Sensata 1NT and 3NT Series Fixed Temperature Thermostats
Sensata 1NT Series Fixed Temperature Thermostats offer single throw, and snap-action, these fixed temperature thermostats are suitable for a variety of Industrial and commercial applications. 1NT is recognized by agencies around the world and depending on its configuration and application, is widely used as a regulating thermal switch, over-temperature control, or pilot duty control switch.
Sensata 3NT Series Fixed Temperature Thermostats offer an automatic reset thermostat designed to meet specific application requirements. Its patented and tamper-proof snap-action bi-metal disc provides reliable and repeatable switch actuation. The 3NT is suitable for electrical loads ranging from dry circuits to 10A at 240 VAC.
The core of the 3NT is the proven 1NT thermostat. Recognized by UL/CSA and KEMA/ENEC agencies, hundreds of millions of the 1NT devices are in the field and used in a variety of HVAC, appliance, automotive, and specialty applications.
Features
1NT Series:
- 1NT base provides:
- Clean processing
- High impact strength
- High-temperature capability
- Low static generation
- Ambient temperature rating from -40ºC to 240ºC (-40ºF to 464ºF)
- ISO9001: 2000 certification
- Many terminations and mounting configurations available
- Switch actions:
- Automatic reset: Available with both normally open and normally closed switch logic
- Manual reset: Mechanical reset device
- One-shot: meets agency requirements for single operation device
- Trip free manual reset: UL M2 class rating that resists consumer tampering
3NT Series:
- Automatic reset
- Fast thermal response
- High temperature - to 275ºF (135ºC)
- Innovative dry seal design - protects from moisture and dust
- Reliable 100K cycle life
- Small and easy to mount
Applications
- Automation
- Automotive and HVOR
- Boilers
- Condensing or moist environments
- Dehumidifiers
- Electric motors
- Espresso machines
- Freezers
- Gas and electric furnace
- HVAC
- Heat pumps
- Heating systems
- Ice makers
- Laboratory equipment
- Medical equipment
- Panel heaters
- Power distribution
- Power supplies
- Refrigeration
Technical Specifications
| Parameter | Value |
|---|---|
| Operating temperature range (for 1NT series) | -40ºC to +240ºC |
| Operating temperature range (for 3NT series) | -20ºC to +135ºC |
| Minimum nominal temperature differential (for 3NT series) | 8ºC |
| Dielectric strength range (for 3NT series) | 750 Vrms to 1500 Vrms |
| Standard wire leads (for 3NT series) | 18 AWG (1/32” or 1/16” wall thickness in either 105°C PVC or 125°C XLPE); 16 AWG (1/32” wall thickness in 105°C PVC) |
| Nominal top temperature (for 1NT series) | <60°C; 61°C TO 160°C; 161°C TO 204°C |
| Open tolerances (for 1NT series) | ±4.0°C; ±5.0°C; ±6.0°C |
