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Schneider Electric 33073BA - Trip Unit LSIG 600V (Micrologic 330)

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Schneider Electric Micrologic 330 is a solid-state trip unit designed for LSIG protection—long-time, short-time, instantaneous, and ground fault—in low-voltage power circuit breakers. It operates at a voltage rating of 600V and is compatible with NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL frame circuit breakers. The unit weighs 1 lb and is field-installable, supporting both fixed and drawout mounting modes. It complies with industry standards for selective and earth-fault protection in industrial power distribution systems. This trip unit is typically applied in switchgear and motor control centers requiring coordinated overcurrent and ground fault protection.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Trip Units & Programmers
  • Family: Micrologic
  • Type: 330
  • Weight: 1 lb
  • Functions: LSIG - Long-Time, Short-Time, Instantaneous and Ground Fault
  • Voltage Rating: 600V
  • Protection: Solid State
  • Compatible Frames: NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, RL
  • Part Number: 33073BA
  • Long-time Adjustment: 9 settings with thermal protection
  • Mounting Modes: Fixed and Drawout
  • Earth-fault Protection: Yes
  • Selective Protection: Yes