SCJD69300G - 300Amp Circuit Breaker

SCJD69300G - 300Amp Circuit Breaker

The Siemens SCJD69300G circuit breaker is a 300-amp, 3-pole molded-case breaker for your compatible commercial and industrial electrical distribution systems. As part of the Siemens SENTRON line, this SJD breaker features JD-frame construction, a SensiTrip electronic trip unit (ETU), and LIG protection for long-time, instantaneous, and ground-fault protection. Rated for applications up to 600V AC, with an interrupting capacity of 100kA at 600V AC, the SCJD69300G provides a specific combination of electrical ratings and protective functions for existing installations.

Key Features and Benefits

• 300-Amp Current Rating: Provides a defined 300A current rating for electrical distribution applications designed to accommodate this Siemens breaker.
• Three-Pole Configuration: Designed for compatible three-pole electrical systems requiring the SCJD69300G's frame construction and protection characteristics.
• Siemens SJD/JD Frame Design: Uses a specific molded-case frame configuration that helps electricians identify the right replacement for existing equipment.
• SensiTrip Electronic Trip Unit: Incorporates Siemens electronic trip technology to provide the specified overcurrent and ground-fault protection functions.
• LIG Protection Functions: Includes long-time, instantaneous, and ground-fault protection. The LIG designation is important when matching the breaker to an existing electrical system's protective requirements.
• Line and Load Side Lugs Included: Equipped with TA2J6500 lugs on both ends of the breaker for the manufacturer's specified conductor sizes.
• Standard 40°C Temperature Rating: Provides a defined temperature reference for evaluating the breaker in its intended electrical installation.

Technical Specifications

• Manufacturer: Siemens
  
• Product Line: SENTRON
  
• Catalog Number: SCJD69300G
  
• Manufacturer Part Number (MFN): SCJD69300G
  
• Manufacturer Article Number: US2
  
• Product Type: Molded Case Circuit Breaker (MCCB)
  
• Breaker Designation: SJD
  
• Frame Type: JD
  
• Number of Poles: 3
  
• Current Rating: 300 Amps
  
• Maximum Voltage Rating: 600V AC
  
• Interrupting Capacity at 600V AC: 100kA (100,000 Amps)
  
• Interrupting Capacity at 480V AC: 150kA (150,000 Amps)
  
• Trip Unit Type: Electronic Trip Unit (ETU)
  
• Trip System: Siemens SensiTrip
  
• Protection Functions: LIG – Long-Time, Instantaneous, and Ground-Fault
  
• Long-Time Protection: Included
  
• Instantaneous Protection: Included
  
• Ground-Fault Protection: Included
  
• Short-Time Delay Protection: Not indicated in the specified LIG configuration
  
• Breaking-Capacity Design: Current-Limiting
  
• Standard Temperature Rating: 40°C
  
• Line-Side Lugs: TA2J6500
  
• Load-Side Lugs: TA2J6500
  
• Copper Conductor Range: 3/0 AWG–500 kcmil
  
• Aluminum Conductor Range: 4/0 AWG–500 kcmil
  
• Width: 7.50 inches
  
• Height: 17.86 inches
  
• Depth: 4.00 inches
  
• Net Weight: 34.00 lb
  
• Applicable Standards: UL 489 / IEC 60947-2
  
• UPC: 783643217171
  
• Country of Origin: Mexico
  
• Siemens Catalog ID: LV10.1
  
• Siemens Product Group: 3741
  
• Siemens Group Code: P360
  
• Commodity Code: 8536200020
  

Material Compliance and Certifications

Manufacturer-reported compliance information includes:

• UL 489: Siemens identifies the SCJD69300G as meeting this standard for molded case circuit breakers.
• IEC 60947-2: Manufacturer-reported compliance with the applicable international circuit breaker standard.
• RoHS Substance Restrictions: Siemens reports compliance with applicable substance restrictions since March 30, 2009.
• REACH Article 33: Siemens references the applicable duty-to-inform requirements. Confirm current substance information using manufacturer documentation.

Where It Works Best

• Existing Siemens SCJD69300G Circuit Breaker Replacements
  
• Compatible Siemens SENTRON Electrical Distribution Systems
  
• 300-Amp Three-Pole Circuit Protection
  
• 600V AC Systems Requiring 100kA Interrupting Capacity
  
• 480V AC Systems Requiring 150kA Interrupting Capacity
  
• Electrical Systems Requiring LIG Electronic Trip Protection
  
• Applications Requiring Ground-Fault Protection
  
• Compatible Commercial Electrical Distribution Equipment
  
• Compatible Industrial Switchboards and Distribution Assemblies