WESTINGHOUSE OVERLOAD RELAY HEATER 1265539-B BY65 1-7 16" X 1" STEEL A65

Description:

The Westinghouse 1265539-B (BY65) Overload Relay Heater is a thermal overload heater element designed for use in Westinghouse motor starters and thermal overload relay assemblies. This heater element provides motor overload protection by generating heat proportional to motor current, allowing the overload relay to trip when excessive current conditions occur. It is commonly installed in industrial motor control centers, magnetic starters, and automation systems requiring dependable motor protection. The BY65 heater element features a steel construction and is designed for plug-in installation in compatible Westinghouse overload relays.

Applications:

The Westinghouse 1265539-B BY65 heater element is commonly used in motor control systems to provide thermal overload protection for AC motors. It is installed in manufacturing facilities, pumping systems, conveyors, compressors, fans, and industrial machinery where reliable motor overload protection is required. The heater works with compatible thermal overload relays to help prevent motor damage caused by sustained overcurrent conditions.

Technical Specifications:

• Manufacturer: Westinghouse Electric Corporation
• Part Number: 1265539-B
• Heater Designation: BY65
• Alternate Marking: A65
• Product Type: Overload Relay Heater Element
• Construction Material: Steel
• 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
• Dimensions: 1-7/16 in. x 1 in.
• Protection Type: Thermal overload sensing
• Operating Principle: Melting alloy thermal trip element
• Installation Type: Overload relay heater replacement
• Operating Environment: Industrial electrical applications
• Intended Use: Motor overload protection and starter maintenance.

Common Replacements:

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