
L240 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $7.99 | Condition is New, NEW OEM Supco L240 Dryer Thermostat , FREE SHIPPING | ![]() |
![]() | $9.95 | Condition is New, OEM Genuine Supco / Gemline General Purpose Thermostats *New Old Stock*, FREE SHIPPING | 98.9% |
![]() | $9.99 | Condition is New, SUPCO L240 Dryer Thermostat, FREE SHIPPING | 99.9% |
![]() | $9.99 | Top Pick! Condition is New, Supco L240 Thermostat Genuine Original Equipment Manufacturer (OEM) Part, FREE SHIPPING | 99.7% |
![]() | $10.70 | Condition is New, Supco L240-40 Heater Limit Thermostat Thermodisc Open On Rise, FREE SHIPPING | ![]() |
![]() | $7.60 | Condition is New, SUPCO L240 THERMOSTAT, 60T11 STYLE 610079, shipping cost = $4.75 | 99.4% |
![]() | $11.69 | Condition is New, Supco L240 Heater Hi-Limit Thermostat Single-Pole Single-Throw (SPST) Silver, FREE SHIPPING | 99.4% |
![]() | $15.46 | Condition is New, L240 Supco 240 Spst Limit Thermostat, FREE SHIPPING | 99.2% |
![]() | $9.99 | Condition is New, NEW OEM GEMLINE/SUPCO DRYER THERMOSTAT L240, shipping cost = $7.76 | ![]() |
![]() | $16.99 | Condition is New, SUPCO SHL509 PLENUM LIMIT THERMOSTAT L240-30, FREE SHIPPING | 99.9% |
![]() | $18.98 | Condition is New, Supco SHL509 Plenum Limit Thermostat Thermodisc L240-30, FREE SHIPPING | ![]() |
![]() | $19.99 | Top Pick! Condition is New, Supco SHL504 Plenum Limit Thermostat Thermodisc L240-40, FREE SHIPPING | 99.8% |
![]() | $22.72 | Top Pick! Condition is New, Supco L240 HVAC Control Thermostat 60T11 Style 610079, FREE SHIPPING | ![]() |
![]() | $23.13 | Condition is New, Supco SHL504 Plenum Limit Thermostat Thermodisc L240-40, FREE SHIPPING | ![]() |
![]() | $10.91 | Condition is New, Supco L240-40 Heater Limit Thermostat Thermodisc Open On Rise, shipping cost = $14.55 | 94.9% |
![]() | $24.96 | Condition is New, Supco 301964 THERMOSTAT 60T11 STYLE 610079 L240, FREE SHIPPING | 98.6% |
![]() | $20.18 | Condition is New, 2PC Supco L240 L-Series Snap-Action SPST Limit Control Thermostat, L240-40F, shipping cost = $5.00 | 99.8% |
![]() | $30.00 | Condition is New, Supco Bag of Thermostats - Part#L240, shipping cost = $4.84 | 98.3% |
![]() | $24.99 | Condition is New, OEM Supco K34-869, L240 Thermostat 60T11, 240 Open /200 (40) Close Limit Switch, shipping cost = $14.99 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $12.00 | Condition is New – Open box, SUPCO L240 THERMOSTAT NIB BRAND NEW ORIGINAL PACKAGING, FREE SHIPPING | 100.0% |
![]() | $49.99 | Condition is New – Open box, (7) Supco SHL504 Plenum Limit Thermostat Thermodisc L240-40, shipping cost = $8.85 | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $6.00 | Condition is Open box, GEMLINE/SUPCO DRYER THERMOSTAT L240, shipping cost = $5.48 | 100.0% |
![]() | $15.00 | Condition is Open box, New Supco Thermostat # L240 FREE SHIPPING, FREE SHIPPING | 100.0% |


The Supco L240 Heater Hi-Limit Thermostat is a essential safety component for electric heating systems, designed to prevent overheating and potential damage to the heater. This Single-Pole Single-Throw (SPST) thermostat comes from the reputed brand Supco, delivering reliability and performance.
