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Siemens CLJ63B400 - Molded Case 400A 600V 3-Pole

Siemens
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Siemens CLJ63B400 is a 3-pole molded case circuit breaker from the CLJ Series, designed for reliable thermal magnetic protection in industrial and commercial power distribution systems. It is rated for 400A at 600V AC, with LI (Long-Time and Instantaneous) trip functions and a bolt-on connection, providing a high interrupting capacity of 150kA at 480V and 35kA at 480V per UL 489 and IEC 60947-2 standards. The unit weighs 35 lb and is constructed as a current-limiting, non-interchangeable breaker for robust short-circuit and overload protection in 3-phase applications.

Key Features & Specifications
  • Manufacturer: Siemens
  • Model: CLJ63B400
  • Type: Molded Case Circuit Breaker
  • Series: CLJ Series
  • Amperage: 400A
  • Voltage: 600V AC
  • Poles: 3
  • Phase: 3
  • Protection: Thermal Magnetic
  • Trip Unit: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Mounting Type: Bolt-On
  • Connection: Bolt-On
  • Interrupt Rating: 150kA at 480V, 35kA at 480V
  • AIC Rating: 150kA@480V
  • Breaker Type: Current Limiting
  • Weight: 35 lb
  • Certifications: UL 489, IEC 60947-2
  • Part Number: CLJ63B400