
SHL501 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $15.59 | Condition is New, Supco SHL501 Gas Furnace Limit Thermostat Open 170, Close 130, L39-179, FREE SHIPPING | 100.0% |
![]() | $19.95 | Condition is New, NEW Supco SHL501 Plenum Gas Furnace Limit Thermostat Thermodisc L170-130 (40), FREE SHIPPING | 100.0% |
![]() | $19.99 | Condition is New, SUPCO SHL501 GAS FURNACE LIMIT THERMOSTAT 170/130, FREE SHIPPING | 99.9% |
![]() | $21.25 | Condition is New, Supco SHL501 Plenum Limit Thermostat Thermodisc L170-40, FREE SHIPPING | 99.7% |
![]() | $22.99 | Top Pick! Condition is New, Supco SHL501 Plenum Limit Thermostat Thermodisc L170-40, FREE SHIPPING | 99.8% |
![]() | $23.96 | Condition is New, Supco SHL501 Plenum Limit Thermostat Thermodisc L170-40, FREE SHIPPING | ![]() |
![]() | $18.70 | Top Pick! Condition is New, Brand New Supco SHL501 Gas Furnace Limit Thermostat Open 170, Close 130, L39-179, shipping cost = $6.37 | 99.7% |
![]() | $20.00 | Condition is New, SUPCO GAS FURNACE LIMIT THERMOSTAT 170/130 (O/C) -SHL501, shipping cost = $4.75 | 99.4% |
![]() | $20.00 | Condition is New, SUPCO GAS FURNACE LIMIT THERMOSTAT 240 -200 (O/C) -SHL504, shipping cost = $4.75 | 99.4% |
![]() | $26.36 | Condition is New, SUPCO LIMIT 170F SHL501, FREE SHIPPING | 98.0% |
![]() | $25.79 | Top Pick! Condition is New, Supco Shl501 Thermostat, Limit & Plenum, Range 170-130F, shipping cost = $5.00 | ![]() |
![]() | $35.22 | Condition is New, SHL501 Supco Gas Furnace Limit Thermostat, FREE SHIPPING | 99.2% |
![]() | $25.31 | Condition is New, SUPCO L170-40F LIMIT SWITCH SHL501, shipping cost = $13.00 | 99.5% |
![]() | $32.65 | Condition is New, SUPCO SHL501 Limit Thermostat, SPST, Open on Rise 2FBW8, shipping cost = $7.99 | ![]() |
![]() | $41.95 | Condition is New, Supco SHL501 L170-40F Limit Switch, FREE SHIPPING | 98.6% |
![]() | $46.15 | Condition is New, SHL501 Supco Furnace Bimetal Gas furnace Limit Thermostat, FREE SHIPPING | 99.8% |
![]() | $68.99 | Condition is New, NEW SUPCO SHL501 Direct Replacement Plenum Thermostat OEM, FREE SHIPPING | 95.7% |
![]() | $52.39 | Condition is New, SUPCO L170-40 SPST Limit Control Switch MFG# SHL501 HVAC Gas Furnace Sensor, shipping cost = $24.33 | 97.9% |
![]() | $70.00 | Condition is New, lot of 3 Supco SHL501 Plenum Limit Thermostat Thermodisc L170-40, shipping cost = $13.86 | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $11.49 | Condition is New – Open box, Supco SHL501 Gas Furnace Limit Thermostat Open 170, Close 130, L39-179, shipping cost = $5.48 | 100.0% |
![]() | $19.99 | Condition is New – Open box, Supco SHL501 Limit Thermostat L170-4OF, FREE SHIPPING | 99.9% |

The SUPCO SHL501 Plenum Limit Thermostat with Thermodisc L170-40 is a reliable and efficient temperature control solution designed for use in commercial and industrial applications. panel-mounted thermostat is specifically designed to meet the requirements of plenum installations, making it an excellent choice for use in data centers, clean rooms, and other applications where air quality is a top priority.
The SHL501 thermostat boasts an attractive, compact design that measures just 1-3/8 inches wide by 1-3/4 inches high, allowing it to blend seamlessly into any environment while providing precise temperature control. It features a 5-20 ma adjustable control circuit that can handle a wide range of heating and cooling systems, making it versatile and adaptable to various HVAC setups.
The THERMODISC L170-40 sensing element is a modern temperature sensing technology that offers quick response times and high accuracy. It is designed with a large, 3.25 inch diameter, thermowell, allowing for easy installation and removal for maintenance or calibration. The thermowell is made from high-quality, Type K thermocouple material, ensuring long-lasting durability and precision temperature sensing.
The SHL501 plenum limit thermostat can be set to maintain temperatures between 0 and 125 degrees Fahrenheit (-18 degrees Celsius to 52 degrees Celsius), providing a wide temperature range to suit the needs of a variety of applications. It is also equipped with a visual and audible alarm, which can be set to activate when temperatures reach a specified high or low limit, ensuring that temperature variations remain within an acceptable range.
