JD63B400L, Interchangeable Trip Circuit Breaker

JD63B400L Interchangeable Trip Circuit Breaker - Molded Case Circuit Breaker The Siemens JD63B400L is a 3-pole interchangeable trip molded case circuit breaker designed for low voltage electrical distribution and protection. Suitable for use by electrical distributors and switchgear suppliers, this breaker provides reliable thermal magnetic trip protection with a standard breaking capacity. It is rated for use in 600 Volt AC and 500 Volt DC applications, supporting wire and cable sizes up to 500 KCM copper or aluminum conductors. The breaker is UL 489 approved and compliant with REACH/WEEE standards, making it suitable for industrial and commercial electrical installations. Specifications Manufacturer: Siemens Frame Type: JD Poles: 3 Voltage Rating: 600 Volt AC, 500 Volt DC Interrupting Rating: 25 kA at 600V AC / 500V DC Current Rating: 400 Amp at 40°C Frequency Rating: 50/60 Hz Terminal Type: Line and Load Lug installed Wire Size: 3/0 AWG to 500 KCM Copper, 4/0 AWG to 500 KCM Aluminum Dimensions (W x D x H): 9 in x 4 in x 15 in Product Weight: 19.5 lbs Operating Temperature: 40°C Approval: UL 489 Label Color: Blue Features Interchangeable trip unit allows flexible replacement and customization Thermal magnetic trip for reliable overload and short circuit protection Standard breaking capacity suitable for typical industrial and commercial applications Line and load lugs pre-installed for ease of wiring REACH and WEEE compliant, supporting environmental regulations Compact size for integration into switchgear and panelboards Downloads & Links Catalog Specification/Technical Installation/Operator