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Siemens JL3T150 - Thermal Magnetic Trip Unit 150A 3P (600V)

Siemens
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Siemens JL3T150 is a thermal magnetic circuit breaker trip unit designed for providing adjustable overcurrent protection in industrial power distribution systems. It features a 600V AC voltage rating and is configured for a fixed 150A current rating across its three poles, housed within a compact unit compatible with JL Series 150A frame circuit breakers. This trip unit utilizes a combined long-time and instantaneous (LI) protection function to guard against both sustained overloads and short-circuit faults, ensuring reliable coordination within the electrical network. Its construction and operation comply with relevant industry standards for safety and performance in demanding environments, making it suitable for integration into motor control centers, panelboards, and switchgear where precise protection is required.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit, Fixed Current Rating
  • Voltage Rating: 600V AC
  • Current Rating: 150A
  • Poles: 3
  • Frame Size: 150
  • Protection Functions: Long-Time (L) & Instantaneous (I)
  • Protection Type: Thermal Magnetic
  • Compatible Frames: JL Series 150A Frame Breakers
  • Weight: 6 lb