FD62T250 - 250Amp Trip Unit

FD62T250 - 250Amp Trip Unit

The Siemens FD62T250 is a 250 Amp thermal-magnetic trip unit for compatible FD-frame molded case circuit breakers. This trip unit is the protective component inside the breaker assembly that responds to overload and short-circuit conditions. When you're servicing an existing breaker, having the correct FD frame and amp rating helps maintain the original breaker setup.

The FD62T250 combines thermal overload protection and magnetic short-circuit protection in a single trip unit. It is rated for 600 VAC and is used with breaker configurations rated for 22 kAIC at 600V and 35 kAIC at 480V.

Designed for FD-frame applications, the Siemens FD62T250 supports breaker configurations with line- and load-side lug connections and accommodates larger conductors, including 6 AWG to 350 kcmil copper wire and 4 AWG to 350 kcmil aluminum wire.

Key Features and Benefits

• Siemens FD-frame thermal-magnetic trip unit
• Catalog Number: FD62T250
• 250 Amp rating
• Two-pole configuration
• Provides overload and short-circuit protection
• Rated for 600 VAC
• Designed for compatible FD-frame molded case circuit breakers
• Meets UL 489 and IEC 60947-2 standards
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: FD62T250
  
• Product Type: Thermal-Magnetic Trip Unit
  
• Frame Compatibility: FD
  
• Amperage Rating: 250 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
• Terminal Configuration: Line and Load Side Lug Applications
  
• 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 1.131 lbs
  
• UPC: 783643211643
  

Material Compliance and Certifications

The Siemens FD62T250 is designed to meet UL 489 and IEC 60947-2 standards for molded case circuit breaker applications. Before installation, confirm that the trip unit matches the FD-frame breaker, amp rating, voltage rating, and required breaker configuration.

Where It Works Best

The Siemens FD62T250 is commonly used in commercial buildings, industrial facilities, and electrical distribution equipment that uses compatible FD-frame molded case circuit breakers.