FD62B125L - 125Amp Circuit Breaker

FD62B125L - 125Amp Circuit Breaker

Replacing a circuit breaker is usually straightforward when the replacement matches the original equipment. The amp rating is one of the first things to check, but it is not the only one. Voltage rating, number of poles, interrupting capacity, trip type, and lug configuration all need to line up with the electrical system already in place.

The Siemens FD62B125L is a 125 Amp, two-pole molded case circuit breaker designed for your compatible FD-frame electrical distribution equipment. It features a thermal-magnetic trip unit that provides overload and short-circuit protection while following the requirements of the original installation. Rated for 600 VAC, this breaker provides a 22 kAIC interrupting rating at 600V and 35 kAIC at 480V.

Key Features and Benefits

• Siemens FD-frame molded case circuit breaker
• Catalog Number: FD62B125L
• 125 Amp current rating
• Two-pole configuration
• Thermal-magnetic trip unit for overload and short-circuit protection
• Rated for 600 VAC
• Standard 40°C breaker rating
• Includes assembled line and load side lugs
• Meets UL 489 and IEC 60947-2 standards
• Designed for compatible FD-frame electrical distribution equipment
• Built to last in commercial and industrial environments
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: FD62B125L
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: FD
  
• Amperage Rating: 125 Amps
  
• Number of Poles: 2
  
• Trip Type: Thermal-Magnetic
  
• Voltage Rating: 600 VAC
  
• Interrupting Rating:
  • 22 kAIC at 600 VAC
  • 35 kAIC at 480 VAC
• Temperature Rating: 40°C
  
• Terminals: Assembled Line and Load Side Lugs
  
• Wire Range:
  • Copper: 6 AWG – 350 kcmil
  • Aluminum: 4 AWG – 350 kcmil
• Dimensions: 4.5 in. W × 9.5 in. H × 4 in. D
  
• Weight: Approximately 8.62 lbs
  
• UPC: 783643005181
  

Material Compliance and Certifications

The Siemens FD62B125L is designed to meet UL 489 and IEC 60947-2 standards for molded case circuit breakers. Before installation, confirm the breaker matches the equipment requirements, including frame type, voltage rating, pole count, interrupting capacity, trip characteristics, and lug configuration.

Where It Works Best

The FD62B125L is commonly used in commercial buildings, industrial facilities, manufacturing plants, and electrical distribution equipment requiring compatible FD-frame circuit protection.