FIXED TEMPERATURE THERMOSTATS Introduction Single throw, snap-action, fixed temperature thermostat 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. Features • ISO9001: 2000 certification • Ambient temperature rating from -40ºC to 240ºC (-40ºF to 464ºF) • 1NT base provides: - Low cost - High temperature capability - Clean processing - High impact strength - Low static generation • Many termination and mounting configurations available • Switch actions: - Automatic reset: Available with both normally open and normally closed switch logic - Manual reset: Mechanical reset device - Trip free manual reset: UL M2 class rating that resists consumer tampering - One shot: meets agency requirements for single operation device Applications • Power Distribution • Automation • Power Supplies • Heating Systems • HVAC • Gas and Electric Furnace • Boilers • Espresso Machines • Refrigeration • Electric motors • Heating Elements • Laboratory Equipment • Medical Equipment • Automotive & HVOR • Panel Heaters

STANDARD CONSTRUCTIONS All dimensions mm (in.) High Profile Construction Options shown: 90° – 1/4” Q.C. terminals with Surface mount flange ø3.72 (.147) Ref. 4 Post Options shown: 45°– 1/4” Q.C. terminals with 4 post and flat Al cup 1NT02 Auto Reset / Silver Contacts 1NT02TL Low Profile / One Shot 1NT20 Auto Reset / Gold Contacts 1NT01 Auto Reset / Silver Contacts 1NT11 Auto Reset / Gold Contacts 1NT09 One Shot: -35°C (-31°F) Reset 1NT10 One Shot: 0°C (32°F) Reset Part Types by Construction Options shown: Flat 1/4” Q.C. terminals with Airstream mount cup Manual Reset Construction 1NT08 Manual...

Automatic Reset Thermostats Nominal Top Temperature ˚C Standard Tolerances Not valid for Fan Devices Top Temp for Fan Devices cannot exceed 380°F (193°C) Flanges Fixed Rotation Surface Mount Flange 57336 Available mounting rotation relative to terminals - 90 ˚ with Aluminum -0 ˚, 90˚ / or 57˚, 127˚, 135˚ CCW with Nickel Plated Steel Loose Ear Surface Mount Flange 27183 Material: Aluminum Wide Eared – Fixed Rotation Mounting Flange 57337 Material: Nickel Plated Steel Available mounting rotation relative to terminals - 45˚ CCW Bolt On Assembly 73972 Thread Specs: Stud Length: ø 14.9 Hole (.587)...

Cup Styles Airstream Mount Integral Cup 57611 Material: Aluminum Available mounting rotation relative to terminals – O or 90 Closed Bottom Only ø3.7 (.146) Ref. Materials: Aluminum, Stainless Steel or Copper Material: Aluminum or Copper Closed Bottom Only Material: Stainless Steel Available mounting rotation relative to terminals 0˚, 45˚ or 90˚ with Closed Bottom 0˚ or 90˚ with Open Bottom See Note:. Airstream Mount Integral Cup 27185 Material: Stainless Steel Available mounting rotation relative to terminals - 0˚ or 90˚ Closed Bottom Only Large Oval Integral Cup 59122 Material: Aluminum Available...

Standard Terminal Solder Terminal 27182* Material: Tin Plated Brass Material: Tin Plated Brass Quick Connects 27132 27162* 27163 Thickness (A): 0.8(.031) 0.5(.020) 0.8(.031) Width (B): 6.3(.250) 4.8(.187) 4.8(.187) Materials: Brass - Solid, Ni, Ag, or Tin Plated Steel - Nickel Plated Material: Nickel Plated Steel M3 x 0.5 Class 6H Thread Material: Nickel Plated Steel Material: Nickel Plated Steel Narrow Tab *10A Max. on all terminals 0.51 (.020 thick All dimensions mm (in.) The Temperature Code is required to set up or choose the unique part number for your application requirements. ORDERING...

AGENCY APPROVALS & CERTIFICATIONS ENEC (DEKRA) Max. Temp. °C * UL rated at these current levels at specific open/close temperatures. When applying to these electrical levels, nominal open/close temperatures must be considered to determine if the thermostat selected will operate as intended in the user’s application. Please consult a Sensata Engineer for additional clarification. ** “E” means exposed disc. Electrical Rating * Parenthesis indicate inductive load ratings. ** ENEC rated at these current levels at specific open/close temperatures. When applying to these electrical levels, nominal...

WARNINGS RISK OF MATERIAL DAMAGE AND HOT ENCLOSURE • The product’s side panels may be hot, allow the product to cool before touching • Follow proper mounting instructions including torque values • Do not allow liquids or foreign objects to enter this product Failure to follow these instructions can result in serious injury, or equipment damage. HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH • Disconnect all power before installing or working with this equipment • Verify all connections and replace all covers before turning on power Failure to follow these instructions will result in death or...