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Merlin Gerin ST215D - Solid-State Trip Unit 400-1200A (600V, 3-Pole)

Merlin Gerin
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Merlin Gerin ST215D is a solid-state trip unit designed for providing precise long-time and instantaneous overcurrent protection in industrial power distribution systems. It operates with a voltage rating of 600V and is configurable for a wide current range from 400A to 1200A, housed within a compact, three-pole design. This unit is engineered for integration into compatible CK, CKAX, CKAE, CKHX, CKHE, CKIX, CKAF, and CKAL breaker frames, ensuring reliable protection for motors, feeders, and other critical circuits in commercial and industrial facilities.

Key Features & Specifications
  • Type: Solid-State Trip Unit (ST), Compact Family
  • Voltage Rating: 600V AC
  • Current Rating: 400A to 1200A
  • Poles: 3
  • Protection: Solid State
  • Functions: LI (Long-Time and Instantaneous)
  • Compatible Frames: CK, CKAX, CKAE, CKHX, CKHE, CKIX, CKAF, CKAL
  • Weight: 3 lb


Product Identification
  • Manufacturer Part Number: ST215D