FH81 - Cutler Hammer||Westinghouse Thermal Overload Heater Element, 42.7-50A, NEMA Size 3/4, Class 10 Fast Trip, Type FT Overload Relay, FH Model

FH81

FH81 is a Cutler Hammer||Westinghouse thermal overload heater element designed for reliable motor protection in industrial control systems.

This solid heater is used with Type FT overload relays in NEMA Size 3 and 4 starters, providing precise thermal protection for motors with full load currents between 42.7 and 50 amperes, depending on application and enclosure type. It features a Class 10 fast trip characteristic, ensuring rapid response to overload conditions to help prevent motor damage.

Key Specifications
• Part Number: FH81
• Manufacturer: Cutler Hammer||Westinghouse
• Category: Motor Control / Thermal Overload Heater
• Amperage Range: 42.7–50A (see application for exact range)
• Voltage: Not specified (heater element, voltage rating depends on starter/relay)
• Poles: Not specified (heater element, number of poles depends on starter)
• Mounting Type: Installs in Type FT overload relay, NEMA Size 3/4
• Interrupt Rating: Not specified (determined by starter/relay assembly)
• Series/Frame: FH Model, NEMA Size 3/4
• Trip Unit: Class 10, Fast Trip
• Certifications: Not specified
• Application: For use with Type A and B overload relays, ambient compensated and non-compensating enclosed starters

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Specifications

• Part Number: FH81
• Manufacturer : Eaton
• Brand : Cutler Hammer
• Category : Motor Control
• Item Subcategory : Heater Element
• Family : A200 Series
• Type : FH
• Full Load Amp Minimum : 42.7
• Full Load Amp Maximum : 46

Product Data

• UPC : 786678670874
• GTIN : 00786678670874
• Country of Origin : Dominican Republic
• Dimensions : 2.1 in x 0.8 in x 1.3 in (Length/Depth x Height x Width)
• Weight : 0.05
• Certification : CSA Certified,UL Listed