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Square D HLA36150U31XAABCSD - Molded Case 150A 600V 3-Pole

Square D
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Square D HLA36150U31XAABCSD is a 3-pole molded case circuit breaker designed for primary overcurrent protection in industrial power distribution systems. It is rated for 600V AC, 150A continuous current, and features a solid-state trip unit with LI (Long-Time and Instantaneous) protection functions. The unit weighs 5.19 lb, utilizes an I-Line style plug-in connection, and is constructed with a compact molded case housing for panelboard installation. It complies with UL 489 standards and carries an interrupting capacity of 100kA at 480V AC, suitable for high-fault current environments. This breaker is typically applied in commercial and industrial switchboards, motor control centers, and distribution panels requiring reliable short-circuit and overload protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Trip, I-Line Plug-In Connection
  • Voltage Rating: 600V AC
  • Current Rating: 150A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 100kA@480V
  • Protection: LI - Long-Time and Instantaneous
  • Connection: I-Line Style Plug-In
  • Weight: 5.19 lb
  • Functions: LI - Long-Time and Instantaneous
  • Circuit Breaker Mounting Style: Plug-In
  • Terminal Connection: I-Line
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489
  • Installation Type: Panelboard
  • Breaker Frame: Molded Case
  • Current Rating: 150A
  • Operating Temperature Maximum Celsius: 40°C


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