Posted in | Temperature Gauges

Fixed Temperature Thermostat 1NT

The 1NT 1/2 Inch Fixed Temperature Thermostat, Open 50C, Close 39C 1NT01L-7934 from Sensata is a single-throw, snap-action, fixed temperature thermostat suitable for a variety of industrial and commercial applications.

Based on its configuration and use, 1NT is recognized by agencies all over the globe. It is widely used as a controlling thermal switch, over-temperature control, or pilot duty control switch.

Features

  • 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
  • 1NT base provides:
    • Low cost
    • High temperature capability
    • Clean processing
    • High impact strength
    • Low static generation
  • Many termination and mounting configurations available
  • ISO9001: 2000 certification
  • Ambient temperature rating from -40 ºC to 240 ºC (-40 ºF to 464 ºF)

Specifications

Agency Approvals and Certifications

Table 1. Source: Sensata Technologies, Inc.

UL and C-UL

Type        Max. Temp.
°C
Max. Temp.
°F
Cycles
(X 1000)
Electrical Rating Electrical Rating
1NT01, 02 204 400 100 120 Vac

240 Vac

277 Vac
0 - 9 amps
10 - 17 amps*
0 - 5 amps
6 - 17 amps*
7.2 amps
1NT08, 15, 08E** 204 400 1 + 5 240 Vac 25 amps
1NT09, 10 204 400 1-Shot 240 Vac

277 Vac
25 amps

7.2 amps
1NT11, 20 204 400 100 125 VA

30 Vdc
1 amp
1NT12, 19 204 400 1 + 5 125 VA  
1NT01E, 02E** 204 400 100 120 Vac 10 amps

* 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.

Agency Approvals and Certifications

Table 2. Source: Sensata Technologies, Inc.

ENEC (DEKRA)

Type Max Temp
°C
Cycles Electrical Rating
1NT01/02 204 100.000
30.000
30.000
240 Vac 13.5(1.66) A
240 Vac 16(5) A
400 Vac 4(1) A
1NT02T 204 1 240 Vac 16(5) A
1NT08 204 10.000
10.000
240 Vac 16(5) A
400 Vac 4(1) A
1NT09 204 1 240 Vac 16(5) A
1NT11 204 100.000 30 Vdc 1 A
1NT12 204 10.000 30 Vdc 1 A
1NT15 204 10.000 240 Vac 16(5) A
1NT20 204 100.000 30 Vdc 1 A
1NT30 204 10.000 30 Vdc 1 A
1NT31 204 10.000 30 Vdc 1 A

* Parenthesis indicate inductive load ratings.
** ENEC  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.

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