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General Electric TKMA3YT12 - Thermal Magnetic Trip Unit 1200A

General Electric
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⚡ Product Branding Information

Some General Electric products may now ship with ABB branding due to ABB’s acquisition of GE Industrial Solutions.

Depending on the manufacturing date or production batch, the item or packaging may display either GE or ABB branding.

Unless otherwise noted, these products are considered equivalent in form, fit, function, and specifications.

Please contact our team before placing your order if brand labeling or packaging is critical for your application.

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The General Electric TKMA3YT12 is a thermal magnetic trip unit designed for overcurrent protection within the K1200 Line of circuit breakers. It provides LI (Long-Time and Instantaneous) protection functions at a voltage rating of 600V and a current rating of 1200A across three poles. This unit weighs 3 lb and is compatible with TKMA and THKMA frames, ensuring reliable performance in industrial power distribution systems. It meets industry standards for thermal magnetic protection, making it suitable for heavy-duty applications requiring precise current management.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit
  • Voltage Rating: 600V
  • Current Rating: 1200A (Minimum 1200A, Maximum 1200A)
  • Poles: 3
  • Functions: LI - Long-Time and Instantaneous
  • Compatible Frames: TKMA, THKMA
  • Weight: 3 lb
  • Family: K1200 Line
  • Protection: Thermal Magnetic


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