ED43B015L - 15Amp Circuit Breaker

ED43B015L - 15Amp Circuit Breaker

Looking for a circuit breaker that’s dependable, easy to install, and fits right into your existing setup? The Siemens ED43B015L checks all the boxes. This 15 Amp, 3-pole molded case circuit breaker is designed to deliver consistent, reliable overcurrent protection in commercial and industrial environments—without the hassle of redesigning your system.

What really makes the ED43B015L stand out is its thermal magnetic trip unit. It provides two layers of protection: a thermal response for handling sustained overloads and a magnetic response that reacts instantly to short circuits. With a 480V AC rating and an 18kA interrupting capacity (18kAIC), it’s ready to handle demanding branch circuit applications where safety and performance are critical.

Installation is straightforward, thanks to the included line and load side lugs (SA1E025). These lugs support 14–10 AWG copper and 12–10 AWG aluminum conductors, making wiring quick and efficient. Designed to perform reliably in standard 40°C environments, the Siemens ED43B015L helps keep your electrical system operating safely day in and day out.

Key Features and Benefits

• Part of the trusted Siemens Sentron ED frame circuit breaker family
• 15 Amp continuous current rating for reliable performance
• 3-pole design ideal for three-phase electrical systems
• Thermal magnetic trip unit for both overload and short-circuit protection
• Rated for 480V AC applications
• 18kA interrupting capacity (18kAIC) at 480V AC
• Includes line and load side lugs (SA1E025) for easier installation
• Compatible with 14–10 AWG copper and 12–10 AWG aluminum wiring
• Designed for standard 40°C operating conditions
• Form, fit, and functional replacement for Siemens ED-frame breakers
• Built to last in commercial and industrial environments
  

Technical Specifications

• Catalog Number: ED43B015L
  
• Manufacturer: Siemens
  
• Product Type: Molded Case Circuit Breaker
  
• Series / Frame: Sentron ED Frame
  
• Trip Unit: Thermal Magnetic
  
• Amperage Rating: 15 Amps
  
• Voltage Rating: 480V AC
  
• Number of Poles: 3
  
• Interrupting Rating: 18kAIC at 480V AC
  
• Terminal Type: Line and Load Side Lugs (SA1E025)
  
• Wire Range: 14–10 AWG Copper / 12–10 AWG Aluminum
  
• Reference Operating Temperature: 40°C
  
• Dimensions:
  • Width: 3.00 in.
  • Height: 6.35 in.
  • Depth: 3.92 in.
• Weight: 3.743 lb.
  
• Product Family: ED4 18kAIC, 480VAC
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The Siemens ED43B015L meets important industry standards, including UL 489 and IEC 60947-2, so you can trust it to perform in demanding environments. It is also RoHS compliant (since July 1, 2006) and aligns with WEEE (2012/19/EU) environmental guidelines where applicable. Material disclosures are available in accordance with REACH Article 33. For best results and safety, installation should always be completed by qualified professionals following NEC and local electrical codes.

Where It Works Best

• Siemens ED-frame panelboards and switchboards
• Commercial and industrial electrical distribution systems
• 480V AC branch circuit protection
• Warehouses, manufacturing plants, and commercial facilities
• Maintenance and replacement of existing Siemens ED-frame breakers
• Applications requiring a 15 Amp, 3-pole breaker with 18kAIC protection
• Installations that benefit from pre-installed line and load lugs
• Systems where maintaining compatibility with existing equipment is essential