JD63B250L - 250Amp Circuit Breaker

JD63B250L - 250Amp Circuit Breaker

At 250 amps and three poles, the Siemens JD63B250L has specific electrical and physical characteristics for comparison with your existing installation. This SENTRON molded case circuit breaker uses a JD frame with a thermal-magnetic trip unit and carries a standard 40°C rating. The JD63B250L is built to last and meets UL 489 and IEC 60947-2 standards. For replacement work, compatibility should come first: frame, ratings, lugs, wire range, dimensions, and the requirements of the existing equipment must all agree.

Key Features and Benefits

• 250A, 3-pole breaker for equipment that specifically requires this amperage and pole arrangement.
• Part of the Siemens SENTRON molded case circuit breaker line.
• Uses the specified JD frame and thermal-magnetic trip unit.
• Identified by Siemens as a standard 40°C breaker.
• Supplied with TA2J6500 lugs on both line and load sides.
• Lug range accommodates 3/0 AWG–500 kcmil copper and 4/0 AWG–500 kcmil aluminum conductors.
  

Technical Specifications

• Catalog Number / MFN: JD63B250L
  
• Article Number: US2:JD63B250L
  
• Manufacturer: Siemens
  
• Product Line: SENTRON
  
• Product Family: JD6, 25 kAIC, 600VAC
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: JD
  
• Amperage: 250 A
  
• Poles: 3
  
• Voltage: 600VAC
  
• Trip Unit: Thermal-magnetic
  
• Temperature Rating: Standard 40°C
  
• Interrupting Rating at 600V: 25 kAIC
  
• Interrupting Rating at 480V: 35 kAIC
  
• Line-Side Lugs: TA2J6500
  
• Load-Side Lugs: TA2J6500
  
• Copper Wire Range: 3/0 AWG–500 kcmil
  
• Aluminum Wire Range: 4/0 AWG–500 kcmil
  
• Dimensions: 7.5" W x 11" H x 4" D
  
• Net Weight: 19.533 lb
  
• UPC: 783643009141
  
• Country of Origin: Mexico
  
• Standards: UL 489 and IEC 60947-2
  

Material Compliance and Certifications

Siemens states that the JD63B250L meets UL 489 and IEC 60947-2 standards. The supplied environmental information also includes REACH Article 33 information and manufacturer information concerning WEEE (2012/19/EU) take-back obligations.

Where It Works Best

The JD63B250L is a practical choice for maintaining compatible existing or legacy electrical equipment that requires this particular Siemens JD configuration. Rather than relying on amperage alone, check the full set of requirements: 250A, three-pole, JD frame, thermal-magnetic trip unit, 600VAC rating, TA2J6500 lugs, conductor range, and physical size.