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Frequently Asked Questions
What is the EATON FH45 thermal unit used for?
The EATON FH45 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 sustained overloads in industrial electrical systems.
What are the specifications of the EATON FH45 thermal unit?
The EATON FH45 thermal unit has a trip class of 20 and is designed for use with EATON motor starters. The manufacturer part number is FH45. It is a bimetallic overload relay element that responds to motor current to protect against overheating.
Where to buy the EATON FH45 thermal unit worldwide?
3G Electric supplies the EATON FH45 thermal unit worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this genuine EATON part.
How to select the correct EATON thermal unit for a motor starter?
Select the EATON thermal unit by matching its trip class and current rating to the motor's full-load amps and starting characteristics. The FH45 is a Class 20 unit, suitable for standard motor starting. Always verify compatibility with your specific EATON starter model and consult the motor nameplate.
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Common applications for EATONEATON Products
3G Electric supplies EATON electrical. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















