WESTINGHOUSE OVERLOAD RELAY HEATER 1265539-B BY65 1-7 16" X 1" STEEL A64

Description:

The Westinghouse 1265539-B (BY65 / A64) Overload Relay Heater is a thermal overload heater element designed for use in Westinghouse motor starters and overload relay assemblies. This heater element provides motor overload protection by generating heat proportional to motor current, allowing the associated overload relay to trip under sustained overload conditions. It is commonly installed in motor control centers, magnetic starters, and industrial automation equipment requiring reliable motor protection.

Applications:

The Westinghouse 1265539-B BY65 overload relay heater is commonly used in industrial motor control systems to protect electric motors from overheating and damage caused by excessive current draw. It is installed in pumps, conveyors, compressors, fans, HVAC systems, and manufacturing equipment where dependable thermal overload protection is required. The heater element works with compatible Westinghouse overload relays to provide calibrated motor protection based on motor full-load current requirements.

Technical Specifications:

• Manufacturer: Westinghouse Electric Corporation
• Part Number: 1265539-B
• Heater Designation: BY65
• Alternate Marking: A64
• Product Type: Overload Relay Heater Element
• Construction Material: Steel
• Dimensions: 1-7/16 in. × 1 in.
• Mounting Style: Plug-In Heater Element
• Function: Thermal overload protection for motor circuits
• Relay Compatibility: Westinghouse Thermal Overload Relays
• Application: Motor starters and motor control equipment
• Protection Type: Thermal overload sensing
• Installation Type: Overload relay heater replacement
• Operating Environment: Industrial electrical applications
• Intended Use: Motor overload protection and starter maintenance
• Performance Feature: Provides calibrated thermal protection to help prevent motor damage caused by overload conditions

Common Replacements:

• Eaton BY65 Overload Relay Heater Element
• Cutler-Hammer BY Series Heater Element
• Eaton A64 Thermal Overload Heater Element