The SUPCO SHL501 Plenum Limit Thermostat with Thermodisc L170-40 is CE and UL listed, ensuring that it complies with stringent safety and quality standards. It is also RoHS compatible, meaning that it is free from restricted hazardous substances. The thermostat includes 18 inches of lead wire, allowing for easy connection to heating and cooling systems, and features an adjustable setpoint knob, making temperature settings simple and intuitive.
Whether you're in need of precision temperature control for a critical application or looking for a reliable and accurate thermostat solution for an industrial installation, the SUPCO SHL501 Plenum Limit Thermostat with Thermodisc L170-40 is an excellent choice. Its compact design, quick response times, and versatile capabilities make it a top choice for professionals in the heating, ventilation, and air conditioning industry.
The SUPCO SHL501 Plenum Limit Thermostat Thermodisc L170-40 is a heating and cooling thermostat designed for use in commercial and industrial applications.This thermostat comes with several features that may be important for your HVAC system. Here are some pros and cons to consider before making a purchase.
Pros:1. Plenum Rating: The SHL501 is UL listed for use in plenum spaces, ensuring compliance with fire safety regulations in commercial and industrial buildings.
2. Temperature Limiting: This thermostat has a built-in temperature limiting feature that can help prevent overheating, protecting the HVAC system and the building occupants.
3. Versatility: The SHL501 can be used with a wide range of heating and cooling systems, including hydronic, pneumatic, and electric systems.
4. Remote Sensing Capability: The remote sensor allows for accurate temperature reading in the room where the sensor is placed, ensuring that the heating or cooling system is activating at the appropriate temperature.
5. Reliability: SUPCO is a reputable manufacturer with a long history of producing high-quality heating and cooling components.
Cons:1. Complexity: Compared to residential thermostats, commercial thermostats like the SHL501 can be more complex to install and program.
2. Cost: This thermostat is more expensive than most residential thermostats, reflecting its industrial-grade features and capabilities.
3. Large Size: The SHL501 is larger than most residential thermostats, requiring more mounting space.
4. Manual Setup: The SHL501 does not have a touchscreen or user-friendly interface for programming. Instead, it relies on manual setup using jumpers and switches.
In conclusion, the SUPCO SHL501 Plenum Limit Thermostat Thermodisc L170-40 is a high-quality, industrial-grade thermostat with advanced features designed for commercial and industrial applications. Its plenum rating, temperature limiting, versatility, remote sensing capability, and reliability are significant advantages. However, its complexity, cost, large size, and manual setup can be disadvantages.
If you have a commercial or industrial HVAC system, and you require a thermostat that can handle the demands of that system, the SHL501 may be an excellent investment. However, if you are looking for a simple and cost-effective thermostat for a residential application, you may want to consider a different option. Ultimately, it is essential to weigh the pros and cons carefully and consult with a qualified HVAC professional to determine if the SHL501 is the right choice for your specific application.
Recommendation:If you have a commercial or industrial HVAC system, and you require a thermostat with advanced features, plenum rating, and temperature limiting capabilities, the SUPCO SHL501 Plenum Limit Thermostat Thermodisc L170-40 is an excellent choice. However, if you have a residential application, or you are not comfortable with the complexity and cost of the SHL501, you may want to consider a simpler and more cost-effective residential thermostat from a trusted manufacturer. Consulting with an HVAC professional can help you make an informed decision based on your specific needs and budget.
Details:
Board height : 2.8 inches. Specifications. This plenum thermostat is suitable for a wide range of applications and compatible with various brands. Gas furnace limit thermostat.
Manufacturer Supco. See pics for condition and detail. This high-quality plenum thermostat from Supco is the perfect addition to any hvac and refrigeration system. Replacement for brands and numbers.
Supco part number SHL501. Board width : 1.88 inches. Plenum thermostat.
Supco SHL501 plenum limit thermostat thermodisc L170-40.
specifications maxohvac:
- brand: Supco
- mpn: Shl501
- type: Plenum Thermostat
- upc: 687152151165
- country/region of manufacture: Mexico
shipping maxohvac:
- carrier: usps
- class: standard
- type: calculated
- service: usps ground advantage
- transit: 4-10 days
seller maxohvac:
- # reviews: 3250
- rating: 99.6%
- city: centerville, indiana
payments maxohvac:
- credit card: mastercard
- wallet: paypal
- other
offer maxohvac:
- in stock #: 5
- options: ship-to-home
- sold #: 21
- best offers: true
- availability: in stock
- prices: $11.49–$70.00
- item condition:
- New
- New – Open box
- started: january 28, 2025
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
returns maxohvac:
- policy: no returns





















