GO™ Switch Model 71 Limit Switch - Proximity Sensor by TopWorx™

TopWorx GO™ Switch Model 71 Limit Switch - Proximity SensorThe GO™ Switch Model 71 is a rugged, leverless limit switch designed for dependable position sensing where traditional mechanical switches fail. Built to withstand extreme conditions—including vibration, contamination, and washdown—this proximity-based switch delivers consistent, maintenance-free performance across critical industrial applications.

With no external moving parts and a sealed design, the Model 71 ensures long service life while reducing downtime and operational risk.

Features

GO™ Switch Model 71 Limit Switch Features

The Model 71 is built to perform in extreme conditions. It is designed to meet the needs of those who require precise, repeatable switching in tough environments.

Features include:

  • Durable one-piece stainless construction withstands moisture, solid, corrosives, and abuse, SPDT form C contact arrangement
  • Heavy-duty contacts
  • Snap-action response and low hysteresis provide precision position feedback
  • No lever arms, cams, or springs to break or fail
  • Immune to RFI
  • Consumes no power to operate
  • No current leakage
  • One model does it all - AC, DC, N/O, N/C, high current and low current


Options include:

  • -50° C to +204° C (-58° F to +400° F) high temperature
  • Quick disconnect connector
  • Underwater capabilities
  • LED indication


Applications include:

  • Valve position monitoring
  • Pump and compressor systems
  • Conveyor and material handling equipment
  • Safety interlocks
  • Rotating equipment

Advantages

GO™ Switch Model 71 Limit Switch Advantages

The GO™ Switch Model 71 uses advanced proximity sensing technology to detect target presence without physical contact. This eliminates mechanical wear and significantly increases operational life compared to conventional limit switches.

Ideal for industries such as oil & gas, chemical processing, power generation, and water treatment, the Model 71 excels in environments where reliability is non-negotiable.

Key Advantages

  • Contactless sensing eliminates mechanical failure points
  • Sealed construction resists dust, moisture, and corrosion
  • Performs reliably in high vibration and shock conditions
  • Suitable for hazardous and demanding industrial settings
  • Long lifecycle reduces maintenance and replacement costs

Why Model 71

Why Choose GO™ Switch Model 71 Limit Switch

Unlike traditional lever-style switches, the Model 71 operates without exposed actuators. This fundamental design difference provides a major advantage in reliability and durability.

Why Engineers Choose Model 71

  • No levers, no springs, no failures: Eliminates common wear components
  • Consistent switching accuracy: Maintains performance over time
  • Reduced maintenance requirements: Minimizes service interruptions
  • Improved uptime: Critical for continuous process environments
  • Versatile integration: Works across a wide range of industrial systems

Q & A

GO™ Switch Model 71 Limit Switch Q & A

+What is the GO™ Switch Model 71 used for?
The GO™ Switch Model 71 is a lower-profile hazardous-area proximity switch that is primarily used for position sensing in industrial equipment such as valves, pumps, and rotating machinery. It detects the presence or absence of a target without physical contact, making it ideal for harsh or high-use environments.
+How is the Model 71 different from a traditional limit switch?
Unlike mechanical limit switches, the Model 71 has no external moving parts. This eliminates wear and tear, resulting in longer service life, improved reliability, and reduced maintenance requirements.
+Can the Model 71 operate in harsh or hazardous environments?
Yes. The Model 71 is designed for demanding environments, including those with extreme temperatures, moisture, vibration, and contaminants. Its sealed construction ensures reliable operation where standard switches may fail.
+What industries commonly use the Model 71?
Industries such as oil and gas, chemical processing, power generation, water treatment, and manufacturing frequently use the Model 71 due to its durability and dependable performance in critical applications.
+Does the GO™ Switch Model 71 require maintenance?
The Model 71 is designed to be virtually maintenance-free. Its contactless sensing and sealed design eliminate common failure points, significantly reducing the need for regular servicing or replacement.


 

Downloads

Download TopWorx™ GO™ Switch ATEX/IECEx Junction Head Brochure

TopWorx™ GO™ Switch Sensing Solution Brochure

 

 
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