SCJD69400 - 400Amp Circuit Breaker

SCJD69400 - 400Amp Circuit Breaker

The Siemens SCJD69400 circuit breaker is a 400-amp, 3-pole molded-case circuit breaker (MCCB) for your compatible commercial and industrial electrical distribution systems. As part of the Siemens SENTRON family, this breaker features an SJD configuration, JD frame, and SensiTrip electronic trip unit (ETU) with long-time and instantaneous (LI) protection. Rated for use in electrical systems up to 600V AC, the SCJD69400 provides an interrupting capacity of 100kA at 600V AC and 150kA at 480V AC.

Key Features and Benefits

• 400-Amp Current Rating: Designed for electrical distribution applications requiring a 400A molded case circuit breaker with the specified Siemens frame and trip configuration.
• Three-Pole Circuit Protection: Provides overcurrent protection across three poles in compatible three-phase electrical distribution systems.
• Siemens SENTRON Construction: Part of the Siemens SENTRON molded case circuit breaker family, with defined electrical ratings and physical specifications.
• SJD Configuration with JD Frame: Features the manufacturer's specified breaker designation and frame type, helping electricians identify the correct replacement for existing equipment.
• SensiTrip Electronic Trip Unit: Incorporates Siemens electronic trip technology with LI protection functions for applications requiring this specific trip arrangement.
• Long-Time and Instantaneous Protection: Provides long-time protection for sustained overloads and instantaneous protection for high-level fault conditions.
• TA2J6500 Line and Load Lugs: Includes the specified lugs on both sides of the breaker for compatible conductor connections.

Technical Specifications

• Manufacturer: Siemens
  
• Product Series: SENTRON
  
• Catalog Number: SCJD69400
  
• Manufacturer Part Number (MFN): SCJD69400
  
• Manufacturer Article Number: US2
  
• Product Type: Molded Case Circuit Breaker (MCCB)
  
• Breaker Designation: SJD
  
• Frame Type: JD
  
• Number of Poles: 3
  
• Rated Current: 400 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 Configuration: LI
  
• Long-Time Protection (L): Included
  
• Instantaneous Protection (I): Included
  
• Short-Time Protection (S): Not part of the specified LI configuration
  
• Ground-Fault Trip Protection (G): Not part of the specified LI 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
  
• RoHS Substance Restrictions Compliance: Reported since March 30, 2009
  
• UPC: 783643217201
  
• 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 material and standards information includes:

• UL 489: Siemens identifies the SCJD69400 as meeting the applicable molded case circuit breaker standard.
• 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 declarations through manufacturer documentation.

Where It Works Best

• Existing Siemens SCJD69400 Circuit Breaker Replacements
  
• Compatible Siemens SENTRON Distribution Systems
  
• Legacy Siemens SJD / JD Frame Installations
  
• 400-Amp Three-Pole Circuit Protection
  
• 600V AC Systems Requiring 100kA Interrupting Capacity
  
• 480V AC Systems Requiring 150kA Interrupting Capacity
  
• Electrical Systems Requiring LI Electronic Trip Protection
  
• Applications Requiring Long-Time Overload Protection
  
• Applications Requiring Instantaneous Overcurrent Protection
  
• Compatible Commercial Electrical Distribution Equipment
  
• Compatible Industrial Switchboards and Distribution Assemblies