NTE8065 thru NTE8242
Thermal Cutoff
(Thermal Fuse)
Description:
Twenty One Thermal Cutoffs (also known as Thermal Fuses) are now included in the NTE product line. They are
miniature, NONRESETTABLE temperature sensitive devices designed to prevent appliances and electronic equipment from over-
heating. NTE thermal cutoffs are UL and CSA listed.
Literally thousands of different applications have been devised for thermalcutoffs, thus providing a large replacement market. Such
applications include:
Hair Dryers Refrigerators Battery Chargers Toasters
Irons Hot Plates Glue Guns UPS
Electric Motors Window Fans Coffee Makers And hundreds of others
Microwave Ovens Popcorn Poppers Dishwashers
The TCO (Thermal CutOff) responds to temperature by interrupting an electrical circuit when the operating and/or
environmental temperature exceeds the thermal rating of the device. This is accomplished when the internal organic pellet experiences
a phase change, allowing the spring activated contacts to permanently open the circuit.
NTE
Type No.
Diag.
No.
Functioning
Temperature
Holding
Temperature
°C°F°C°F
8065 193 66 151 42 108
8070 193 72 162 50 122
8076 193 77 171
8081 193 84 184 60 140
8085 193 87 189
8090 193 93 200
8096 193 98 209 76 169
8098 193 100 212
8103 193 104 220 80 176
8108 193 109 228 88 190
8115 193 117 243
NTE
Type No.
Diag.
No.
Functioning
Temperature
Holding
Temperature
°C°F°C°F
8118 193 121 250 94 201
8125 193 128 263 106 223
8139 193 142 287 110 230
8149 193 152 306 128 262
8167 193 170 338 146 295
8181 193 184 364 160 320
8182 193 192 378 162 324
8213 193 216 421 191 376
8226 193 228 443
8242 193 240 464 200 392
Functioning Temperature: temperature at which the Thermal Cutoff will open + tolerances.
Holding Temperature: The maximum temperature at which the thermal cutoff can be maintained while conducting the rated current for
168 hours which will not cause a change in the state of conductivity to open the circuit.
Electrical Rating
Volts Interrupting Continuous
120/250 VAC 15A 10A
240 VAC 25A RES 16.7 RES
277 VAC 20A RES 15A RES
Electrical Rating
Volts Interrupting Continuous
120277 VAC 125VA Pilot Duty
180 VAC 3A Motor Rating
FEATURES:
Maximum Current Rating: 15 Amps
Typical Opening Temperature Tolerance: +0°C, 5°C
18 Gauge Solid Copper Wire
Full 1 1/3 ” leads to fit all replacement configurations
All types meet the requirements of Underwriters
Laboratories Specifications, CSA, and VDE.
Each device comes packaged with 2 crimp splices for
solderless connection.
SUL File No. E212625
SUL File No. E126429
SUL File No. E117626 (Guide # XCMQ2)
SCUL File No. E117626 (Guide # XCMQ8)
SCSA File No. LR43279
SVDE File No. 115369
Note 1: Temperature sensitive devices. Do not store above +48°C (+120°F).
Note 2: Color Band does not denote temperature group.
Note 3: The electrical resistance of the NTE series thermal cutoff is comparable to that found in an equal length of 18 gauge solid copper wire. With
proper air flow, heat generation below 15 Amps is minimal, above 15Amps the upper limit on the current capacity will depend on the environment
for each specific application.
Note 4: A general rule of thumb for continuous operating temperature for thermal cutoffs is 30°C less than the Maximum Opening Temperature.
1.380 (35.0)
Case End
.457 (11.6) Max
.160 (4.1) Dia.
1.383 (35.1) **
Epoxy End
NOTE: Tin plated lead NOTE: Silver plated lead
Diagram 193
3.220 (81.78) Max
** Some devices may have a lead length of .660 (12.8)
Rev. 319