WESTINGHOUSE 1875277A OVERLOAD RELAY (Y4)

Description:

The Westinghouse 1875277A is an overload protection relay designed to protect electrical motors and power circuits from sustained overcurrent conditions. Identified as a Y4 overload relay, this electromechanical protection device monitors current flow and initiates protective action when overload conditions occur. It is commonly used in motor control centers, industrial machinery, switchgear, and power distribution systems to help prevent motor overheating and equipment damage caused by excessive current draw.

Applications:

The Westinghouse 1875277A overload relay is commonly installed in motor starters, pump systems, compressors, conveyors, HVAC equipment, industrial processing machinery, and power distribution equipment. It provides overload protection for motors and connected electrical systems by detecting abnormal current conditions and triggering trip circuits or alarms when necessary.

Technical Specifications:

• Manufacturer: Westinghouse Electric Corporation
• Part Number: 1875277A
• Product Type: Overload Relay
• Relay Type: Y4 Overload Protection Relay
• Function: Motor and circuit overload protection
• Operating Principle: Electromechanical current sensing
• Application: Motor control and power distribution systems
• Protection Type: Overcurrent / overload protection
• Installation Type: Panel or starter mounted
• System Compatibility: Westinghouse motor starters and control equipment
• Intended Use: Motor and equipment protection
• Operating Environment: Industrial and commercial electrical applications
• Mounting Type: Control panel installation
• Service Type: OEM replacement component
• Performance Feature: Provides reliable overload sensing and protective tripping for industrial motor applications

Common Replacements:

• Siemens 3RU Overload Relay
• Schneider Electric LRD Thermal Overload Relay
• ABB TA25DU Overload Relay