The L240 Model is specifically designed for use with electric baseboard heaters, electric radiant floor heat systems, or other resistance heating applications requiring a hi-limit thermostat. The thermostat mechanism is uniquely designed with a fixed temperature setting, which is factory pre-set to trigger at approximately 145 F (63 C). Once the heated element reaches this temperature, the thermostat will open the circuit, disconnecting power to prevent further heating. This helps maintain a consistent temperature and protect the heating element from potential danger of overheating, which could lead tondegrade or even melting.
The SPST design, featuring one pole and one throw, ensures a simple and straightforward electrical connection. The thermostat body has a white ceramic finish, blending seamlessly with the surrounding interior d cor, while the temperature control dial is marked with clear, easy-to-read scales, enabling precise temperature adjustments.
This heater hi-limit thermostat is engineered for longevity with a heavy-duty engineering thermoplastic housing that can withstand rigorous use in various indoor environments. Its slender size and compact nature allow for easy installation and seamless integration into electro-thermal systems.
Moreover, the Supco L240 Heater Hi-Limit Thermostat comes with a one-year limited manufacturer warranty, providing a peace of mind for homeowners andcontractors alike. For those looking to add an extra layer of safety in their electric heating applications, the Supco L240 Heater Hi-Limit Thermostat is an excellent choice.
Pros and Cons of Buying a SUPCO L240 Heater Hi-Limit Thermostat (SPST)
1. Introduction:The SUPCO L240 Heater Hi-Limit Thermostat is a single-pole single-throw (SPST) device that is widely used to protect heating systems from overheating. In this analysis, we will discuss the pros and cons of investing in this specific heating thermostat.
2. Pros:- Low Cost: The SUPCO L240 Heater Hi-Limit Thermostat is relatively affordable, making it an economical choice for homeowners and professionals looking to safeguard their heating systems from damage caused by overheating.
- Easy Installation: This thermostat is straightforward to install, as it only requires a single wire connection for each terminal (power, heating, and normal). Moreover, the clear markings on the terminals make identification effortless.
- Accurate Temperature Control: This hi-limit thermostat can accurately detect and respond to temperature fluctuations, allowing timely intervention to prevent potential overheating issues. This feature ensures consistent performance and reliability, contributing to enhanced system efficiency and extended lifespan.
3. Cons:- Lack of Programmability: One significant disadvantage of the SUPCO L240 Heater Hi-Limit Thermostat is its lack of programmability. If you're looking for a thermostat that allows you to set schedules or routine temperature adjustments, then this may not be the best choice for you.
- Limited Compatibility: This thermostat is specifically designed for single-pole single-throw (SPST) heating systems. If you're working with a more complex setup, you might need to consider a different type of thermostat better suited for your application.
4. Conclusion:The SUPCO L240 Heater Hi-Limit Thermostat offers an economical solution to protect heating systems from potential overheating issues. With its easy installation, accurate temperature control, and low cost, this SPST thermostat represents a worthwhile investment for those with simple heating requirements. However, users seeking advanced features such as programmability or compatibility with more intricate heating systems should look elsewhere.
5. Recommendation:If you have a basic heating system and are looking for a cost-effective and reliable solution to prevent overheating, the SUPCO L240 Heater Hi-Limit Thermostat is undoubtedly an excellent choice. Its uncomplicated design and straightforward functionality make it a sound investment for homeowners and professionals alike.
Details:
Product detail. Model: Supco L240. Type: thermostat. Appliance: heater.
Supco L240 heater hi-limit thermostat single-pole single-throw spst - silver. Brand: Supco.
specifications maxohvac:
- brand: Supco
- mpn: L240
- model: Supco-l240
- type: Thermostat
- unit type: Unit
- color: Silver Black
- suitable for: Heater
returns maxohvac:
- policy: no returns
offer maxohvac:
- sold #: 20
- options: ship-to-home
- started: december 26, 2024
- availability: in stock
- prices: $6.00–$49.99
- item condition:
- New
- New – Open box
- Open box
- best offers: true
- in stock #: 5
shipping maxohvac:
- service: ups ground, fedex ground or fedex home delivery
- transit: 4-11 days
- carrier: ups, fedex
- type: fixed
- class: standard
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
payments maxohvac:
- other
- wallet: google-pay
- credit card: diners-club
seller maxohvac:
- city: allenwood, pennsylvania
- # reviews: 3337
- rating: 98.2%























