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Frequently Asked Questions
What is the EATON FH18 thermal unit used for?
The EATON FH18 thermal unit is used for overload protection in motor starters and contactors. It provides Class 20 trip protection, meaning it will trip within 20 seconds at 600% of rated current, safeguarding motors from overheating and damage in industrial electrical systems.
What are the specifications of the EATON FH18 thermal unit?
The EATON FH18 thermal unit has a manufacturer part number FH18 and is a Class 20 trip class device. It is designed for use with EATON motor starters and contactors to provide thermal overload protection. For exact current ratings and compatibility, consult the product datasheet.
Where to buy the EATON FH18 thermal unit worldwide?
You can source the EATON FH18 thermal unit through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this part.
How to select the correct EATON thermal unit for a motor starter?
To select the correct EATON thermal unit, match the unit's trip class (e.g., Class 20 for standard motor starting) and current rating to the motor's full-load amperage. The FH18 is a Class 20 unit; verify compatibility with your specific EATON starter model and motor FLA before ordering.
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3G Electric supplies EATON electrical. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















