SCJD69400NT - 400 Amp Circuit Breaker

SCJD69400NT - 400 Amp Circuit Breaker

The Siemens SCJD69400NT 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, a JD frame, and a SensiTrip electronic trip unit (ETU) with long-time, short-time, and instantaneous (LSI) protection. Rated for operation up to 600V AC, the SCJD69400NT 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 frame and trip configuration.
• Three-Pole Circuit Protection: Provides overcurrent protection across three poles in compatible three-phase electrical systems.
• Siemens SENTRON Design: Part of the Siemens SENTRON molded case circuit breaker family, with defined electrical ratings and installation characteristics.
• SJD Configuration and JD Frame: Features the manufacturer's specified breaker designation and frame arrangement for approved installations.
• SensiTrip Electronic Trip Unit: Uses Siemens electronic trip technology with long-time, short-time, and instantaneous protection functions.
• Long-Time Protection (L): Addresses sustained overload conditions according to the electronic trip unit's applicable characteristics and settings.
• Short-Time Protection (S): Provides short-time tripping for applicable overcurrent conditions, supporting protection schemes designed around this feature.
• Instantaneous protection (I): Provides tripping for high-level overcurrent conditions.
• TA2J6500 Line and Load Lugs: Includes the specified lug arrangement for connecting compatible conductors on both sides of the breaker.

Technical Specifications

• Manufacturer: Siemens
  
• Product Series: SENTRON
  
• Catalog Number: SCJD69400NT
  
• Manufacturer Part Number (MFN): SCJD69400NT
  
• 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)
  
• Electronic Trip System: Siemens SensiTrip
  
• Protection Configuration: LSI
  
• Long-Time Protection (L): Included
  
• Short-Time Protection (S): Included
  
• Instantaneous Protection (I): Included
  
• Ground-Fault Protection (G): Not included in the specified LSI trip configuration
  
• Breaking-Capacity Design: Current-Limiting
  
• Standard Temperature Rating: 40°C
  
• Line-Side Lug Type: TA2J6500
  
• Load-Side Lug Type: 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
  
• REACH Article 33: Manufacturer references applicable duty-to-inform requirements
  
• SCIP Number: Not available
  
• WEEE (2012/19/EU) Take-Back Obligations: Manufacturer data lists a value of 5; obligation status is not defined in the supplied specifications
  
• UPC: 783643217225
  
• 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 states that the SCJD69400NT meets the applicable molded case circuit breaker standard.
• IEC 60947-2: Siemens identifies 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 provides information related to its duty-to-inform requirements concerning substances on the applicable candidate list.
• WEEE Directive (2012/19/EU): The supplied Siemens data lists a value of 5 without defining its meaning; no specific take-back obligation is inferred.

Where It Works Best

Existing Siemens SCJD69400NT 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 LSI Electronic Trip Protection
  
• Applications Requiring Long-Time Overload Protection
  
• Applications Requiring Short-Time Overcurrent Protection
  
• Applications Requiring Instantaneous Overcurrent Protection
  
• Compatible Commercial and Industrial Electrical Equipment