Bi-Metal Disc Thermostat, 250°F (120°C) – Normally Closed & Resettable

Reliable Temperature Control with a Resettable Fuse Thermostat

Looking for a simple, effective way to control temperature in your appliances, electronics, or DIY projects? This bi-metal disc thermostat opens at 250°F (120°C), protecting your circuit and equipment from overheating. Unlike single-use fuses, this resettable fuse thermostat automatically closes again when the temperature drops below the set limit, so your system is quickly back to normal.

Easy to Install & Use Snap-Action Thermostat

Installation is simple thanks to standard 1/4" quick connect terminals that work with most wiring setups—no soldering required. The turnable mounting bracket gives you flexibility, letting you position this surface mount disc thermostat exactly where you need reliable temperature control.

Key Features & Technical Data

• Action: Normally Closed (opens circuit at temperature set point; automatically resets below that temperature)
• Operating Temperature: 250°F / 120°C (±7°F/±4°C tolerance)
• Type: Bi-metal snap-action thermal circuit breaker / thermostat
• Connections: 1/4" (6.35mm) quick connect terminals
• Mounting: Adjustable/turnable bracket for easy positioning
• Reset Type: Automatic (self-resetting when cooled)
• Product ID: NTE DTO250

Where to Use This Bi-Metal Disc Thermostat

This thermal circuit breaker is ideal for temperature control and overheating protection in fans, heaters, small appliances, lighting, power supplies, hobby electronics, and more. Its snap action thermostat design ensures fast, reliable switching every time your system reaches the set temperature.

Why Choose a Resettable Thermostat Switch?

A resettable fuse thermostat offers convenience, longer lifespan, and dependable protection compared to single-use thermal fuses. Simply install and let it protect your circuits—no need to replace parts after each temperature spike!