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Merlin Gerin STR18M - Solid State Trip Unit 600V 800-6300A

Merlin Gerin
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The Merlin Gerin STR18M is a solid-state trip unit designed for instantaneous overcurrent protection within the Masterpact family of circuit breakers. It operates at a voltage rating of 600V and supports an adjustable current range from a minimum of 800 amps to a maximum of 6300 amps, providing robust protection for high-capacity electrical systems. This 3-pole unit weighs 10 lb and is engineered for compatibility with M and MP frame circuit breakers, ensuring seamless integration into existing switchgear. The STR18M complies with industry standards for solid-state protection, offering precise and reliable fault interruption. It is typically deployed in industrial power distribution systems, large commercial facilities, and critical infrastructure where instantaneous trip functions are essential for safeguarding equipment and personnel.

Key Features & Specifications
  • Type: Solid-state trip unit with instantaneous protection
  • Voltage Rating: 600V
  • Current Rating: 800 to 6300 amps
  • Poles: 3
  • Protection: Solid State
  • Functions: I - Instantaneous
  • Compatible Frames: M, MP
  • Weight: 10 lb
  • Family: Masterpact
  • Item Subcategory: Trip Units & Programmers


Product Identification
  • Manufacturer: Merlin Gerin
  • Model: STR18M