
STC5257 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $5.74 | Condition is New, SUPCO Thermal cutoff - opens 262 f STC5257 (Box TTT), shipping cost = $8.60 | 98.4% |
![]() | $9.99 | Top Pick! Condition is New, SUPCO STC5257P2 Thermal Cutout 15A Model STC5257P2 MPN STC5257P2 Type 15 Amp, shipping cost = $5.62 | 97.6% |
![]() | $9.99 | Condition is New, SUPCO STC5257 Thermal Cutout - 15 Amp, 2-Pack g4am New, shipping cost = $7.60 | 100.0% |
![]() | $11.00 | Condition is New, Supco STC5257 Thermal Cutoff STC5257 Model 2-Pack Replacement Part, shipping cost = $5.97 | 100.0% |
![]() | $13.95 | Condition is New, New Supco STC5257 Thermal Cutout - 15 Amp, 2-Pack g4am, shipping cost = $3.00 | 97.6% |
![]() | $19.99 | Top Pick! Condition is New, Supco Stc5257 Thermostat Thermal Cutout 15 a 1800 W at 120 V 2400 W at 240 V, FREE SHIPPING | ![]() |
![]() | $15.50 | Condition is New, New Supco STC5257 Thermal Cut/Out Off Link Open Temp 125 - 257 - 15 Amp, 2-Pack, shipping cost = $5.00 | 97.6% |
![]() | $24.99 | Condition is New, 4x Pack Supco STC5257 Thermal Cutout 257 F 15A, FREE SHIPPING | 99.9% |
![]() | $28.44 | Condition is New, Supco STC5257 262f/128c Thermal Cutoff - 1pc, FREE SHIPPING | 98.5% |
![]() | $29.43 | Condition is New, STC5257 THERMAL CUTOFF DISKSTYLE SUPCO OPEN TEMP 262DEGF MANUAL RESET L37-940, FREE SHIPPING | 93.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $15.00 | Condition is Open box, Supco Thermal Cutoff STC5257 NEW, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $17.98 | Condition is New – Open box, NEW Supco STC5257 Thermal Cutout - Open Temp 257 - 15 Amp, FREE SHIPPING | 100.0% |

The SUPCO STC5257 Thermal Cutout is a critical safety component designed to protect electrical heating elements from overheating. This thermal cutout is specifically engineered for 257 volts, 15 amps applications.
The thermal cutout is constructed with a robust and reliable design. It features a bimetallic element that responds to temperature changes by mechanically opening or closing the circuit. When the heating element reaches a predetermined temperature, the bimetallic element bends, causing the contacts to separate, thereby opening the circuit and cutting off power to the heating element. This crucial safety feature prevents the heating element from overheating and potentially causing a fire.
The thermal cutout is designed to be mounted on a vertical surface, and it comes with a 6-inch lead wire for easy connection to the heating element. The unit is also UL listed, ensuring that it meets the highest standards of safety and reliability.
The SUPCO STC5257 Thermal Cutout is an essential component for any electrical heating application, providing reliable protection against overheating and ensuring the safe operation of the heating system. Its simple yet effective design, combined with its rugged construction and UL listing, makes it an ideal choice for industrial, commercial, or residential applications.
In summary, the SUPCO STC5257 Thermal Cutout is a vital safety component that provides protection against overheating in electrical heating applications. It is designed for 257 volts, 15 amps applications, and features a robust and reliable bimetallic design that opens the circuit when the heating element reaches a predetermined temperature. The unit is UL listed and comes with a 6-inch lead wire for easy connection to the heating element.
Supco STC5257 Thermal Cutout: A Comprehensive Analysis
The Supco STC5257 is a thermal cutout designed to protect heating systems from overheating. This device automatically shuts off the heating system when the temperature reaches a certain limit. Here are some pros and cons of buying a Supco STC5257 thermal cutout.
Pros:1. Safety: The primary function of a thermal cutout is to ensure safety by preventing the heating system from overheating, which can cause damage to the system and even pose a fire hazard.
2. Easy Installation: The Supco STC5257 thermal cutout is designed for easy installation. It can be installed on both vertical and horizontal pipes and comes with all necessary mounting hardware.
3. Adjustable Temperature Setting: The thermal cutout has an adjustable temperature setting, which allows users to set the temperature limit according to their preferences and the specific requirements of their heating system.
4. Durable: The Supco STC5257 thermal cutout is made of high-quality materials and is designed to withstand harsh conditions, making it a reliable and durable option for protecting heating systems.
Cons:1. Limited Compatibility: The Supco STC5257 thermal cutout may not be compatible with all heating systems, so it's essential to check the specifications of the heating system before purchasing the thermal cutout.
2. Additional Cost: Installing a thermal cutout is an additional cost for homeowners, and the Supco STC5257 thermal cutout may not be the most cost-effective option on the market.
3. Manual Reset: If the thermal cutout trips, it needs to be manually reset, which can be inconvenient for some users.
Conclusion:The Supco STC5257 thermal cutout is an essential safety device for protecting heating systems from overheating. Its easy installation, adjustable temperature setting, and durability make it an attractive option for homeowners. However, its limited compatibility and additional cost are important considerations. Ultimately, the decision to purchase the Supco STC5257 thermal cutout depends on the specific needs and budget of the homeowner.
Recommendation:For homeowners with heating systems that require additional safety measures, the Supco STC5257 thermal cutout is a reliable and durable option. However, it's essential to check the compatibility of the thermal cutout with the specific heating system and consider the additional cost before making a purchase. Homeowners on a tighter budget may want to explore other thermal cutout options that offer similar features at a lower cost.
Details:
Brand new free fast ship.
specifications maxohvac:
- brand: Supco
- mpn: Stc5257
- part type: Cutout Amp
- upc: 687152031900
shipping maxohvac:
- class: standard
- transit: 4-10 days
- service: usps ground advantage
- carrier: usps
- type: calculated
returns maxohvac:
- policy: no returns
payments maxohvac:
- other
- credit card: diners-club
- wallet: google-pay
offer maxohvac:
- availability: in stock
- sold #: 11
- in stock #: 5
- prices: $5.74–$29.43
- item condition:
- New
- Open box
- New – Open box
- options: ship-to-home
- started: december 13, 2025
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
seller maxohvac:
- rating: 100.0%
- city: washington, district of columbia
- # reviews: 69
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