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Siemens JL3-T400 - Thermal Magnetic Trip Unit 400A 600V

Siemens
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Siemens JL3-T400 is a thermal magnetic trip unit engineered for overcurrent protection in JL Series circuit breakers. It delivers a 400A continuous current rating at a maximum voltage of 600V AC, with an interrupting capacity of 35kA at 480V. The unit features a bolt-on mounting design and weighs 3.09 lb, constructed for integration into a 3-pole, 400-frame system. It is UL Listed, ensuring compliance with North American safety standards for industrial electrical distribution. This trip unit is suited for protecting branch circuits and feeder applications in manufacturing facilities and commercial power panels.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit
  • Amperage: 400A
  • Voltage: 600V AC
  • Poles: 3
  • Mounting Type: Bolt-on
  • Interrupt Rating: 35kA @ 480V
  • Series/Frame: JL Series
  • Frame Size: 400
  • Minimum Amperage: 400A
  • Maximum Amperage: 400A
  • Instantaneous Trip Setting: 1900-3500A
  • Weight: 3.09 lb
  • UL Listed