Description
The STC6257 is a thermal cutout device designed for over-temperature protection in industrial and consumer appliances. It automatically interrupts current when temperature exceeds 257 °F (125 °C), safeguarding equipment against overheating. Rated for up to 15 A at 120 VAC, it is ideal for furnace, heater, and machinery applications.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Supco |
| Category |
|
| Part Number |
STC6257 |
| Subcatecory |
|
| Series |
STC Series Thermal Cutouts
|
| Trip Temperature |
257 °F (125 °C)
|
| Rated Current (120 VAC) |
15 A
|
| Rated Current (250 VAC) |
10 A
|
| Rated Current (24 VDC) |
5 A
|
| Fuse Type |
One-time thermal fuse (cutout)
|
| Housing Material |
High-temperature ceramic
|
| Mounting Style |
Inline/freestanding fuse link
|
| Applications |
Furnaces, heaters, office machines, appliances
|
| Safety Function |
Backup protection for thermostats
|
| Operating Frequency |
50/60 Hz
|
| Operational Life |
Single cycle thermal response
|
| Prop 65 Compliance |
Contains materials with Prop 65 warning
|
| Weight |
1.00 lbs |
Information About STC6257
The STC6257 is part of the STC Series thermal cutouts by SUPCO, widely recognized as industry-standard safety components. It interrupts electrical circuits at 125 °C (257 °F) to prevent overheating and thermal failure. The device is rated continuously for 10 A at 250 VAC, 15 A at 120 VAC, and 5 A at 24 VDC, supporting a broad range of power systems. It is commonly installed in electric furnaces, portable heaters, office machines, and industrial equipment as a backup safety measure.
Key Features:
- Over‑Temperature Protection: Opens circuit at 257 °F (125 °C) to prevent thermal damage.
- High Current Rating: Supports 15 A at 120 VAC, 10 A at 250 VAC, and 5 A at 24 VDC.
- Ceramic Housing: Durable, high-temperature ceramic base for reliable operation.
- One-Time Fuse Link: Single-use (“one-shot”) cutoff ensures safety.
- Universal Application: Widely used in appliances, HVAC systems, and industrial heaters.
- Easy Replacement: Simple swap-out style without need for soldering.
- Compact Design: Minimal footprint for integration into tight spaces.
- Proven Reliability: Applied across millions of units in personal care and industrial devices.
The STC6257 delivers the reliability and precision required for dependable thermal protection in diverse electrical systems.
