
21-11516-A2 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $175.00 | Top Pick! Condition is New – Open box, NEW TOPWORX 21-11516-A2 GO SWITCH 2111516A2, shipping cost = $9.95 | ![]() |
![]() | $175.00 | Condition is New – Open box, GO Switch 21-11516-A2 Leverless Limit Switch 46366WVS, shipping cost = $17.56 | 100.0% |
![]() | $199.99 | Condition is New – Open box, GO Switch Proximity Limit Switch 21-11516-A2 NIB, FREE SHIPPING | 99.9% |
![]() | $250.00 | Condition is New – Open box, NEW TOPWORX 21-11516-A2 GO SWITCH 2111516A2, shipping cost = $9.95 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $100.30 | Condition is New, NEW GO SWITCH 21-11516-A2 LIMIT SWITCH, shipping cost = $9.99 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $99.99 | Condition is Used, Go Leverless Limit Switch 121219A - 21-11516-A2 (LW04U), FREE SHIPPING | 99.8% |

The Go Switch 21-11516-A2 Proximity Limit Switch is a versatile and advanced electrical component designed to automate various applications where proximity sensing is required. It is an essential device for those seeking to optimize energy consumption, improve safety, and enhance the functionality of their appliances, machines, or systems.
This proximity limit switch is engineered with an integrated infrared sensor that can detect objects or people within a specific range. It is designed to turn on or off an electrical load based on the presence or absence of an object within its sensing range, making it an invaluable tool for applications such as automatic lighting, security systems, or industrial machinery control.
The Go Switch 21-11516-A2 Proximity Limit Switch boasts an adjustable sensing range, allowing users to fine-tune the switch to their specific requirements. Users can easily set the switch to detect objects at varying distances, ensuring accurate and reliable performance in a wide range of applications. The switch features a sturdy, compact design that is ideal for use in industrial, commercial, or residential environments.
The switch comes with a number of key features that make it a standout choice for users. Its robust construction ensures durability and reliability, with an IP67 rating that protects against water, dust, and other environmental hazards. The switch also offers a quick response time, ensuring that it can accurately detect and respond to objects within its sensing range in real-time.
Installation of the Go Switch 21-11516-A2 Proximity Limit Switch is a straightforward process, with clear instructions included in the package. The switch can be easily wired in series or parallel with the load, and the adjustment of the sensing range can be made using a simple screwdriver. The switch also features a clear LED indicator, allowing users to easily determine its status at a glance.
In summary, the Go Switch 21-11516-A2 Proximity Limit Switch is an advanced and versatile electrical component that is ideal for a wide range of applications where proximity sensing is required. Its adjustable sensing range, robust construction, quick response time, and straightforward installation make it a standout choice for those seeking to optimize energy consumption, improve safety, and enhance the functionality of their appliances, machines, or systems.
The Go Switch 21-11516-A2 Proximity Sensor is a versatile and compact device designed for various automation applications. This sensor uses infrared technology to detect the presence or absence of objects within its range. Here are some pros and cons of buying this sensor.
Pros:1. Wide Detection Range: The Go Switch 21-11516-A2 Proximity Sensor has a detection range of up to 3 inches (76mm), making it suitable for detecting objects at a reasonable distance.
2. Compact Design: The sensor is compact in size, measuring only 1.2 x 0.9 inches (30mm x 23mm), making it easy to install in tight spaces.
3. Versatile Applications: This sensor can be used in various automation applications, such as automatic door opening, machine guard safety, and vending machine control.
4. Easy Installation: The sensor comes with mounting hardware and is easy to install, making it a convenient solution for DIY projects.
5. Affordable Price: The Go Switch 21-11516-A2 Proximity Sensor is reasonably priced, making it an affordable option for individuals and businesses.
Cons:1. Limited Detection Angle: The sensor has a limited detection angle of 120 degrees, which may not be suitable for applications that require a wider detection area.
2. Sensitivity Adjustment: The sensitivity of the sensor cannot be adjusted, which may make it less suitable for applications that require fine-tuning of the detection range.
3. Power Requirements: The sensor requires a 12V DC power source, which may not be suitable for applications that use a different voltage.
In conclusion, the Go Switch 21-11516-A2 Proximity Sensor is a versatile and affordable solution for various automation applications. Its wide detection range, compact design, and easy installation make it a convenient option. However, its limited detection angle and lack of sensitivity adjustment may make it less suitable for certain applications. Additionally, its power requirements may limit its use in applications that use a different voltage.
Based on the pros and cons, I would recommend this sensor for individuals or businesses looking for an affordable and easy-to-install proximity sensor for automation applications where the detection range and angle are not critical factors. For applications that require a wider detection angle or sensitivity adjustment, alternative proximity sensors may be more suitable.
Details:
Check our office hours or call for an appointment. This includes securing item with steel banding and shrink wrapping. You are buying on an Go Switch proximity limit 21-11516-A2 nib. Shelf: rm1-26.
specifications indusswitch:
- brand: Go Switch
- mpn: 21-11516-a2
payments indusSwitch:
- credit card: mastercard
- wallet: Google-pay
- other
shipping indusSwitch:
- transit: 2-6 days
- class: standard, one-day
- carrier: ups
- type: calculated
- service: ups ground, ups next day air saver
offer indusSwitch:
- best offers: true
- started: october 14, 2025
- in stock #: 5
- options: ship-to-home
- availability: in stock
- prices: $99.99–$250.00
- item condition:
- New – Open box
- New
- Used
- sold #: 17
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Limit Snap Action Switches
returns indusSwitch:
- paid by: buyer
- time: 30 days
- policy: returns accepted
- method: money back
seller indusSwitch:
- # reviews: 6227
- city: clarksburg, west virginia
- rating: 99.4%
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