THED124050 - 50 Amp Circuit Breaker

THED124050 - 50 Amp Circuit Breaker

The ABB THED124050 circuit breaker is a 50-amp, two-pole, thermal-magnetic molded-case circuit breaker from ABB's E150 product family. If you're maintaining an existing electrical installation or looking for a matching replacement for legacy equipment, the THED124050 provides clearly defined specifications to help determine compatibility. Its thermal-magnetic trip mechanism combines long-time overload protection with instantaneous short-circuit protection, while the molded-case construction is built to last under its intended operating conditions. ABB also identifies THED breakers as suitable for reverse-feed applications.

Key Features and Benefits

• 50-Amp Current Rating
• Two-Pole Configuration
• 480VAC Voltage Rating
• 25kA Interrupting Capacity
• Thermal-Magnetic Trip Protection
• ABB E150 Frame Design
• Long-Time and Instantaneous Trip Function
• Reverse-Feed Suitability
• 60/75°C Terminal Temperature Category
• Matching Replacement Applications
• Durable Molded-Case Construction

Technical Specifications

• Manufacturer: ABB
  
• Catalog Number: THED124050
  
• UPC: 783164231298
  
• Manufacturer Description: THED 2 POLE 480V 25K IC 50 AMP
  
• Product Type: Molded-Case Circuit Breaker (MCCB)
  
• Product Category: Thermal Magnetic
  
• Series: THED
  
• Product Family: E150
  
• Frame Type: E150
  
• Rated Current: 50 Amperes (50A)
  
• Number of Poles: 2
  
• AC Voltage Rating: 480VAC
  
• Interrupting Capacity: 25kAIC at 480VAC
  
• Trip Function: LI — Long-Time and Instantaneous
  
• Overload Protection: Thermal
  
• Short-Circuit Protection: Magnetic Instantaneous
  
• Reverse-Feed Suitability: Yes, based on ABB's THED-family designation
  
• Terminal Temperature Category: 60/75°C for devices rated through 100A, subject to manufacturer terminal and conductor requirements
  
• GO Schedule: EB
  
• GSA Compliance: No
  

Material Compliance and Certifications

ABB's published product information identifies the following classifications and characteristics for the THED124050:

• GSA Compliance: No
• GO Schedule: EB

The supplied THED124050 product specifications do not identify specific UL, CSA, ANSI, or material-compliance certifications. Confirm required listings, approvals, and conductor compatibility using the applicable manufacturer documentation and markings on the breaker.

Where It Works Best

• Existing Commercial Electrical Systems
• Industrial Electrical Distribution
• Legacy Electrical Equipment
• Matching THED124050 Circuit Breaker Replacements
• Compatible 480VAC Electrical Applications
• Electrical Equipment Using E150 Frame Breakers
• Reverse-Fed Electrical Arrangements
• Facility Maintenance and Repairs
• Electrical Distribution Equipment Restoration