Industrial 77-13523-A4 GO Switch Limit Switch

Description:

The TOPWORX 77-13523-A4 GO Switch limit switch is used in industrial position sensing systems to detect ferrous metal targets without conventional mechanical lever actuation. Commonly installed on valves, actuators, offshore equipment, machinery, and automated process systems operating in demanding industrial environments. Maintenance teams and system integrators use this part for limit switch replacement, precision position detection, valve automation repair, and restoration of reliable equipment feedback.

Applications:

The TOPWORX 77-13523-A4 limit switch is commonly used in industrial automation and process control systems where rugged end sensing and dry-contact switching are required. The Model 77 platform features a solid stainless steel housing and is designed for precision sensing in applications including valve position monitoring, machinery sensing, marine equipment, and offshore systems.

Technical Specifications:

• Manufacturer: TOPWORX
• Model / Part Number: 77-13523-A4
• Product Line: GO Switch
• Series: Model 77
• Product Type: Leverless Dry Contact Proximity Limit Switch
• Contact Configuration: SPDT Form C
• Sensing Type: End Sensing
• Standard Sensing Range: 0.100 in / 2.5 mm
• Target Type: Ferrous Metal
• Electrical Rating: 4 A at 120 VAC
• Electrical Rating: 2 A at 240 VAC
• DC Rating: 3 A at 24 VDC
• Housing Material: Stainless Steel
• Function: Position and Limit Detection
• Application: Valves, Actuators, Machinery, Marine, Offshore, and Industrial Automation Systems
• Exact A4 Wiring Configuration: Verify From Product Nameplate or Manufacturer Configuration Documentation

Common Replacements:

• TOPWORX 77-13523-A4
• TOPWORX 77-13523-B4
• TOPWORX Model 77