Eaton FH91 Type a B Overload Relay Heater Element

Product Description

The EATON FH91 is a heater element designed for use with Type A and Type B overload relays in motor control applications. Heater elements like the FH91 provide thermal overload protection by responding to the heat generated by current flowing through the motor circuit. When current exceeds the rated threshold for a sustained period, the heater causes the overload relay to trip, protecting the motor from damage due to overload conditions. This component is installed by licensed electricians and industrial maintenance technicians working on motor control centers, starters, and similar equipment. It measures 1.9 inches by 1.3 inches by 2.2 inches and weighs 0.1 pounds.

The FH91 heater element is suited for commercial and industrial motor control installations where EATON Type A or Type B overload relays are in service. Typical applications include three-phase motor starters, combination starters, and motor control center buckets found in manufacturing, HVAC mechanical rooms, and process equipment. Electricians select the correct heater element based on motor full-load amperage and the specific overload relay class in use.

Key Features

• Compatible with EATON Type A and Type B overload relays
• Provides thermal overload protection for motor circuits
• Compact form factor: 1.9 x 1.3 x 2.2 inches
• Lightweight at 0.1 pounds for easy handling and replacement
• Direct OEM-style replacement for field service and panel upgrades

Compatibility

Designed for use with EATON Type A and Type B overload relays as a heater element replacement in motor control applications.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the NEC and applicable local codes. De-energize and lock out the motor control equipment before removing or installing heater elements. Verify the heater element selection matches the motor full-load amperage and the overload relay manufacturer sizing chart before installation. Do not operate the overload relay without the heater element properly seated and secured.

Technical Specifications

• Dimensions (L x W x H): 1.9 inches x 1.3 inches x 2.2 inches
• Weight: 0.1 pounds
• UPC: 78667867117

Standard Information

• Brand: EATON
• Manufacturer Part Number: FH91