features and Benefits

• 20 Amp, 2-pole Siemens ED frame molded case circuit breaker
• Thermal magnetic trip unit for overload and short-circuit protection
• Rated for 480V AC applications
• 18kA interrupting capacity (18kAIC) at 480V AC
• Includes load-side lug terminals (SA1E025)
• Accepts 14–10 AWG copper or 12–10 AWG aluminum conductors
• Designed for use with compatible Siemens ED-frame equipment
• Helps maintain existing panel configurations during replacement
• Suitable for commercial and industrial electrical systems
• Built to last for dependable, long-term service
  

Technical Specifications

• Catalog Number: ED42B020
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: ED
  
• Trip Unit: Thermal Magnetic
  
• Amperage Rating: 20 Amps
  
• Voltage Rating: 480V AC
  
• Poles: 2
  
• Interrupt Rating: 18 kAIC at 480V AC
  
• Load Terminal: Lug (SA1E025)
  
• Load Wire Range: 14–10 AWG Copper / 12–10 AWG Aluminum
  
• Operating Temperature Reference: Standard 40°C Breaker
  
• Dimensions: 2.00 in. W × 6.35 in. H × 3.92 in. D
  
• Weight: 2.599 lb
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• The Siemens ED42B020 meets UL 489 and IEC 60947-2 standards for molded case circuit breakers. It is also RoHS compliant (since July 1, 2006) and is subject to WEEE (2012/19/EU) take-back obligations where applicable.
• Installation should be performed by qualified electrical personnel in accordance with the National Electrical Code (NEC) and all applicable local electrical codes.
  

Where It Works Best

• Siemens ED-frame panelboards and distribution equipment
• Commercial electrical distribution systems
• Industrial power distribution panels
• 480V AC branch circuit protection
• Replacement of existing Siemens ED-frame circuit breakers
• Manufacturing facilities and commercial buildings
• Applications requiring a 20 Amp, 2-pole molded case circuit breaker
• Installations where maintaining original equipment compatibility is important