THED136125 **Older Style** - 125 Amp Circuit Breaker

THED136125 **Older Style** - 125 Amp Circuit Breaker

The THED136125 Black Face Circuit Breaker is a 125-amp, three-pole industrial molded-case circuit breaker for your compatible commercial and industrial electrical distribution systems. With a non-interchangeable thermal-magnetic trip unit, this THED-series breaker provides thermal overload and magnetic short-circuit protection for circuits that require its specific ratings and configuration. It features a black-face design and includes load-side lugs, making the terminal arrangement an important consideration when replacing an existing breaker. With interrupting capacities of 18kA at 600VAC, 25kA at 480VAC, and 65kA at 240VAC, the THED136125 offers clear electrical characteristics to evaluate compatibility with an existing installation.

Key Features and Benefits

• 125-Amp Current Rating
• Three-Pole Configuration
• Thermal-Magnetic Protection
• Non-Interchangeable Trip Unit
• Specified AC Interrupting Capacities
• Load-Side Lugs Included
• Molded-Case Construction
• THED Series Configuration
• Form, Fit, and Functional Replacement

Technical Specifications

• Catalog Number: THED136125
  
• Product Type: Molded Case Circuit Breaker
  
• Product Category: Industrial Circuit Breaker
  
• Series / Type: THED
  
• Face Color: Black
  
• Rated Current: 125 Amperes (125A)
  
• Number of Poles: 3
  
• Trip Unit Type: Non-Interchangeable Thermal-Magnetic
  
• Overload Protection: Thermal
  
• Short-Circuit Protection: Magnetic
  
• Interrupting Capacity at 600VAC: 18,000 Amperes (18kA)
  
• Interrupting Capacity at 480VAC: 25,000 Amperes (25kA)
  
• Interrupting Capacity at 240VAC: 65,000 Amperes (65kA)
  
• Highest Specified AC Voltage: 600VAC
  
• Load-Side Lugs: Included
  
• Line-Side Lugs: Not specified as included
  
• Height: 6.31 Inches
  
• Width: 4.13 Inches
  
• Depth: 3.38 Inches
  
• Overall Dimensions: 4.13"W × 6.31" H × 3.38"D
  
• Approximate Shipping Weight: 6.50 lbs.
  
• UPC: 00783164134995
  

Material Compliance and Certifications

The THED136125 Black Face Industrial Circuit Breaker features molded-case construction and a non-interchangeable thermal-magnetic trip unit. While its supplied specifications establish key electrical and physical characteristics, they do not identify every material, certification, or regulatory compliance detail.

For applications with specific approval requirements, verify the individual breaker's markings and applicable manufacturer documentation before installation.

Where It Works Best

• Existing Commercial Electrical Systems
• Industrial Power Distribution
• Three-Phase Electrical Applications
• Industrial Machinery and Equipment
• Facility Maintenance and Electrical Repairs
• Legacy Electrical Distribution Systems
• Matching THED Circuit Breaker Replacements
• Compatible 125-Amp Electrical Circuits
• Commercial and Industrial Equipment Restoration
• Electrical Assemblies Requiring Black-Face Breakers
• Applications with Defined Fault-Current Requirements
• Load-Side Lug Connection Applications