EATON FH18 Thermal Overload Unit - 20 Trip Class

Product Description

Introducing the EATON Thermal Unit FH18, a pivotal component in maintaining the efficiency and safety of your electrical systems. Designed with a 20 Trip Class rating, this thermal unit is engineered to seamlessly integrate with Eaton Thermal Products, including the A200 and B100 series. The FH18 model, with its full load current range from 1.12 to 1.41 A, offers precise overload protection by utilizing thermal mechanisms to disconnect power and prevent damage to connected loads due to overheating.

This unit's compatibility with various NEMA sizes (0, 1, 2) ensures a wide application range, from industrial machinery to commercial electrical systems. Its innovative design features either bimetallic strips or melting alloy solder materials that respond to excessive current by breaking the circuit, safeguarding your equipment against potential hazards. Whether you're upgrading your system or replacing worn components, the EATON FH18 Thermal Unit offers reliability and protection tailored to your needs.

Technical Specifications

• Item Thermal Unit
• Full Load Amps 1.26 to 1.39
• For Use With Eaton B100 Series Manual Motor Starter (B100M0C, B100M1C, B100S0C, B100S1C, B100W0C, B100W1C, B100U0C, B100U1C, B100J0C, B100J1C, B100M0CA, B100M1CA, B100S0CA, B100S1CA)
• Sensing Method Bimetallic
• FL Amp @ 3-Ph/ Man. Size 0/ Open & Large Enclosure 1.26 to 1.39
• FL Amp @ 3-Ph/ Man. Size 0/ Standard Enclosure 1.26 to 1.39
• FL Amp @ 3-Ph/ Man. Size 1/ Open & Large Enclosure 1.26 to 1.39
• FL Amp @ 3-Ph/ Man. Size 1/ Standard Enclosure 1.26 to 1.39

Manufacturer Details

• Manufacturer: Eaton
• Condensed Mfg Number: FH18
• MPN: FH18

Label Details

• Hazardous Material: N
• Green Material Flag: N
• Country of Origin: DO
• CA Prop 65 Wht Label: N

Classification Details

• GDS Category Name: Thermal Units
• GDS Family Name: Starters and Contactors
• GDS Segment Name: Electrical
• UNSPSC: 39121521
• UNSPSC Class ID: 15
• UNSPSC Commodity Name: Switches and controls and relays and accessories
• UNSPSC Commodity ID: 21
• UNSPSC Commodity Name: Motor starter controls
• UNSPSC Family ID: 12
• UNSPSC Family Name: Electrical equipment and components and supplies
• UNSPSC Segment ID: 39
• UNSPSC Segment Name: Electrical Systems and Lighting and Components and Accessories and Supplies

Shipping Details

• Not For Sale In: HI AK PR

Top 10 FAQs

Q1: What is the Eaton Thermal Unit FH18 designed for?
A1: The Eaton FH18 is designed to replace damaged or worn thermal units in overload relays, protecting connected loads from overheating.

Q2: How does the FH18 model work?
A2: It uses bimetallic strips or melting alloy solder that reacts to excessive current by bending or liquefying, thus breaking the circuit to prevent damage.

Q3: What series is the FH18 compatible with?
A3: It's compatible with Eaton's A200 and B100 series, ensuring versatile application across various systems.

Q4: What are the full load current ranges for the FH18?
A4: The unit operates within a full load current range of 1.12 to 1.41 A, suitable for diverse electrical loads.

Q5: What Trip Class does the FH18 belong to?
A5: It belongs to Trip Class 20, indicating its response time and protective characteristics against overload.

Q6: Can the FH18 be used in different NEMA sizes?
A6: Yes, it's compatible with NEMA sizes 0, 1, and 2, offering flexibility in usage.

Q7: What happens when the FH18 detects overheating?
A7: It prompts the contactor to break electrical connections, preventing damage to the equipment by overheating.

Q8: Is the FH18 unit manually or automatically resettable?
A8: After cooling down, the circuit can be reset either automatically or manually, depending on the system's configuration.

Q9: Why is selecting the correct thermal unit important?
A9: Choosing the right thermal unit is crucial for ensuring optimal operating conditions of the motor starter and preventing electrical failures.

Q10: Where is the EATON FH18 Thermal Unit manufactured?
A10: It is manufactured in the Dominican Republic, with quality and reliability in mind.