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Siemens MQJ390KL - Molded Case 90A 3-Pole 240V Breaker

Siemens
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Siemens MQJ390KL is a 3-pole molded case circuit breaker from the MQJ Series, designed to provide thermal-magnetic protection for electrical systems. It is rated for 240V AC, 90A, and 42kA interrupting capacity at 240V, with LI (Long-Time and Instantaneous) trip functions for overcurrent and short-circuit protection. The unit features a bolt-on connection, weighs 4 lb, and is constructed as a Type MQL breaker for reliable industrial performance. It complies with applicable industry standards for safety and durability in commercial and light industrial environments. This breaker is typically used in panelboards and distribution equipment for branch circuit protection in three-phase systems.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic, MQL
  • Voltage Rating: 240V AC
  • Current Rating: 90A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 42kA@240V
  • Weight: 4 lb
  • Family: MQJ Series
  • Functions: LI - Long-Time and Instantaneous


Product Identification
  • UPC: 004089253123
  • GTIN: 00040892531237