FS340125B - 125Amp Circuit Breaker

FS340125B - 125Amp Circuit Breaker

The FS340125B is a 125-amp, 3-pole Type FS thermal-magnetic circuit breaker with a non-interchangeable trip unit and a 40°C rating. For replacement work, the important details are easy to compare: it carries an A.I.C. rating of 14 kA at 480VAC and 22 kA at 240VAC, measures 4.13 inches wide by 6.00 inches high by 3.38 inches deep, and includes load terminals. Those specifications make the FS340125B easy to evaluate when you're maintaining existing or legacy electrical equipment that requires this breaker configuration.

Key Features and Benefits

• 125A rating for equipment requiring a 125-amp circuit breaker
• 3-pole configuration for applications specified for three-pole protection
• Thermal-magnetic circuit breaker design
• Non-interchangeable trip unit for matching applications that require this trip configuration
• 40°C rated
• Load terminals included
• Type FS configuration for compatibility with equipment calling for this breaker type
• Clearly defined electrical and physical specifications help with accurate replacement identification

Technical Specifications

• Part Number: FS340125B
  
• UPC: 00788210008848
  
• Type: FS
  
• Product Type: Thermal-Magnetic Circuit Breaker
  
• Amperage: 125 A
  
• Poles: 3
  
• A.I.C. Rating at 480VAC: 14 kA
  
• A.I.C. Rating at 240VAC: 22 kA
  
• Trip Unit: Non-Interchangeable
  
• Temperature Rating: 40°C
  
• Load Terminals: Included
  
• Height: 6.00 in
  
• Width: 4.13 in
  
• Depth: 3.38 in
  
• Dimensions: 4.13"W x 6.00"H x 3.38"D
  
• Approximate Ship Weight: 6.00 lbs.
  

Material Compliance and Certifications

No specific material-compliance standards or certification listings were provided in the supplied specifications for the FS340125B.

Where It Works Best

The FS340125B is for existing or legacy electrical equipment requiring a 125A, 3-pole Type FS thermal-magnetic circuit breaker with a non-interchangeable trip unit and 40°C rating. Its defined 4.13"W x 6.00"H x 3.38"D footprint is especially important when evaluating form and fit in an existing installation.

Pay attention to system voltage when checking interrupting capacity. This breaker is rated at 14 kA at 480VAC and 22 kA at 240VAC, so always evaluate the A.I.C. rating and voltage together. Before using the FS340125B as a functional replacement, compare its 125A rating, three poles, Type FS configuration, thermal-magnetic operation, non-interchangeable trip unit, 40°C rating, load terminals, interrupting ratings, and physical dimensions with the existing equipment requirements.