ENCL1S BRKR JD6 3P 600V 400A

ENCL1S BRKR JD6 3P 600V 400A Molded Case Circuit Breaker The Siemens ENCL1S BRKR JD6 is a low voltage, 3-pole molded case circuit breaker designed for electrical distribution and protection in industrial and commercial applications. It features a thermal-magnetic trip unit for reliable overload and short-circuit protection, suitable for use in enclosed NEMA Type 1 indoor environments. This breaker supports a 400A continuous current rating at 600V AC and is compatible with wire sizes ranging from 3/0 AWG to 500 kcmil copper and 4/0 AWG to 500 kcmil aluminum conductors. It is intended for use by electrical distributors, lighting solutions providers, wire and cable specialists, and switchgear suppliers requiring robust and standard-compliant circuit protection devices. Specifications Manufacturer: Siemens Manufacturer Part #: E1SJD63B400 Frame: JD (FD frame identifier) Number of Poles: 3 Voltage Rating: 600V AC Current Rating: 400A Interrupting Rating: 25kA Frequency Rating: 50/60 Hz Trip Unit Type: Thermal-Magnetic Enclosure Type: NEMA Type 1S (surface mounted) Operating Temperature Range: -25°C to 75°C ambient Environmental Conditions: Indoor use Wire Range (Lugs Included): 3/0 AWG - 500 kcmil (Copper), 4/0 AWG - 500 kcmil (Aluminum) Dimensions (W x H x D): 22.42 in x 41.19 in x 10.70 in Product Weight: 106.67 lbs Country of Origin: Mexico Features Assembled circuit breaker with interchangeable trip unit for flexibility Includes line and load side lugs (TA2J6500) for easy wiring connections Standard 40°C frame rating with option for 50°C calibration available Meets CSA C22.2 No. 5-13 and UL 489 standards for safety and performance Suitable for reverse feeding when ordered with non-interchangeable trip units Compatible with 75°C wire as per National Electric Code requirements Designed for mounting in individual enclosures, panelboards, or switchboards Manual operation with PUSH-TO-TRIP button for testing trip function Downloads & Links Spec Sheet Spec Sheet