Siemens JD63B400 Molded Case Circuit Breaker – 400A – 3-Pole / 3-Phase – 600V – 35kA @ 480V – Bolt-On – Sentron JD Series

The Siemens JD63B400 is a 400A, 3-pole, 3-phase molded case circuit breaker from the Siemens Sentron Type JD Series. It features thermal-magnetic protection with an interchangeable trip unit and is designed for compatible commercial and industrial electrical distribution applications.

The JD63B400 is rated for 600V and provides a 35kA interrupting rating at 480V with standard interrupting capacity. It uses a bolt-on mounting configuration, includes load-side lug terminals, and is rated for operation at 40°C.

Specifications:

• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Product Family: Sentron
• Series: Sentron
• Type: JD
• Catalog No.: JD63B400
• Current Rating: 400A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Voltage Rating: 600V
• Interrupting Rating: 35kA @ 480V
• Interrupting Capacity: Standard
• Protection Type: Thermal-Magnetic
• Trip Unit: Interchangeable
• Mounting Type: Bolt-On
• Terminal Type: Load-Side Lug Terminals
• Breaker Configuration: Complete Breaker
• Temperature Rating: 40°C
• Application: Commercial and Industrial Electrical Distribution
• Brand: Siemens

Part Numbers & Identification:

• Manufacturer Part Number (MPN): JD63B400
• Catalog Number: JD63B400
• Model: JD63B400
• Product Family: Siemens Sentron Circuit Breakers
• Series: Sentron
• Type: JD
• Brand: Siemens
• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Breaker Configuration: 3-Pole, 400A
• Trip Configuration: Interchangeable Trip Unit
• UPC:783643213210

Compatibility:

Designed for use with compatible Siemens Sentron Type JD electrical distribution equipment that accepts JD Series bolt-on molded case circuit breakers. The JD63B400 provides 400A, 3-pole thermal-magnetic overcurrent protection for compatible 600V electrical distribution applications.

The breaker is supplied as a complete breaker with an interchangeable trip unit and load-side lug terminals. Always verify the specific panelboard or electrical equipment model, approved breaker type, system voltage, available fault current, pole configuration, trip-unit compatibility, lug requirements, mounting arrangement, temperature requirements, and installation specifications before installation.

Certifications:

• Siemens Sentron JD Series
• 400A Rated
• 3-Pole / 3-Phase
• 600V Rated
• 35kA @ 480V Interrupting Rating
• Standard Interrupting Capacity
• Thermal-Magnetic Protection
• Interchangeable Trip Unit
• Bolt-On Mounting
• Load-Side Lug Terminals
• Complete Breaker
• 40°C Rated

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