ED23B040L - 40Amp Circuit Breaker

ED23B040L - 40Amp Circuit Breaker

When you’re working on maintaining or restoring an electrical distribution system, consistency matters. The Siemens ED23B040L molded case circuit breaker is designed to drop into compatible Siemens ED-frame setups as a reliable form, fit, and function replacement. Instead of reworking panels or second-guessing compatibility, this breaker helps you keep things aligned with the original system design while maintaining proper circuit protection.

This unit is a 40-amp, 3-pole breaker built for 240VAC applications, using a thermal-magnetic trip unit that responds to both overload conditions and short-circuit faults. In practical terms, it helps protect downstream equipment by reacting when electrical conditions move outside safe operating ranges. With a 10 kAIC interrupting rating at 240VAC, it is suited for systems that require defined fault protection levels within industrial, commercial, or institutional environments.

Key Features & Benefits

• Designed as a direct replacement for compatible Siemens ED-frame systems
• 40A, 3-pole configuration for multi-phase circuit protection
• Thermal-magnetic trip unit responds to overloads and short circuits
• Rated for 240VAC operation
• 10 kAIC interrupting capacity at 240VAC
• Includes line and load-side lugs (LN1E100) for flexible termination
• Supports copper or aluminum conductors (10 AWG–1/0 AWG)
• Ideal for maintenance and restoration of existing Siemens systems
• Designed for dependable service in properly maintained installations

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: ED23B040L
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: ED Frame (Sentron Series)
  
• Amperage: 40 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Rating: 10 kAIC at 240VAC
  
• Trip Unit: Thermal-Magnetic
  
• Terminal Type: Line & Load Side Lugs (LN1E100)
  
• Wire Range: 10 AWG – 1/0 AWG (Cu/Al)
  
• Operating Temperature: 40°C ambient rating
  
• Dimensions: 3 in W × 6.35 in H × 3.92 in D
  
• Weight: 3.505 lb
  

Material Compliance & Certifications

• This breaker is manufactured to meet established industry safety and performance standards, including:
• UL 489 listed
• IEC 60947-2 compliant
• RoHS and REACH compliance information available per manufacturer data
• WEEE (2012/19/EU) take-back obligations applicable
• Export classification: EAR99
• These certifications help ensure the breaker aligns with recognized electrical safety requirements for approved installations.
  

Where It Works Best

The Siemens ED23B040L is typically used in existing Siemens ED-frame electrical systems, especially where equipment continuity is important. You’ll often find it in commercial buildings, industrial facilities, and institutional power distribution setups where panels are already designed around this breaker style. It fits best in situations where you’re not redesigning the system—you’re simply replacing like-for-like components to keep operations running smoothly. If your goal is to maintain compatibility, meet the original electrical design, and support safe ongoing performance, this breaker is built for exactly that kind of job.