HJD63B250L - 250Amp Circuit Breaker

HJD63B250L - 250Amp Circuit Breaker

When you’re replacing a circuit breaker, the details matter more than anything else—frame type, amperage, voltage rating, and how it connects into the existing setup. The Siemens HJD63B250L is a 250 amp, 3-pole molded case circuit breaker built for systems that use the Siemens JD frame. It’s part of the SENTRON line and uses a thermal-magnetic trip unit to handle both overload and short-circuit conditions.

Key Features and Benefits

• 250 amp, 3-pole molded case circuit breaker for compatible electrical distribution systems
• Siemens SENTRON JD frame design for matching existing JD series installations
• Thermal-magnetic trip unit for overload and short-circuit protection
• 600V AC rating for properly specified applications
• Includes line and load side lugs for installation compatibility

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HJD63B250L
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: JD
  
• Poles: 3
  
• Amperage: 250A
  
• Voltage Rating: 600 VAC
  
• Interrupting Capacity: 35kAIC at 600V / 65kAIC at 480V
  
• Trip Unit: Thermal-Magnetic
  
• Standards: UL 489 / IEC 60947-2
  
• Lug Type: TA2J6500 (Line and Load Side)
  
• Copper Wire Range: 3/0 AWG – 500 kcmil
  
• Aluminum Wire Range: 4/0 AWG – 500 kcmil
  
• Dimensions: 7.5 in. W x 11 in. H x 4 in. D
  
• Weight: 19.533 lb
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The Siemens HJD63B250L is part of the SENTRON molded case circuit breaker family and is manufactured to meet widely recognized electrical safety standards used in commercial and industrial environments.

Certifications and standards include:

• UL 489 — Molded Case Circuit Breakers
• IEC 60947-2 — Low-voltage switchgear and controlgear standards

Where It Works Best

The Siemens HJD63B250L is commonly used in commercial and industrial electrical systems that already utilize Siemens JD frame breakers. It’s a practical fit for maintenance work, equipment repairs, and direct replacement situations where keeping the original electrical configuration is required.